TPS77501-EP [TI]
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS; 快速瞬态响应500 mA低压差稳压器
| 型号： | TPS77501-EP |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS |
| 文件： | 总26页 (文件大小：790K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
D
Controlled Baseline
− One Assembly/Test Site, One Fabrication
Site
D
D
D
Ultralow 85 μA Typical Quiescent Current
Fast Transient Response
2% Tolerance Over Specified Conditions for
Fixed-Output Versions
D
D
D
D
D
Extended Temperature Performance of
−55°C to 125°C
Enhanced Diminishing Manufacturing
Sources (DMS) Support
D
20-Pin TSSOP PowerPAD™ (PWP) Package
Thermal Shutdown Protection
D
Enhanced Product Change Notification
PWP PACKAGE
(TOP VIEW)
†
Qualification Pedigree
Open Drain Power-On Reset With 200-ms
Delay
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GND/HSINK
GND/HSINK
GND/HSINK
GND/HSINK
NC
NC
RESET
FB/NC
OUT
OUT
GND/HSINK
GND/HSINK
D
500-mA Low-Dropout Voltage Regulator
GND
NC
EN
IN
IN
D
Available in 1.5-V, 1.6-V, 1.8-V, 2.5-V, 3.3-V
Fixed Output and Adjustable Versions
D
Dropout Voltage to 169 mV (Typ) at 500 mA
(TPS77533)
NC
GND/HSINK
GND/HSINK
†
Component qualification in accordance with JEDEC and industry
standards to ensure reliable operation over an extended
temperature range. This includes, but is not limited to, Highly
Accelerated Stress Test (HAST) or biased 85/85, temperature
cycle, autoclave or unbiased HAST, electromigration, bond
intermetallic life, and mold compound life. Such qualification
testing should not be viewed as justifying use of this component
beyond specified performance and environmental limits.
NC − No internal connection
description
The TPS775xx devices are designed to have a fast transient response and be stable with a 10-μF low ESR
capacitors. This combination provides high performance at a reasonable cost.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 169 mV at an
output current of 500 mA for the TPS77533) and is directly proportional to the output current. Additionally, since the
PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading
(typically 85 μA over the full range of output current, 0 mA to 500 mA). These two key specifications yield a significant
improvement in operating life for battery-powered systems. This LDO family also features a sleep mode; applying
a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to 1 μA at T = 25°C.
J
The RESET output of the TPS775xx initiates a reset in microcomputer and microprocessor systems in the event
of an undervoltage condition. An internal comparator in the TPS775xx monitors the output voltage of the regulator
to detect an undervoltage condition on the regulated output voltage.
The TPS775xx is offered in 1.5-V, 1.6-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version
(programmable over the range of 1.5 V to 5.5 V for TPS77501 option. Output voltage tolerance is specified as a
maximum of 2% over line, load, and temperature ranges. The TPS775xx family is available in 20 pin TSSOP
package.
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.
PowerPAD is a trademark of Texas Instruments.
Copyright © 2010, Texas Instruments Incorporated
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
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
TPS77x33
DROPOUT VOLTAGE
vs
TPS77x33
FREE-AIR TEMPERATURE
LOAD TRANSIENT RESPONSE
3
2
1
10
10
10
10
C = 2x47 μF
o
C = 10 μF
o
ESR = 1/2x100 mΩ
50
0
V
O
= 3.3 V
V = 4.3 V
I
I
= 500 mA
O
−50
I
O
= 10 mA
0
500
0
−1
10
10
I
O
= 0 mA
−2
−60 −40 −20
0
20 40 60 80 100 120 140
0
20 40 60 80 100 120 140 160 180 200
T
A
− Free-Air Temperature − °C
t − Time − μs
ORDERING INFORMATION†
OUTPUT
VOLTAGE
(V TYP)
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
T
A
PACKAGE
3.3
2.5
TSSOP − PW Tape and reel
TPS77533MPWPREP
TPS77525MPWPREP
TPS77518MPWPREP
77533ME
77525ME
77518ME
77516ME
77515ME
TSSOP − PW
TSSOP − PW
TSSOP − PW
TSSOP − PW
Tape and reel
Tape and reel
Tape and reel
Tape and reel
1.8
§
−55°C to 125°C
1.6
TPS77516MPWPREP
TPS77515MPWPREP
1.5
‡
Adjustable
TSSOP − PW
Tape and reel
TPS77501MPWPREP
77501ME
1.5 V to 5.5 V
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
The TPS77501 is programmable using an external resistor divider (see application information).
