TPS60313_技术文档

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

features

applications

D

Regulated 3-V or 3.3-V Output Voltage With

up to 20-mA Output Current From a

0.9-V to 1.8-V Input Voltage Range

D

Pagers

Battery-Powered Toys

Portable Measurement Instruments

Home Automation Products

High Power Conversion Efficiency (up to

90%) Over Wide Output Current Range,

Optimized for 1.2-V Battery Voltage

Medical Instruments (Like Hearing

Instruments)

Snooze Mode for Improved Efficiency at

Low-Output Current

Metering Applications Using MSP430

Microcontroller

Additional Output With 2 Times V (OUT1)

I

Device Quiescent Current Less Than 2 µA

Portable Smart Card Readers

Supervisor Included; Open Drain or

Push-Pull Power Good Output

DGS PACKAGES

(TOP VIEW)

D

No Inductors Required/Low EMI

PG

SNOOZE

C1–

1

2

3

4

5

10

9

D

Only Five Small, 1-µF Ceramic Capacitors

Required

GND

C2–

C2+

OUT2

V

8

IN

C1+

7

D

Microsmall 10-Pin MSOP Package

6

OUT1

description

The TPS6031X step-up, regulated charge pumps

ACTUAL SIZE

3,05 mm x 4,98 mm

generate a 3-V ±4% or 3.3-V ±4% output voltage

from a 0.9-V to 1.8-V input voltage (one alkaline,

NiCd, or NiMH battery).

Only five small 1-µF ceramic capacitors are required to build a complete high-efficiency dc/dc charge pump

converter. To achieve the high efficiency over a wide input voltage range, the charge pump automaticallyselects

between a 3x or 4x conversion mode.

typical application circuit

EFFICIENCY

vs

OUTPUT CURRENT (OUT2)

C1F

1 µF

C2F

1 µF

90

80

70

60

50

40

30

20

10

0

Snooze Mode

2

4

8

7

C1– C1+ C2– C2+

INPUT

0.9 V to 1.8 V

2× IN

Max 40 mA

5

3

+

OUT1

V

IN

+

C

1 µF

(OUT1)

C

1 µF

IN

TPS60310

OUT2

3.3 V ±4%

Max 20 mA

(OUT2)

1 µF

6

Normal Mode

+

C

R

1

SNOOZE

10

PG

ON/OFF

GND

9

V = 1.3 V

I

0.001 0.01

0.1

1

10

100

I

O

– Output Current (OUT2) – mA

Snooze mode improves efficiency at an output current

in the range of 1 µA to 100 µA.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

description (continued)

Output 1 (OUT1) can deliver a maximum of 40 mA, from a 1-V input, with output 2 (OUT2) not loaded. OUT2

can deliver a maximum of 20 mA, from a 1-V input, with OUT1 not loaded. Both outputs can be loaded at the

same time, but the total output current of the first voltage doubler must not exceed 40 mA. For example, the load

at OUT1 is 20 mA and the load at output 2 is 10 mA.

In snooze mode, the devices operate with a typical operating current of 2 µA, while the output voltage is

maintained at 3.3 V ±10% or 3 V ±10%, respectively. This is lower than the self-discharge current of most

batteries. Load current in snooze mode is limited to 2 mA. If the load current increases above 2 mA, the output

voltage drops further and the devices automatically exits the snooze mode and operate in normal mode to

regulate to the nominal output voltage with higher output currents. The device is set into the snooze mode by

taking the SNOOZE pin low, and is set into normal operating mode by taking the SNOOZE pin high.

A power-good function supervises the output voltage of OUT2 and can be used for power up and power down

sequencing. Power-good (PG) is offered as either open-drain or push-pull output.

AVAILABLE OPTIONS

OUTPUT

PART

NUMBER

MARKING DGS

PACKAGE

CURRENT 1 CURRENT 2 VOLTAGE 1 VOLTAGE 2

FEATURE

†

‡

§

[mA]

[V]

2 x V

[V]

3.3

3

TPS60310DGS

TPS60311DGS

TPS60312DGS

TPS60313DGS

ATG

ATI

40

20

Open-drain power-good output

Push-pull power-good output

IN

40

20

ATK

ATL

40

20

3.3

3

40

20

†

‡

§

The DGS package is available taped and reeled. Add R suffix to device type (e.g. TPS60310DGSR) to order quantities of 2500 devices per reel.

If OUT2 is not loaded.

If OUT1 is not loaded.

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

TPS60310 and TPS60311 functional block diagram

C1F

C1–

C1+

CP1

2x (Doubler)

OUT1

V

IN

Charge Pump

PG

(Push-Pull Output

for TPS60312 and

TPS60313)

_

+

Control

Oscillator

SNOOZE

_

+

Reg

+

V

ref

_

CP2

1.5x/2x

Charge Pump

OUT2

C2–

C2+

GND

C2F

Terminal Functions

TERMINAL

NAME NO.

