VOLTAGE REGULATOR. TPS76501-Q1 Datasheet

TPS76501-Q1 REGULATOR. Datasheet pdf. Equivalent

TPS76501-Q1 Datasheet
Recommendation TPS76501-Q1 Datasheet
Part TPS76501-Q1
Description 150-mA LOW-DROPOUT VOLTAGE REGULATOR
Feature TPS76501-Q1; www.ti.com TPS76501-Q1 ULTRALOW QUIESCENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATOR SLVS800 – DE.
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Datasheet
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etcTI TPS76501-Q1
www.ti.com
TPS76501-Q1
ULTRALOW QUIESCENT CURRENT 150-mA LOW-DROPOUT
VOLTAGE REGULATOR
SLVS800 – DECEMBER 2007
FEATURES
1
Qualified for Automotive Applications
150-mA Low-Dropout (LDO) Voltage Regulator
Dropout Voltage to 85 mV (Typ) at 150 mA
(TPS76550)
Ultra-Low 35-µA (Typ) Quiescent Current
3% Tolerance Over Specified Conditions for
Fixed-Output Versions
Open-Drain Power Good Output
Thermal Shutdown Protection
FB
PG
GND
EN
D PACKAGE
(TOP VIEW)
1
8
2
7
3
6
4
5
OUT
OUT
IN
IN
DESCRIPTION/ORDERING INFORMATION
This device is designed to have an ultra-low quiescent current and be stable with a 4.7-µF capacitor. 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 85 mV at
an output current of 150 mA for the TPS76550) 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 35 µA over the full range of output current, 0 mA to 150 mA). These two key
specifications yield a significant improvement in operating life for battery-powered systems. This LDO also
features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the
quiescent current to less than 1 µA (typ).
Power good (PG) is an active-high output, which can be used to implement a power-on reset or a low-battery
indicator.
TPS76533
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
100
VI = 3.2 V
10−1
IO = 150 mA
IO = 50 mA
TPS76533
GROUND CURRENT
vs
LOAD CURRENT
35.0
VO = 3.3 V
34.9 TA = 25°C
34.8
34.7
34.6
34.5
10−2
IO = 10 mA
34.4
34.3
10−3
−50 −25 0
25 50 75 100 125 150
TA − Free-Air Temperature − °C
34.2
34.1
34.0
0
25
50
75
100 125 150
IL − Load Current − mA
1
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated



etcTI TPS76501-Q1
TPS76501-Q1
ULTRALOW QUIESCENT CURRENT 150-mA LOW-DROPOUT
VOLTAGE REGULATOR
SLVS800 – DECEMBER 2007
www.ti.com
The TPS765xx is offered in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3-V, 3.3-V and 5-V fixed-voltage versions and in an
adjustable version (programmable over the range of 1.25 V to 5.5 V). Output voltage tolerance is specified as a
maximum of 3% over line, load, and temperature ranges. The TPS765xx family is available in an 8-pin SOIC
package.
TA
–40°C to 125°C
VO (TYP)
Adjustable
ORDERING INFORMATION(1)
PACKAGE (2)
ORDERABLE PART NUMBER
SOIC – D
Reel of 2500 TPS76501QDRQ1
TOP-SIDE MARKING
76501Q
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
VI
0.1 µF
TPS765xx
5
IN
6
IN
4
EN
2
PG
NC/FB 1
7
OUT
8
OUT
GND
3
PG
250 k
VO
CO
+
4.7 µF
300 m
Figure 1. Typical Application Configuration for Fixed Output Options
FUNCTIONAL BLOCK DIAGRAM – ADJUSTABLE-VOLTAGE VERSION
IN
EN
+
PG
OUT
+
V = 1.224 V
ref
R1
FB
R2
GND
External to the device
2
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Copyright © 2007, Texas Instruments Incorporated



etcTI TPS76501-Q1
www.ti.com
TPS76501-Q1
ULTRALOW QUIESCENT CURRENT 150-mA LOW-DROPOUT
VOLTAGE REGULATOR
SLVS800 – DECEMBER 2007
FUNCTIONAL BLOCK DIAGRAM – FIXED-VOLTAGE VERSION
IN
EN
Vref = 1.224 V
_
+
+
_
PG
OUT
R1
R2
TERMINAL
NAME
NO.
EN
1
FB
2
GND
3
IN
4, 5
OUT
6, 7
PG
8
GND
TERMINAL FUNCTIONS
I/O
DESCRIPTION
I
Enable
I
Feedback voltage
Regulator ground
I
Input voltage
O
Regulated output voltage
O
Power good output
Copyright © 2007, Texas Instruments Incorporated
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