TPS77516 is Product Preview.
‡
§
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
6
7
16
RESET
V
I
IN
IN
RESET
14
13
OUT
OUT
V
O
5
0.1 μF
EN
†
C
o
+
10 μF
GND
3
†
See application information section for capacitor selection details.
Figure 1. Typical Application Configuration for Fixed Output Options
functional block diagram—adjustable version
IN
EN
RESET
OUT
_
+
+
_
200 ms Delay
(for RESET Option)
R1
R2
V
ref
= 1.183 V
FB/NC
GND
External to the device
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
functional block diagram—fixed-voltage version
IN
EN
RESET
_
+
OUT
+
_
200 ms Delay
(for RESET Option)
R1
R2
V
ref
= 1.183 V
GND
Terminal Functions
TSSOP Package
TERMINAL
I/O
DESCRIPTION
NAME
EN
NO.
5
I
I
Enable input
FB/NC
GND
15
3
Feedback input voltage for adjustable device (no connect for fixed options)
Regulator ground
Ground/heatsink
GND/HSINK
1, 2, 9, 10, 11,
12, 19, 20
IN
6, 7
4, 8, 17, 18
13, 14
I
Input voltage
NC
No connect
OUT
RESET
O
O
Regulated output voltage
RESET output
16
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
RESET timing diagram
V
I
†
†
V
res
V
res
t
‡
‡
V
O
V
IT+
V
IT+
Threshold
Voltage
Less than 5% of the
output voltage
‡
‡
V
IT−
V
IT−
t
RESET
Output
200 ms Delay
200 ms Delay
Output
Undefined
Output
Undefined
t
†
V
res
is the minimum input voltage for a valid RESET. The symbol V is not currently listed within EIA or JEDEC standards for semiconductor
res
symbology.
‡
V
IT
−Trip voltage is typically 5% lower than the output voltage (95%V ) V to V is the hysteresis voltage.
O IT− IT+
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
‡
Input voltage range , V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 13.5 V
I
Voltage range at EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 16.5 V
Maximum RESET voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5 V
Peak output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
Output voltage, V (OUT, FB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
O
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See dissipation rating tables
Maximum junction temperature, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C
J
Thermal impedance, junction to ambient§, θ
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.63°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4°C/W
JA
Thermal impedance, junction to currentt§, θ
JC
Storage temperature range, T
ESD rating, HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
stg
†
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.
All voltage values are with respect to network terminal ground.
‡
§
Package thermal impedance is calculated in accordance with JESD 51-5.
TPS77501MPWP-EP Estimated Lifetime at Elevated Temperatures
Electromigration and Wirebond Voiding Fail Modes
1000
100
Wirebond Voiding Fail Mode
10
Electromigration Fail Mode
1
115
120
125
130
135
140
145
150
Continous T - Junction Temperature - 5C
j
recommended operating conditions
MIN
2.7
1.5
0
MAX
10
UNIT
V
#
Input voltage, V
I
Output voltage range, V
5.5
V
O
Output current, I (see Note 1)
500
125
mA
°C
O
Operating virtual junction temperature, T (see Note 1)
−55
J
#
To calculate the minimum input voltage for your maximum output current, use the following equation: V
= V
+ V
.
I(min)
O(max)
DO(max load)
NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the device
operate under conditions beyond those specified in this table for extended periods of time.