C1+

I/O

DESCRIPTION

4

2

7

8

9

5

6

Positive terminal of the flying capacitor C1F

Negative terminal of the flying capacitor C1F

Positive terminal of the flying capacitor C2F

Negative terminal of the flying capacitor C2F

GROUND

C1–

C2+

C2–

GND

OUT1

OUT2

O

2 × V power output. Bypass OUT1 to GND with the output filter capacitor C .

IN (OUT1)

Regulated 3.3-V power output (TPS60310, TPS60312) or 3-V power output (TPS60311, TPS60313), respectively

Bypass OUT2 to GND with the output filter capacitor C

.

(OUT2)

PG

10

O

Power good detector output. As soon as the voltage on OUT2 reaches about 98% of its nominal value this pin goes

high.

Open drain output on TPS60310 and TPS60311. A pullup resistor should be connected between PG and OUT1 or

OUT2.

Push-pull output stage on TPS60312 and TPS60313

SNOOZE

1

3

I

Snooze mode enable input

– SNOOZE = Low enables the snooze mode at low output current.

– SNOOZE = High disables the snooze mode.

V

IN

Supply input. Bypass V to GND with a ≥ 1-µF capacitor.

IN

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

detailed description

operating principle

The TPS6031X charge pumps are voltage quadruplers that provide a regulated 3.3-V or 3-V output from a 0.9-V

to 1.8-V input. They deliver a maximum load current of 20 mA. Designed specifically for space critical battery

powered applications, the complete converter requires only five external capacitors and enables the design to

use low-cost, small-sized, 1-µF ceramic capacitors. The TPS6031X circuits consist of an oscillator, a voltage

reference, an internal resistive feedback circuit, two error amplifiers, two charge pump stages with MOSFET

switches, a shutdown/start-up circuit, and a control circuit.

snooze mode

The devices contain a circuit which dramatically reduces the quiescent current at light loads. This so called

snooze mode must be enabled by pulling the SNOOZE pin low. When the output current decreases below the

snooze mode threshold, the device enters the snooze mode. In snooze mode, the main error amplifier with 4%

error and 50-µA supply current is disabled and a 10%, 2-µA regulator controls the output voltage.

start-up procedure

The start-up performance of the device is independent of the level of the snooze input. When voltage is applied

to the input, CP1 will first enter a dc start-up mode during which the capacitor on OUT1 is charged up to about

V . After that, it starts switching to boost the voltage further up to about two times V . CP1 first enters a dc

IN

start-up mode during which the capacitor on OUT1 is charged up to about V . CP2 then follows and charges

IN

up the capacitor on OUT2 to about the voltage on OUT1, after that, it also starts switching and boosts up the

voltage to its nominal value. The voltage at the SNOOZE pin must not exceed the highest voltage applied to

the device.

NOTE:

During start-up with V

= 0 V, the highest voltage is the input voltage.

OUT

power-good detector

The power-good output is an open-drain output on the TPS60310 and TPS60311 or a push-pull output on the

TPS60312 and TPS60313. The PG-output pulls low when the output of OUT2 is out of regulation. When the

output rises to within 98% of regulation, the power-good output goes active high. In shutdown, power-good is

pulled low. In normal operation, an external pullup resistor with the TPS60310 and TPS60311 is typically used

to connect the PG pin to VOUT. The resistor should be in the 100-kΩ to 1-MΩ range. If the PG output is not used,

it should remain unconnected. Output current at PG (TPS60312, TPS60313) reduces maximum output current

at OUT2.

In snooze mode, the output voltage is sampled at a rate up to 2 ms and is applied to the power-good comparator.

In normal mode, the output voltage is measured continuously.

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

†

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

Input voltage, V (IN to GND) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 2 V

I

Output voltage, V (OUT1, OUT2, EN, PG to GND) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 3.6 V

O

Voltage, (C1+ to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V

+ 0.3 V

O(OUT1)

Voltage, (C1– to GND, C2– to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V + 0.3 V

Voltage, (C2+ to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V

IN

+ 0.3 V

O(OUT2)

Continuous power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table

Output current, I (OUT1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 mA

O

Output current, I (OUT2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA

O

Storage temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 150°C

stg

Maximum junction temperature, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C

J

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: The voltage at SNOOZE and PG can exceed IN up to the maximum rated voltage without increasing the leakage current drawn by these

pins.

DISSIPATION RATING TABLE

T

<25_C

DERATING FACTOR

T

= 70_C

T

A

= 85_C

A

PACKAGE

POWER RATING

ABOVE T = 25_C

POWER RATING

A

DGS

424 mW

3.4 mW/_C

271 mW

220 mW

NOTE: The thermal resistance junction to ambient of the DGS package is R

= 294_C/W.

