L5201-45-AH6-R [UTC]

Switched Capacitor Regulator, 1300kHz Switching Freq-Max, CMOS, PDSO6, TSOT-26, 6 PIN;


型号：	L5201-45-AH6-R
厂家：	Unisonic Technologies
描述：	Switched Capacitor Regulator, 1300kHz Switching Freq-Max, CMOS, PDSO6, TSOT-26, 6 PIN 光电二极管
文件：	总7页 (文件大小：164K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UNISONIC TECHNOLOGIES CO., LTD

L5201

CMOS IC

LOW NOISE, REGULATED

CHARGE PUMP DC/DC

CONVERTERS

MSOP-8

ꢀ

DESCRIPTION

The UTC L5201-xx series are low noise, constant frequency

SOT-26

charge pump DC/DC converters and designed to increase efficiency

in white LED application. The operating voltage range is 2.7V ~ V_OUT

input with up to 100mA of output current. Low external parts counts

(one flying capacitor and two small bypass capacitors at V_INand

V_OUT) make the UTC L5201-xx series ideally suited for small,

battery-powered applications.

TSOT-26

charge-pump architecture maintains constant switching

frequency to zero load and reduces both output and input ripple. The

UTC L5201-xx series have thermal shutdown capability to escape

the device damaged from a continuous short-circuit. With built-in

soft-start circuitry to prevents excessive current flow at V_INduring

start-up. High switching frequency enables the use of small ceramic

capacitors. A low-current shutdown feature disconnects the load from

*Pb-free plating product number: L5201L

V_INand reduces quiescent current to <1µA.

The L5201-ADJ is available in MSOP-8 package and

L5201-fixed in SOT-26 and TSOT-26 package.

ꢀ

FEATURES

* Low Noise Constant Frequency Operation

* Output Current:

90mA@3.0V<V_IN<5V

100mA@3.0V<V_IN<4.5V

* 1MHz Switching Frequency

* 4.5V/5.0V Fixed Output Voltage

* V_INRange: 2.7V ~ V_OUT

* Automatic Soft-Start.

* No Inductors

* Less than 1µA of Shutdown Current

ꢀ ORDERING INFORMATION

Ordering Number

Package

Packing

Normal

L5201-AD-SM1-R

L5201-AD-SM1-T

L5201-xx-AG6-R

L5201-xx-AH6-R

Note: xx :output voltage

Lead Free Plating

L5201L-AD-SM1-R

L5201L-AD-SM1-T

L5201L-xx-AG6-R

L5201L-xx-AH6-R

MSOP-8

SOT-26

Tape Reel

Tube

Tape Reel

TSOT-26

L5201L-AD-SM1-R

(1)Packing Type

(2)Package Type

(3)Output Voltage

(4)Lead Plating

(1) R: Tape Reel, T: Tube

(2) SM1: MSOP-8, AG6: SOT-26, AH6: TSOT-26

(3) AD: ADJ, xx: 45:4.5V, 50:5.0V

(4) L: Lead Free Plating, Blank: Pb/Sn

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L5201

CMOS IC

ꢀ

MARKING (For SOT-26/TSOT-26)

Lead Plating

Voltage Code

L F

ꢀ

PIN CONFIGURATIONS

SOT-26/TSOT-26

MSOP-8

OUT

UTC

L5201-XX

(Fixed)

UTC

L5201-ADJ

GND

SHDN

SGND

PGND

SHDN

ꢀ

PIN DESCRIPTION

PIN NO.

NAME

FUNCTION

L5201-ADJ

L5201-xx

SOT-26/TSOT-26

MSOP-8

C+

V_IN

Flying Capacitor Positive Terminal

Input Supply Voltage, should be bypassed with at least 6.8µf lo

w ESR

ceramic capacitor.

C¯

Flying Capacitor Negative Terminal

Ground terminal, should be tied to a ground plane for best

performance

4, 5

GND

Shutdown Mode, Active-Low Input. A low on

disables the

SHDN

L5201 series.

must not be allowed to float.

SHDN

Feedback Input Pin for Adjustable output. An output divider should be

connected from V_OUTto FB to program the output voltage.

Regulated Output Voltage, should be bypassed with at least 6.8µf low

V_OUTESR ceramic capacitor as close as possible to the pin for best

performance

X : The pin is Inexistent for SOT-26 and TSOT-26 package.

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L5201

CMOS IC

ꢀ

BLOCK DIAGRAM

UTC L5201 Adjustable version (MSOP-8)

SWITCH

CONTROL

SOFT- START

SHDN

ERROR

OSCILLATOR

AMPLIFIER

1.268V

V_OUT

CHARGE

PUMP

VIN

SGND

PGND

UTC L5201 fixed version (SOT-26/TSOT-26)

SWITCH

CONTROL

SOFT- START

SHDN

V_OUT

OSCILLATOR

ERROR

AMPLIFIER

1. 268V

CHARGE

PUMP

V_IN

C ^_

GND

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L5201

CMOS IC

ꢀ

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

V_IN

RATINGS

-0.3 ~ 6

UNIT

Input Voltage(to GND)

Charge Pump Voltage(to GND)

Shutdown Voltage(to GND)

V_OUT

V_SHDN

-0.3 ~ 5.5

-0.3 ~ (V_IN+0.3)

150

Maximum DC Output Current (Note 1)

V_OUTShort-Circuit Duration

I_OUT

Indefinite

-40 ~ +85

-40 ~ +150

Operating Temperature

T_OPR

T_STG

℃

Storage Temperature

Note: 1. Based on long-term current density limitations.

2. Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

ꢀ

ELECTRICAL CHARACTERISTICS

(V_CC=V_SHDN= 3V, Ta=25°C, C_FLY=1µF, C_IN=10µF, C_OUT=10µF, unless otherwise specified.)

PARAMETER

SYMBOL

V_IN

TEST CONDITIONS

V_OUT=5.0V

MIN

2.7

TYP

MAX UNIT

Input Voltage

V_OUT

2.7V＜V_IN＜5V, I_OUT=0mA,

No Switching Supply Current

I_Q

4.5

140

µA

SHDN=V_IN, V_OUT=5.5V

2.7V＜V_IN＜5V, I_OUT≤ 50mA

3.0V＜V_IN＜5V, I_OUT≤ 100mA

2.7V＜V_IN＜5V, I_OUT≤ 40mA

3.0V＜V_IN＜5V, I_OUT≤ 90mA

L5201-4.5V

4.32

4.68

5.2

Output Voltage

V_OUT

L5201-5.0V

4.8

1.4

SHDN Input Threshold

High

Low

V_IH

V_IL

0.3

Feedback Voltage (For L5201-ADJ)

V_FB

1.217 1.268 1.319

V_IN= 3V, I_OUT= 50mA

V_IN= 3V, I_OUT= 90mA

2.7V＜V_IN＜5V, I_OUT=0mA,

Ripple Voltage (For L5201-Fixed)

V_R

mV_P-P

Shutdown Supply Current

I_SHDN

I_FB

µA

V_SHDN= 0

Feedback Input Current (For L5201-ADJ)

Efficiency (For L5201-Fixed)

V_FB=1.4V

-50

0.7

V_IN= 2.7V, I_OUT= 40mA

V_IN= 3V, I_OUT= 90mA

Frequency

F_OSCOscillator Free Running

t_ONV_IN= 3V, I_OUT= 0mA

_IN= 3V, V_OUT= GND,

1.3

MHz

V_OUTTurn-on time

0.35

Short-Circuit Current

I_SC

SHDN = 3V

340

Thermal Shutdown Temperature

Thermal Shutdown Hysteresis

T_SD

150

℃

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L5201

CMOS IC

ꢀ

TYPICAL APPLICATION CIRCUIT

10µF

C^_

+2%

2.7V ~ V_OUT

OUT

OUT = 5V

10µF

IOUT UP~ 40 mA VIN ≥ 2.7V

10µF

GND

IOUT UP ~ 90 mA VIN ≥ 3.0V

SHDN

OFF

C_IN, C_OUT: TAIYO YUDEN, JMK212BJ106KG

_FLY: TAIYO YUDEN, EMK212JB105KG

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L5201

CMOS IC

ꢀ

TYPICAL CHARACTERISTICS

Startup Time with 50mA Load

Startup Time with 90mA Load

V_SHDN

V_OUT

Ch1 2.00V Ch2 2.00V 100µs Ch1 1.52V

Output Ripple With I_OUT=50mA

Output Ripple With I_OUT=90mA

Ch1 10.0mV

M 1.00µs Ch1 5.60mV

Ch1 10.0mV

M 1.00µs Ch1 5.40mV

Output Voltage vs Supply Voltage

Output Voltage vs Output Current

5.2

5.15

5.1

5.15

5.1

5.05

V_IN=3.6V

5.05

Ta = 100℃

= 25℃

4.95

4.9

4.95

4.9

Ta = -40℃

V_IN=2.7V

V_IN=3.0V

4.85

4.8

I_OUT=20mA

3.0

4.8

2.5

10 20 30 40 50 60

Output Current (mA)

3.5

5.0

70 80

4.0

4.5

Supply Voltage (V)

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L5201

CMOS IC

ꢀ

TYPICAL CHARACTERISTICS(Cont.)

Frequency vs Supply Voltage

Output Voltage vs Temperature

1200

1150

1100

1050

1000

950

5.2

= 100℃

5.15

5.1

= 25℃

5.05

900

4.95

850

= -40℃

4.9

800

V_IN=3.0V

4.85

4.8

750

I_OUT=50mA

700

2.5

-40 -20

100

3.0

3.5

4.0

4.5

5.0

Supply Voltage (V)

Temperature (℃)

Efficiency vs Load Current

V_IN= 2.7V

Frequency vs. Temperature

1200

1150

1100

1050

1000

950

100

V_IN= 3.0V

V_IN= 3.3V

900

V_IN= 3.6V

850

800

750

700

-40

0.01

0.1

100

1000

-20

100

Load Current (mA)

Temperature(℃)

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.

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