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
electrical characteristics over recommended operating free-air temperature range,
VI = VO(typ) + 1 V, IO = 1 mA, EN = 0 V, Co = 10 μF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
1.5 V ≤ V ≤ 5.5 V,
T = 25°C
V
O
J
O
TPS77501
TPS77515
TPS77516
TPS77518
TPS77525
TPS77533
1.5 V ≤ V ≤ 5.5 V,
T = −55°C to 125°C
J
0.98V
1.02V
O
O
O
V
T = 25°C,
J
2.7 V < V < 10 V
1.5
1.6
1.8
2.5
3.3
85
IN
T = −55°C to 125°C, 2.7 V < V < 10 V
J
1.470
1.530
IN
T = 25°C,
J
2.7 V < V < 10 V
IN
V
V
T = −55°C to 125°C, 2.7 V < V < 10 V
J
1.568
1.764
2.450
3.234
1.632
1.836
2.550
3.366
125
IN
Output voltage (10 μA to 500 mA load)
(see Note 2)
T = 25°C,
J
2.8 V < V < 10 V
IN
T = −55°C to 125°C, 2.8 V < V < 10 V
J
IN
T = 25°C,
J
3.5 V < V < 10 V
IN
T = −55°C to 125°C, 3.5 V < V < 10 V
J
IN
T = 25°C,
J
4.3 V < V < 10 V
IN
T = −55°C to 125°C, 4.3 V < V < 10 V
J
IN
10 μA < I < 500 mA, T = 25°C
O
J
Quiescent current (GND current)
EN = 0V, (see Note 2)
μA
I
O
= 500 mA,
T = −55°C to 125°C
J
Output voltage line regulation (ΔV /V
(see Notes 2 and 3)
O
O
)
V
O
+ 1 V < V ≤ 10 V, T = 25°C
0.01
3
%/V
mV
I
J
Load regulation
BW = 200 Hz to 100 kHz, I = 500 mA
C
Output noise voltage (TPS77518)
Output current limit
53
μVrms
C = 10 μF,
o
T = 25°C
J
V
O
= 0 V
1.7
150
1
2.4
10
A
Thermal shutdown junction temperature
°C
μA
EN = V ,
T = 25°C, 2.7 V < V < 10 V
I
J
I
Standby current
EN = V ,
T = −55°C to 125°C
J
I
μA
2.7 V < V < 10 V
I
FB input current
TPS77501
FB = 1.5 V
2
nA
V
High level enable input voltage
Low level enable input voltage
Power supply ripple rejection (see Note 2)
1.7
0.9
V
f = 1 KHz, C = 10 μF, T = 25°C
60
dB
o
J
NOTES: 2. Minimum IN operating voltage is 2.7 V or V
+ 1 V, whichever is greater. Maximum IN voltage 10V.
O(typ)
3. If V ≤ 1.8 V then V
= 2.7 V, V
= 10 V:
O
Imin
Imax
OǒVImax * 2.7 VǓ
V
ǒ
Ǔ
Line Reg. (mV) + %ńV
1000
100
If V ≥ 2.5 V then V
= V + 1 V, V = 10 V:
O
Imin
O
Imax
* ǒV
100
Ǔ
) 1 V Ǔ
1000
OǒVImax
V
O
ǒ
Ǔ
Line Reg. (mV) + %ńV
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
electrical characteristics over recommended operating free-air temperature range,
VI = VO(typ) + 1 V, IO = 1 mA, EN = 0 V, Co = 10 μF (unless otherwise noted) (continued)
PARAMETER
Minimum input voltage for valid RESET
Trip threshold voltage
Hysteresis voltage
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I
= 300 μA
1.1
V
O(RESET)
V
decreasing
92
98
%V
%V
V
O
O
Measured at V
0.5
O
O
Reset
Output low voltage
V = 2.7 V,
I
= 1mA
0.15
0.4
1
I
O(RESET)
Leakage current
V
= 5 V
μA
(RESET)
RESET time-out delay
200
0
ms
EN = 0 V
EN = V
−1
−1
1
1
Input current (EN)
μA
I
I
O
I
O
= 500 mA,
= 500 mA,
T = 25°C
169
J
Dropout voltage (see Note 4)
TPS77533
mV
T = −55°C to 125°C
J
287
NOTE 4: IN voltage equals V (typ) − 100 mV; TPS77515, TPS77516, TPS77518, and TPS77525 dropout voltage limited by input voltage range
O
limitations (i.e., TPS77533 input voltage needs to drop to 3.2 V for purpose of this test).