TH–JA

recommended operating conditions

MIN NOM

MAX

UNIT

V

Input voltage, V

0.9

1.8

20

40

I

Output current (OUT2), I

mA

µF

O(OUT2)

O(OUT1)

Output current (OUT1), I

Input capacitor, C

1

I

Flying capacitors, C1F, C2F

1

µF

Output capacitors, C

C

1

µF

O(1), O(2)

Operating junction temperature, T

–40

125

°C

J

5

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

electrical characteristics at C = C1F = C2F = C

= C

= 1 µF, T = –40°C to 85°C,

IN

(OUT1)

(OUT2) C

V

= 1 V, V

= V (unless otherwise noted)

IN

(SNOOZE) IN

PARAMETER

Supply voltage range

TEST CONDITIONS

MIN

TYP

MAX

UNIT

V

IN

0.9

1.8

V

≥ 1.1 V,

I

= 0 mA,

IN

O(OUT2)

= 0 mA

40

20

10

40

20

12

I

(PG,1)

I

O(OUT1)

V

= 0.9 V, I

IN

O(OUT2)

= 0 mA

I

(PG,1)

Maximum output current for TPS60310,

TPS60312

mA

V

≥ 1.1 V, I

IN

O(OUT1)

= 0 mA

I

(PG,1)

I

O(OUT2)

O(OUT1)

O(OUT2)

V

= 0.9 V, I

IN

O(OUT1)

= 0 mA

I

(PG,1)

V

≥ 1.1 V,

I

IN

O(OUT2)

I

= 0 mA

(PG,1)

I

V

= 0.9 V,

I

IN

O(OUT2)

Maximum output current for TPS60311,

TPS60313

I

= 0 mA

(PG,1)

mA

V

≥ 1 V, I

IN

O(OUT1)

= 0 mA

I

(PG,1)

V

= 0.9 V, I

= 0 mA,

IN

O(OUT1)

= 0 mA

I

(PG,1)

1.1 V < V < 1.8 V,

IN

I

= 0 mA

3.17

2.85

3.3

3.43

3.6

O(OUT1)

0 < I

< 20 mA

O(OUT2)

V

0.9 V < V < 1.1 V,

IN

= 0 mA, I

V

Output voltage for TPS60310, TPS60312

O(OUT2)

I

< 10 mA

= 0 V,

O(OUT1)

O(OUT2)

0.9 V < V < 1.8 V, V

IN

(SNOOZE)

< 1 mA or

0 < I

O(OUT2)

O(OUT1)

< 2 mA

1 V < V < 1.8 V,

IN

I

= 0 mA,

2.88

2.6

3

3.12

3.15

3.27

O(OUT1)

0 < I

< 20 mA

O(OUT2)

> 1.65 V, I

V

= 0 mA,

O(OUT1)

IN

25 µA < I

V

Output voltage for TPS60311, TPS60313

O(OUT2)

< 20 mA

O(OUT2)

0.9 V < V < 1.8 V, V

= 0 V,

IN

(SNOOZE)

0 < I

< 1 mA or

3.3

O(OUT2)

O(OUT1)

< 2 mA

OUT2

I

= 20 mA

I

= 0 mA

30

60

35

O(OUT2)

,

O(OUT1)

I

O(OUT2)

Output voltage ripple

mV

P–P

OUT1

= 40 mA

O(OUT1)

= 0 mA,

,

I

Q

Quiescent current (no-load input current)

Quiescent supply current in snooze mode

V = 1.8 V

IN

70

10

µA

O

V

T

= 1.65 V,

V

= 0 V,

IN

= 60°C

(SNOOZE)

2

C

I

µA

(SQ)

OSC

V

T

= 1.65 V,

= 0 V,

IN

≤ 25°C

(SNOOZE)

1.5

4

C

f

Internal switching frequency

EN input low voltage

470

700

900

kHz

V

= 0.9 V to 1.8 V

0.3×V

IN

IL(EN)

IH(EN)

IN

V

EN input high voltage

0.7×V

V

IN

V

= 0 V or V or V

IN

O(OUT1)

or

O(OUT2)

(EN)

I

EN input leakage current

LinSkip switching threshold

0.01

7.5

0.1

µA

lkg

V

= 1.25 V

mA

IN

I

2

1

8

4

O(OUT1)

Snooze mode threshold

V

= 1.25 V

O(OUT2)

6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

electrical characteristics at C = C1F = C2F = C

= C

= 1 µF, T = –40°C to 85°C,

IN

(OUT1)

(OUT2) C

V

= 1 V, V

= V (unless otherwise noted) (continued)