TY
PICAL CHARACTERISTICS
Table of Graphs
FIGURE
vs Output current
vs Free-air temperature
vs Free-air temperature
vs Frequency
2, 3, 4
5, 6, 7
8
V
Output voltage
O
Ground current
Power supply ripple rejection
Output spectral noise density
Output impedance
9
vs Frequency
10
Z
o
vs Frequency
11
vs Input voltage
12
V
DO
Dropout voltage
vs Free-air temperature
vs Output voltage
13
Input voltage (min)
14
Line transient response
Load transient response
Output voltage
15, 17
16, 18
19
V
O
vs Time
Equivalent series resistance (ESR)
vs Output current
21 − 24
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
TYPICAL CHARACTERISTICS
TPS77x33
TPS77x15
OUTPUT VOLTAGE
vs
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
OUTPUT CURRENT
1.4985
1.4980
1.4975
1.4970
1.4965
1.4960
3.2835
3.2830
V = 2.7 V
V = 4.3 V
I
I
T
A
= 25°C
T
A
= 25°C
3.2825
3.2820
3.2815
3.2810
3.2805
3.2800
1.4955
1.4950
0
0.1
0.2
0.3
0.4
0.5
0
0.1
0.2
0.3
0.4
0.5
I
O
− Output Current − A
I
O
− Output Current − A
Figure 2
Figure 3
TPS77x25
OUTPUT VOLTAGE
vs
TPS77x33
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
FREE-AIR TEMPERATURE
2.4960
2.4955
2.4950
2.4945
3.32
3.31
V = 3.5 V
I
V = 4.3 V
I
T
A
= 25°C
3.30
3.29
3.28
3.27
3.26
3.25
I
O
= 500 mA
2.4940
2.4935
2.4930
I
= 1 mA
O
2.4925
2.4920
0
0.1
0.2
0.3
0.4
0.5
−60 −40 −20
T
0
20 40 60 80 100 120 140
I
O
− Output Current − A
− Free-Air Temperature − °C
A
Figure 4
Figure 5
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
TYPICAL CHARACTERISTICS
TPS77x15
OUTPUT VOLTAGE
vs
TPS77x25
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
1.515
2.515
2.510
2.505
2.500
2.495
2.490
V = 3.5 V
I
V = 2.7 V
I
1.510
1.505
1.500
1.495
1.490
1.485
I
O
= 500 mA
I
O
= 500 mA
I
O
= 1 mA
I
O
= 1 mA
2.485
2.480
−60 −40 −20
T
0
20 40 60 80 100 120 140
−60 −40 −20
T
0
20
40
60
80 100 120
− Free-Air Temperature − °C
− Free-Air Temperature − °C
A
A
Figure 6
Figure 7
TPS77xxx
GROUND CURRENT
vs
TPS77x33
POWER SUPPLY RIPPLE REJECTION
vs
FREE-AIR TEMPERATURE
FREQUENCY
90
100
95
90
85
80
75
V = 4.3 V
I
V = 2.7 V
80
70
I
C = 10 μF
o
T
A
= 25°C
60
50
40
30
20
I
O
= 1 mA
I
O
= 500 mA
10
0
−10
1
2
3
4
5
6
−60 −40 −20
T
0
20 40 60 80 100 120 140
10
10
10
10
10
10
− Free-Air Temperature − °C
f − Frequency − Hz
A
Figure 8
Figure 9
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
TYPICAL CHARACTERISTICS
TPS77x33
OUTPUT IMPEDANCE
vs
TPS77x33
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
FREQUENCY
−5
−6
0
10
10
V = 4.3 V
I
V = 4.3 V
I
C = 10 μF
C = 10 μF
o
o
T
= 25°C
T
= 25°C
A
A
I
O
= 1 mA
I
O
= 7 mA
10
−1
10
I
O
= 500 mA
−7
−8
10
I
= 500 mA
O
10
−2
10
2
3
4
5
1
2
3
4
5
6
10
10
10
10
10
10
10
10
10
10
f − Frequency − kHz
f − Frequency − Hz
Figure 10
Figure 11
TPS77x33
DROPOUT VOLTAGE
vs
TPS77x01
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
INPUT VOLTAGE
3
2
1
350
300
10
I
O
= 500 mA
C = 10 μF
o
10
10
10
I
= 500 mA
O
250
200
150
100
50
T
A
= 125°C
T
= 25°C
A
I
O
= 10 mA
0
T
A
= −40°C
−1
10
10
I
O
= 0 mA
−2
0
2.5
3
3.5
4
4.5
5
−60 −40 −20
0
20 40 60 80 100 120 140
V − Input Voltage − V
I
T
A
− Free-Air Temperature − °C
Figure 12
Figure 13
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
TYPICAL CHARACTERISTICS
INPUT VOLTAGE (MIN)
TPS77x15
vs
LINE TRANSIENT RESPONSE
OUTPUT VOLTAGE
4
I
O
= 0.5 A