IN

(SNOOZE) IN

PARAMETER

TEST CONDITIONS

MIN

TYP

20

MAX

50

UNIT

V

= 0 V

5

O(OUT2)

O(OUT1)

Short circuit current

V

= 1.8 V

mA

IN

V

2

80

150

= 1.25 V,

T = 25°C

C

< 20 mA

IN

Output load regulation

0.1

0.75

1

%/mA

%/V

2 mA < I

O(OUT2)

1 V < V < 1.65 V, T = 25°C,

IN

= 10 mA

C

I

O(OUT)

Output line regulation

1 V < V < 1.65 V, T = 25°C,

IN

C

%/V

I

= 1 mA, V

= 0 V

O(OUT2)

(SNOOZE)

No load start-up time

400

4.0

µs

Impedance of first charge pump stage

Ω

V

≥ 1.1 V

≥ 1 V

165

330

IN

Start-up performance at OUT2 (minimum start-up load

resistance)

Ω

= 0.9 V

1000

Startup performance at OUT1 (minimum start-up load

resistance)

V

IN

= 1 V

500

electrical characteristics for power good comparator of devices TPS6031X at T = –40°C to 85°C,

C

V

= 1 V and V

= V (unless otherwise noted)

IN

(SNOOZE) IN

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

V

Power-good trip voltage

V

ramping positive

ramping negative

V

O

– 1%

V

O

V

(PG)

hys

OL

O

V

Power-good trip voltage hysteresis

Power-good output voltage low

10%

V

= 0 V, I

= 1.6 mA

0.3

0.1

V

(PG)

= 3.3 V, V

TPS60310

TPS60311

TPS60312

TPS60313

= 3.3 V

0.01

(PG)

= 3 V

I

Power-good leakage current

µA

lkg

= 3 V, V

(PG)

3

V

OH

Power-good output voltage high

I

= –5 mA

V

O(PG)

2.7

TPS60312,

TPS60313

I

Output current at power good (source)

Output current at power good (sink)

–5

mA

Ω

O(PG,1)

All devices

V

(PG)

V

(PG)

V

(PG)

= 0 V

1.6

O(PG,0)

TPS60312,

TPS60313

R

= V

15

(PG,1)

(PG,0)

O(OUT2)

Output resistance at power good

All devices

= 0 V

100

Ω

7

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

TYPICAL CHARACTERISTICS

Table of Graphs

FIGURE

1, 2

3

η

Efficiency

vs Output current (TPS60310 and TPS60311)

vs Output current

I

Supply current

S

Quiescent current

vs Input voltage

4

Q

V

Output voltage at OUT2

Output voltage at OUT1

Output voltage at OUT2

Output voltage at OUT1

Output voltage at OUT2

Output voltage ripple at OUT2

Minimum input voltage

Start-up timing enable

Switching frequency

Load transient response

Line transient response

Output voltage

vs Output current (TPS60310 and TPS60311)

5, 6

7

O(OUT2)

O(OUT1)

O(OUT2)

O(OUT1)

O(OUT2)

vs Output current at 25°C, V = 0.9 V, 1.1 V, 1.25 V, 1.4 V, 1.6 V, 1.8 V

I

vs Input voltage (TPS60310 and TPS60311)

8, 9

10

vs Input voltage (TPS60310 and TPS60311)

vs Free-air temperature (TPS60310, TPS60312, TPS60311, and TPS60313)

11, 12

13

vs Output current for TPS60310, TPS60312, TPS60311, and TPS60313

vs Input voltage

14, 15

16

17

18

19

V

O

vs Time

20

Output voltage ripple in Snooze mode

21

TYPICAL CHARACTERISTICS

TPS60310, TPS60312

EFFICIENCY

vs

TPS60311, TPS60313

EFFICIENCY

vs

OUTPUT CURRENT

90

80

70

90

80

70

V = 0.9 V

I

V = 0.9 V

I

V = 1.25 V

I

V = 1.25 V

I

60

50

40

30

20

10

60

50

40

30

V = 1.8 V

I

V = 1.8 V

I

20

10

0

V

= V

1

(Snooze)

I

V

= V

(Snooze) I

0

0.1

10

100

0.1

1

10

100

I

O

– Output Current – mA

I

O

– Output Current – mA

Figure 1

Figure 2

8

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

TYPICAL CHARACTERISTICS

TPS6031X

QUIESCENT CURRENT

vs

TPS60310

SUPPLY CURRENT

vs

INPUT VOLTAGE

OUTPUT CURRENT

36

140

120

100

34

32

T

A

= –40°C

V = 0.9 V

I

T

A

= 25°C

30

28

V = 1.8 V

I

80

60

40

T

A

= 85°C

V = 1.25 V

I

26

24

V

= V

I

(Snooze)

20

0

22

20

0.80

1

1.20

1.40

1.60

1.80

2

0

10

I

20

30

40

V – Input Voltage – V

I

– Output Current – mA

O

Figure 3

Figure 4

TPS60310, TPS60312

TPS60311, TPS60313

OUTPUT VOLTAGE (OUT2)

vs

OUTPUT VOLTAGE (OUT2)

vs

OUTPUT CURRENT (OUT2)

3.4

3.2

3.1

3

V = 1.8 V

I

V = 1.8 V

I

V = 1.25 V

I

V = 1.25 V

I

V = 1.1 V

I

V = 1.1 V

I

2.9

2.8

3

2.8

2.6

V = 0.9 V

I

V = 0.9 V

I

2.7

2.6

0

10

20

30

40

10

20

30

40

0

I

O

– Output Current (OUT2) – mA

I

O

– Output Current (OUT2) – mA

Figure 5

Figure 6

9

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SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

TYPICAL CHARACTERISTICS

TPS60310, TPS60312

OUTPUT VOLTAGE (OUT1)

vs

TPS60310, TPS60312

OUTPUT VOLTAGE (OUT2)

vs

OUTPUT CURRENT (OUT1)

INPUT VOLTAGE

4

3.35

3.3

V = 1.8 V

I

3.5

I

= 0.1 mA

3.25

O(OUT2)

= 1 mA

I

O(OUT2)

V = 1.6 V

I

= 10 mA

O(OUT2)

3

3.2

3.15

3.1

V = 1.4 V

I

= 20 mA

O(OUT2)

2.5

V = 1.25 V

I

V = 1.1 V

I

2

3.05

3

V = 0.9 V

I

1.5

0

20

40

60

0.8

1

1.2

1.4

1.6

1.8

I

O

– Output Current (OUT1) – mA

V – Input Voltage – V

I

Figure 7

Figure 8

TPS60310, TPS60312

OUTPUT VOLTAGE (OUT2)

vs

TPS6031x

OUTPUT VOLTAGE (OUT1)

vs

INPUT VOLTAGE

3.1

3.5

I

= 0.1 mA

O(OUT2)

I

= 0.1 mA

O(OUT1)

I

= 1 mA

O(OUT2)

3.05

3

I

= 10 mA

O(OUT1)

3

I

= 10 mA

O(OUT2)

2.5

I

= 20 mA

O(OUT2)

I

= 40 mA

O(OUT1)

2.95

2

2.9

1.5

0.8

2.85

1

1.2

1.4

1.6

1.8

0.8

1

1.2

1.4

1.6

1.8

V – Input Voltage – V

I

V – Input Voltage – V

I

Figure 9

Figure 10

10

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SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

TYPICAL CHARACTERISTICS

TPS60311, TPS60313

OUTPUT VOLTAGE (OUT2)

vs

TPS60310, TPS60312

OUTPUT VOLTAGE (OUT2)

vs

FREE-AIR TEMPERATURE

3.04

3.02

3

3.40

3.30

3.20

V = 1.8 V

I

V = 1 V

I

V = 1.25 V

I

V = 1 V

I

V = 1.8 V

I

V = 1.25 V

I

2.98

2.96

2.94

3.10

3

2.90

2.80

2.92

2.90

–40

10

60

110

–40

10

60

110

T

A

– Free-Air Temperature – °C

T

A

– Free-Air Temperature – °C

Figure 11

Figure 12

TPS60310, TPS60312

MINIMUM INPUT VOLTAGE

vs

TPS6031x

OUTPUT CURRENT

OUTPUT VOLTAGE RIPPLE (OUT2)

1.20

1.15

1.10

1.05

1.00

0.95

0.90

0.85

0.80

0.75

0.70

I

= 20 mA,

O(OUT2)

V = 1.2 V

I

T

= 85°C

A

10 mV/DIV

T

A

= –40°C

T

A

= 25°C

500 ns/DIV

0.10

1

10

100

I

O

– Output Current – mA

Figure 13

Figure 14

11

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SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

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SLVS362A – MAY 2001 – REVISED AUGUST 2001

TYPICAL CHARACTERISTICS

TPS60311, TPS60313

MINIMUM INPUT VOLTAGE

vs

OUTPUT CURRENT

1.20

START-UP TIMING ENABLE

V

O(OUT2)

1.15

2 V/DIV

1.10

1.05

V

O(OUT1)

1.00

2 V/DIV

0.95

0.90

I

IN

0.85

0.80

0.75

0.70

100 mA/DIV

1 V/DIV

T

= 85°C

A

V

(EN)

T

= 25°C

A

T

A

= –40°C

50 us/DIV

0.10

1

10

100

I

O

– Output Current – mA

Figure 15

Figure 16

SWITCHING FREQUENCY

vs

LOAD TRANSIENT RESPONSE

INPUT VOLTAGE

730

20 mV/DIV

T

A

= 85°C

720

710

V

O(OUT2)