3.7
2.7
T
= 25°C
A
T
A
= 125°C
3
T
A
= −40°C
10
0
2.7
C = 10 μF
o
−10
T
= 25°C
A
2
1.5 1.75
2
2.25 2.5 2.75
3
3.25 3.5
0
20 40 60 80 100 120 140 160 180 200
V
O
− Output Voltage − V
t − Time − μs
Figure 14
Figure 15
TPS77x15
TPS77x33
LOAD TRANSIENT RESPONSE
LINE TRANSIENT RESPONSE
C = 2x47 μF
ESR = 1/2x100 mΩ
o
C = 10 μF
o
T
= 25°C
50
0
A
V
V
= 1.5 V
= 2.7 V
O
IN
5.3
−50
4.3
10
500
0
0
−10
0
20 40 60 80 100 120 140 160 180 200
0
20 40 60 80 100 120 140 160 180 200
t − Time − μs
t − Time − μs
Figure 16
Figure 17
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
TYPICAL CHARACTERISTICS
TPS77x33
OUTPUT VOLTAGE
TPS77x33
vs
LOAD TRANSIENT RESPONSE
TIME (AT STARTUP)
4
C = 2x47 μF
o
C = 10 μF
o
ESR = 1/2x100 mΩ
O
V = 4.3 V
I
I
O
= 500 mA
50
0
3
2
V
= 3.3 V
T
A
= 25°C
−50
1
0
500
0
0
20 40 60 80 100 120 140 160 180 200
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
t − Time − ms
1
t − Time − μs
Figure 18
Figure 19
To Load
IN
V
I
OUT
+
R
C
L
o
R
EN
GND
ESR
Figure 20. Test Circuit for Typical Regions of Stability (Figures 21 through 24) (Fixed Output Options)
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE†
vs
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE†
vs
OUTPUT CURRENT
OUTPUT CURRENT
10
10
Region of Instability
Region of Instability
1
1
Region of Stability
Region of Stability
V
= 3.3 V
O
o
V
= 3.3 V
O
o
C = 4.7 μF
C = 4.7 μF
V = 4.3 V
I
A
V = 4.3 V
I
T
= 25°C
T = 125°C
J
0.1
0.1
0
100
200
300
400
500
0
100
200
300
400
500
I
O
− Output Current − mA
I
O
− Output Current − mA
Figure 21
Figure 22
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE†
vs
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE†
vs
OUTPUT CURRENT
OUTPUT CURRENT
10
10
Region of Instability
Region of Instability
1
1
Region of Stability
Region of Stability
V
= 3.3 V
O
o
V
= 3.3 V
O
o
C = 22 μF
C = 22 μF
V = 4.3 V
I
A
V = 4.3 V
I
T
= 25°C
T = 125°C
J
0.1
0.1
0
100
200
300
400
500
0
100
200
300
400
500
I
O
− Output Current − mA
I
O
− Output Current − mA
Figure 23
Figure 24
†
Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to C .
o
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
APPLICATION INFORMATION
The TPS775xx family includes five fixed-output voltage regulators (1.5 V, 1.6 V, 1.8 V, 2.5 V, and 3.3 V), and an
adjustable regulator, the TPS77501 (adjustable from 1.5 V to 5.5 V).
device operation
The TPS775xx feature very low quiescent current, which remains virtually constant even with varying loads.
Conventional LDO regulators use a pnp pass element, the base current of which is directly proportional to the load
current through the regulator (I = I /β). The TPS775xx use a PMOS transistor to pass current; because the gate
B
C
of the PMOS is voltage driven, operating current is low and invariable over the full load range.
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into dropout.
The resulting drop in β forces an increase in I to maintain the load. During power up, this translates to large start-up
B
currents. Systems with limited supply current may fail to start up. In battery-powered systems, it means rapid battery
discharge when the voltage decays below the minimum required for regulation. The TPS775xx quiescent currents
remain low even when the regulator drops out, eliminating both problems.