700

690

680

670

V = 1.25 V,

Load Step 2 mA to

18 mA to 2 mA,

I

T

A

= 25°C

T

A

= –40°C

T = 25°C

A

10 mA/DIV

660

650

I

O(OUT2)

20 us/DIV

0.8

1.3

1.8

V – Input Voltage – V

I

Figure 18

Figure 17

12

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SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

TYPICAL CHARACTERISTICS

LINE TRANSIENT RESPONSE

V = 1.1 V to

I

1.7 V to 1.1 V,

I

T

= 20 mA

O(OUT2)

= 25°C

A

V

O(OUT2)

50 mV/DIV

V

I

1 V/DIV

500 us/DIV

Figure 19

OUTPUT VOLTAGE

vs

TIME

OUTPUT VOLTAGE RIPPLE IN SNOOZE MODE

V = 1.25 V,

I

V = 1.25 V,

I

C

= 1 mA,

= 10 µF

O(OUT2)

I

C

= 1 mA,

= 1 µF

O(OUT2)

V

O(OUT2)

100 mV/DIV

V

100 mV/DIV

O(OUT2)

1 V/DIV

V

(Snooze)

200 us/DIV

Figure 20

Figure 21

13

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SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

APPLICATION INFORMATION

design procedure

capacitor selection

The TPS6031X devices require only five external capacitors. Their values are closely linked to the required

output current and the output noise and ripple requirements. It is possible to only use 1-µF capacitors of the

same type.

The input capacitor improves system efficiency by reducing the input impedance and stabilizing the input

current.

The minimum required capacitance of the output capacitor (C ) that can be selected is 1 µF. Depending on the

O

maximum allowed output ripple voltage, larger values can be chosen. Table 1 shows capacitor values

recommended for low output voltage ripple operation. A recommendation is given for the smallest size.

Table 1. Recommended Capacitor Values for Low-Output Voltage Ripple Operation

V

[mV]

C

[µF]

C

[µF]

C

OUT

[µF]

P–P

IN

XF

V

[V]

I

IN

O(OUT2)

[mA]

AT 20 mA/

CERAMIC

V

IN

= 1.1 V

0.9...1.8

0.9…1.8

0…20

1

16

10

6

2.2

10 // 0.1

Table 2. Recommended Capacitors

MANUFACTURER

PART NUMBER

SIZE

CAPACITANCE

TYPE

Taiyo Yuden

UMK212BJ104MG

LMK212BJ105KG

LMK212BJ225MG

JMK316BJ475KL

0805

1206

0.1 µF

1 µF

2.2 µF

4.7 µF

Ceramic

AVX

0805ZC105KAT2A

1206ZC225KAT2A

0805

1206

1 µF

2.2 µF

Ceramic

Table 3 lists the manufacturers of recommended capacitors. However, ceramic capacitors will provide the

lowest output voltage ripple due to their typically lower ESR.

Table 3. Recommended Capacitor Manufacturers

MANUFACTURER

Taiyo Yuden

AVX

CAPACITOR TYPE

X7R/X5R ceramic

INTERNET

www.t-yuden.com

www.avxcorp.com

www.vishay.com

Vishay

Kemet

www.kemet.com

TDK

www.component.tdk.com

14

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

APPLICATION INFORMATION

capacitor selection (continued)

OUTPUT

3.3 V, 20 mA

INPUT

0.9 V to 1.8 V

3

6

OUT2

V

IN

+

C

1 µF

IN

1 µF

(OUT2)

R1

C

TPS60310

10

7

PG

4

2

C1+

C2+

C

1F

1 µF

2F

1 µF

8

5

C1–

C2–

1

SNOOZE

OUT1

+

GND

9

C

(OUT1)

1 µF

Figure 22. Typical Operating Circuit

For the maximum output current and best performance, five ceramic capacitors of 1 µF are recommended. For

lower currents or higher allowed output voltage ripple, other capacitors can be used. It is recommended that the

input and output capacitors have a minimum value of 1 µF. This value is necessary to assure a stable operation

of the system due to the linear mode. With flying capacitors lower than 1 µF, the maximum output power

decreases. This means that the device works in the linear mode with lower output currents.

output filter design

The power-good output is capable of driving light loads up to 5 mA (see Figure 23). Therefore, the output

resistance of the power-good pin with the output capacitor, can be used as an RC-filter.