The TPS775xx family also features a shutdown mode that places the output in the high-impedance state (essentially
equal to the feedback-divider resistance) and reduces quiescent current to 2 μA. If the shutdown feature is not used,
EN should be tied to ground.
minimum load requirements
The TPS775xx family is stable even at zero load; no minimum load is required for operation.
FB—pin connection (adjustable version only)
The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option . The output voltage
is sensed through a resistor divider network to close the loop as it is shown in Figure 26. Normally, this connection
should be as short as possible; however, the connection can be made near a critical circuit to improve performance
at that point. Internally, FB connects to a high-impedance wide-bandwidth amplifier and noise pickup feeds through
to the regulator output. Routing the FB connection to minimize/avoid noise pickup is essential.
external capacitor requirements
An input capacitor is not usually required; however, a ceramic bypass capacitor (0.047 μF or larger) improves load
transient response and noise rejection if the TPS775xx is located more than a few inches from the power supply.
A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load transients with
fast rise times are anticipated.
Like all low dropout regulators, the TPS775xx require an output capacitor connected between OUT and GND to
stabilize the internal control loop. The minimum recommended capacitance value is 10 μF and the ESR (equivalent
series resistance) must be between 50 mΩ and 1.5 Ω. Capacitor values 10 μF or larger are acceptable, provided
the ESR is less than 1.5 Ω. Solid tantalum electrolytic, aluminum electrolytic, and multilayer ceramic capacitors are
all suitable, provided they meet the requirements described previously.
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
APPLICATION INFORMATION
external capacitor requirements (continued)
6
7
16
RESET
RESET
V
I
IN
IN
250 kΩ
14
13
V
OUT
OUT
O
C1
0.1 μF
5
EN
C
+
o
10 μF
GND
3
Figure 25. Typical Application Circuit (Fixed Versions)
programming the TPS77501 adjustable LDO regulator
The output voltage of the TPS77501 adjustable regulator is programmed using an external resistor divider as shown
in Figure 26. The output voltage is calculated using:
R1
ǒ1 )
Ǔ
(1)
V
+ V
O
ref
R2
Where:
V
ref
= 1.1834 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 10-μA divider current. Lower value resistors can be used
but offer no inherent advantage and waste more power. Higher values should be avoided as leakage currents at
FB increase the output voltage error. The recommended design procedure is to choose
R2 = 110 kΩ to set the divider current at approximately 10 μA and then calculate R1 using:
V
O
R1 +
ǒ
* 1
Ǔ
R2
(2)
V
ref
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS77501
OUTPUT
VOLTAGE
R1
121
R2
110
UNIT
RESET
Reset Output
250 kΩ
V
I
IN
0.1 μF
2.5 V
3.3 V
kΩ
kΩ
kΩ
kΩ
≥ 1.7 V
196
226
332
110
110
110
EN
OUT
V
O
3.6 V
≤ 0.9 V
R1
4.75 V
C
o
FB / NC
GND
R2
Figure 26. TPS77501 Adjustable LDO Regulator Programming
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
ꢀ
SGLS010B − MARCH 2003 − REVISED JUNE 2010
APPLICATION INFORMATION
reset indicator
The TPS775xx features a RESET output that can be used to monitor the status of the regulator. The internal
comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal regulated
value, the RESET output transistor turns on, taking the signal low. The open-drain output requires a pullup resistor.
If not used, it can be left floating. RESET can be used to drive power-on reset circuitry or as a low-battery indicator.
RESET does not assert itself when the regulated output voltage falls outside the specified 2% tolerance, but instead
reports an output voltage low relative to its nominal regulated value (refer to timing diagram for start-up sequence).
regulator protection
The TPS775xx PMOS-pass transistors have a built-in back diode that conducts reverse currents when the input
voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the input
and is not internally limited. When extended reverse voltage is anticipated, external limiting may be appropriate.
The TPS775xx also feature internal current limiting and thermal protection. During normal operation, the TPS775xx
limit output current to approximately 1.7 A. When current limiting engages, the output voltage scales back linearly
until the overcurrent condition ends. While current limiting is designed to prevent gross device failure, care should
be taken not to exceed the power dissipation ratings of the package. If the temperature of the device exceeds
150°C(typ), thermal-protection circuitry shuts it down. Once the device has cooled below 130°C(typ), regulator
operation resumes.
power dissipation and junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
should be restricted to 125°C under normal operating conditions. This restriction limits the power dissipation the
regulator can handle in any given application. To ensure the junction temperature is within acceptable limits,
calculate the maximum allowable dissipation, P
, and the actual dissipation, P , which must be less than or
D(max)
D
equal to P
.
D(max)
The maximum-power-dissipation limit is determined using the following equation:
T max * T
J
A
P
+
D(max)
R
qJA
Where:
T max is the maximum allowable junction temperature.
J
R
is the thermal resistance junction-to-ambient for the package, i.e., 32.6°C/W for the 20-terminal
θ
JA
PWP with no airflow.
T is the ambient temperature.
A
The regulator dissipation is calculated using:
+ ǒVI * V
Ǔ
P
I
D
O
O
Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the thermal
protection circuit.
17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
16-Jun-2010
PACKAGING INFORMATION
Status (1)
Eco Plan (2)
MSL Peak Temp (3)
Samples
Orderable Device
Package Type Package
Drawing
Pins
Package Qty
Lead/
Ball Finish
(Requires Login)
TPS77501MPWPREP
TPS77501MPWPREPG4
TPS77515MPWPREP
TPS77518MPWPREP
TPS77525MPWPREP
TPS77533MPWPREP
V62/03631-01XE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
HTSSOP
HTSSOP
HTSSOP
HTSSOP
HTSSOP
HTSSOP
HTSSOP
HTSSOP
HTSSOP
HTSSOP
HTSSOP
PWP
PWP
PWP
PWP
PWP
PWP
PWP
PWP
PWP
PWP
PWP
20
20
20
20
20
20
20
20
20
20
20
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
Contact TI Distributor
or Sales Office
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
Contact TI Distributor
or Sales Office
Green (RoHS
& no Sb/Br)
Contact TI Distributor
or Sales Office
Green (RoHS
& no Sb/Br)
Contact TI Distributor
or Sales Office
Green (RoHS
& no Sb/Br)
Contact TI Distributor
or Sales Office
Green (RoHS
& no Sb/Br)
Contact TI Distributor
or Sales Office
Green (RoHS
& no Sb/Br)
Contact TI Distributor
or Sales Office
V62/03631-02XE
Green (RoHS
& no Sb/Br)
Contact TI Distributor
or Sales Office
V62/03631-04XE
Green (RoHS
& no Sb/Br)
Contact TI Distributor
or Sales Office
V62/03631-05XE
Green (RoHS
& no Sb/Br)
Contact TI Distributor
or Sales Office
V62/03631-06XE
Green (RoHS
& no Sb/Br)
Contact TI Distributor
or Sales Office
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
16-Jun-2010
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF TPS77501-EP, TPS77515-EP, TPS77518-EP, TPS77525-EP, TPS77533-EP :
Catalog: TPS77501, TPS77515, TPS77518, TPS77525, TPS77533
•
Automotive: TPS77501-Q1, TPS77515-Q1, TPS77518-Q1, TPS77525-Q1, TPS77533-Q1
•
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
•
Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
•
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Jul-2012
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
TPS77501MPWPREP HTSSOP PWP
TPS77515MPWPREP HTSSOP PWP
TPS77518MPWPREP HTSSOP PWP
TPS77525MPWPREP HTSSOP PWP
TPS77533MPWPREP HTSSOP PWP
20
20
20
20
20
2000
2000
2000
2000
2000
330.0
330.0
330.0
330.0
330.0
16.4
16.4
16.4
16.4
16.4
6.95
6.95
6.95
6.95
6.95
7.1
7.1
7.1
7.1
7.1
1.6
1.6
1.6
1.6
1.6
8.0
8.0
8.0
8.0
8.0
16.0
16.0
16.0
16.0
16.0
Q1
Q1
Q1
Q1
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Jul-2012
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
TPS77501MPWPREP
TPS77515MPWPREP
TPS77518MPWPREP
TPS77525MPWPREP
TPS77533MPWPREP
HTSSOP
HTSSOP
HTSSOP
HTSSOP
HTSSOP
PWP
PWP
PWP
PWP
PWP
20
20
20
20
20
2000
2000
2000
2000
2000
367.0
367.0
367.0
367.0
367.0
367.0
367.0
367.0
367.0
367.0
38.0
38.0
38.0
38.0
38.0
Pack Materials-Page 2
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