C

1F

C1–

C1+

V

OUT2

IN

Charge Pumps,

Logic

and Control

C

(OUT2)

R

(PG1)

(PG0)

_

+

SNOOZE

PG

+

V

_

ref

OUT1

C

(OUT1)

C2–

C2+

GND

C

2F

Figure 23. TPS60312, TPS60313 Push-Pull Power-Good Output-Stage as Filtered Supply

15

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SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

APPLICATION INFORMATION

output filter design (continued)

Due to R

by:

an output filter can easily be formed with an output capacitor (C ). Cutoff frequency is given

PG

(PG,1),

1

ƒ +

(1)

c

2pR

C

(PG,1) PG

V

(PG,1)

1

and ratio V /V for the ac ripple is:

Ť Ť

⁺Ǹ

O

I

(2)

(3)

V

_{1 )}ǒ_2pƒ_{R(PG,1) PG}Ǔ²

O(OUT2)

C

with R

= 15 Ω, C

= 0.1 µF, and f = 600 kHz (at nominal switching frequency)

(PG,1)

PG

V

(PG,1)

Ť Ť_{+ 0.175}

V

O(OUT2)

Load current sourced by power-good output reduces maximum output current at OUT2. During start-up

(power-goodgoinghigh)currentchargingC dischargesC .Therefore,C mustnotbelargerthanC

PG

(OUT2)

PG

(OUT2)

PG

≤ 0.1 C

or the device does not start. By charging C

through C

, the output voltage at OUT2

(OUT2)

decreases. If the capacitance of C is to large, the circuit detects power bad. The power-good output goes low

anddischargesC . Thenthecyclestartsagain. Figure24showsaconfigurationwithanLC-postfiltertofurther

PG

reduce output ripple and noise.

LP

INPUT

0.9 V to 1.8 V

3

6

OUT2

V

IN

+

V

P(OUT)

C

P

IN

1 µF

(OUT2)

1 µF

R1

C

TPS60310

10

7

PG

4

2

C1+

C2+

C

1 µF

1F

2F

1 µF

8

5

C1–

C2–

1

SNOOZE

OUT1

+

GND

9

C

ON/OFF

(OUT1)

1 µF

Figure 24. LC-Post Filter

Table 4. Recommended Values for Lowest Output Voltage Ripple

V

I

C

[µF]

C

[µF]

XF

C

[µF]

OUT

C [µF]

V

IN

O(OUT2)

[mA]

IN

P

P(OUT)

[mV]

L [µH]

P

[V]

CERAMIC

V

P–P

16

0.9…1.8

20

1

0.1

1

0.1 (X7R)

1 // 0.1 (X7R)

0.1 (X7R)

12

14

3

1

1 // 0.1 (X7R)

16

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HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

APPLICATION INFORMATION

output filter design (continued)

6

OUT2

Display

3

R

1 M

1

+

V

IN

MSP430

C

+

(OUT2)

1 µF

C

IN

1 µF

TPS60312

10

7

PG

1.5 V

4

2

C

0.1 µF

PG

C1+

C2+

C

1F

1 µF

C

2F

1 µF

8

5

Amplifier

Sensor

C1–

C2–

ON

1

SNOOZE

OUT1

+

GND

9

C

(OUT1)

1 µF

Figure 25. Application With MSP430; PG as Supply for Analog Circuits

power dissipation

As given in the data sheet, the thermal resistance of the unsoldered package is R

= 294°C/W. Soldered on

θJA

the EVM, a typical thermal resistance of R

= 200°C/W was measured.

θJA(EVM)

The thermal resistance can be calculated using equation 4.

T –T

J

A

(4)

R

+

θJA

P

D

Where:

T is the junction temperature.

J

T is the ambient temperature.

A

P is the power that needs to be dissipated by the device.

D

The maximum power dissipation can be calculated using equation 5.

P = V × I – V × I = V × (3 × I + I ) – V × I

O

(5)

D

IN

O

IN(max)

O

(SUPPLY)

O

The maximum power dissipation happens with maximum input voltage and maximum output current:

At maximum load the supply current is approximately 2 mA.

P = 1.8 V × (3 × 20 mA + 2 mA) – 3.3 V × 20 mA = 46 mW

(6)

D

With this maximum rating and the thermal resistance of the device on the EVM, the maximum temperature rise

above ambient temperature can be calculated using equation 7.

∆T = R

× P = 200°C/W × 46 mW = 10°C

(7)

J

θJA

D

This means that internal dissipation increases T by 10°C.

J

The junction temperature of the device must not exceed 125°C.

This means the IC can easily be used at ambient temperatures up to:

T = T

– ∆T = 125°C – 10°C = 115°C

J

(8)

A

J(max)

layout and board space

All capacitors should be soldered as close as possible to the IC. A PCB layout proposal for a two-layer board

is shown in Figure 26. Care has been taken to connect all capacitors as close as possible to the circuit to achieve

optimized output voltage ripple performance. The bottom layer is not shown in Figure 26. It only consists of a

ground-plane with a single track between the two vias that can be seen in the left part of the top layer.

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HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

APPLICATION INFORMATION

layout and board space (continued)

PG

9,8 mm

OUT2

GND

V

IN

OUT1

0 mm

EN

0 mm

7,62 mm

Figure 26. Recommended PCB Layout for TPS6031X (top layer)

device family products

Other charge pump dc-dc converters in this family are:

Table 5. Product Identification

PART

DESCRIPTION

NUMBER

TPS60100 2-cell to regulated 3.3-V, 200-mA low-noise charge pump

TPS60101 2-cell to regulated 3.3-V, 100-mA low-noise charge pump

TPS60110

TPS60111

3-cell to regulated 5-V, 300-mA low-noise charge pump

3-cell to regulated 5-V, 150-mA low-noise charge pump

TPS60120 2-cell to regulated 3.3-V, 200-mA high-efficiency charge pump with low-battery comparator

TPS60121 2-cell to regulated 3.3-V, 200-mA high-efficiency charge pump with power-good comparator

TPS60122 2-cell to regulated 3.3-V, 100-mA high-efficiency charge pump with low-battery comparator

TPS60123 2-cell to regulated 3.3-V, 100-mA high-efficiency charge pump with power-good comparator

TPS60124 2-cell to regulated 3-V, 200-mA high-efficiency charge pump with low-battery comparator

TPS60125 2-cell to regulated 3-V, 200-mA high-efficiency charge pump with power-good comparator

TPS60130 3-cell to regulated 5-V, 300-mA high-efficiency charge pump with low-battery comparator

TPS60131 3-cell to regulated 5-V, 300-mA high-efficiency charge pump with power-good comparator

TPS60132 3-cell to regulated 5-V, 150-mA high-efficiency charge pump with low-battery comparator

TPS60133 3-cell to regulated 5-V, 150-mA high-efficiency charge pump with power-good comparator

TPS60140 2-cell to regulated 5-V, 100-mA charge pump voltage tripler with low-battery comparator

TPS60141 2-cell to regulated 5-V, 100-mA charge pump voltage tripler with power-good comparator

TPS60200 2-cell to regulated 3.3-V, 100-mA low-ripple charge pump with low-battery comparator in MSOP10

TPS60201 2-cell to regulated 3.3-V, 100-mA low-ripple charge pump with power-good comparator in MSOP10

TPS60202 2-cell to regulated 3.3-V, 50-mA low-ripple charge pump with low-battery comparator in MSOP10

TPS60203 2-cell to regulated 3.3-V, 50-mA low-ripple charge pump with power-good comparator in MSOP10

TPS60210 2-cellto regulated 3.3-V, 100-mA low-ripple charge pump with ultralow operating current and low-battery comparator in MSOP10

TPS60211

2-celltoregulated3.3-V,100-mAlow-ripplechargepumpwithultralowoperatingcurrentandpower-goodcomparatorinMSOP10

TPS60212 2-cellto regulated 3.3-V, 100-mA low-ripple charge pump with ultralow operating current and low-battery comparator in MSOP10

TPS60213 2-cell to regulated 3.3-V, 50-mA low-ripple charge pump with ultralow operating current and power-good comparator in MSOP10

18

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

MECHANICAL DATA

DGS (S-DPS-G10)

PLASTIC SMALL-OUTLINE PACKAGE

0,27

0,17

M

0,25

0,50

10

6

0,15 NOM

3,05

2,95

4,98

4,78

Gage Plane

0,25

0°–ā6°

1

5

0,69

0,41

3,05

2,95

Seating Plane

0,10

0,15

0,05

1,07 MAX

4073272/A 03/98

NOTES: A. All linear dimensions are in millimeters.

B. This drawing is subject to change without notice.

C. Body dimensions do not include mold flash or protrusion.

19

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

IMPORTANT NOTICE

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any product or service without notice, and advise customers to obtain the latest version of relevant information

to verify, before placing orders, that information being relied on is current and complete. All products are sold

subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those

pertaining to warranty, patent infringement, and limitation of liability.

TI warrants performance of its products to the specifications applicable at the time of sale in accordance with

TI’sstandardwarranty. TestingandotherqualitycontroltechniquesareutilizedtotheextentTIdeemsnecessary

to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except

those mandated by government requirements.

Customers are responsible for their applications using TI components.

In order to minimize risks associated with the customer’s applications, adequate design and operating

safeguards must be provided by the customer to minimize inherent or procedural hazards.

TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent

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Mailing Address:

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Post Office Box 655303

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型号：	TPS60313
厂家：	TEXAS INSTRUMENTS
描述：	SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE 单节3 -V / 3.3 V ， 20 mA的双输出，高效率的充电带贪睡模式泵输出元件功效泵
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