Data Sheet

DCQPACKAGE
SOT223
(TOPVIEW)
DBVPACKAGE
SOT23
(TOPVIEW)
IN
GND
EN
NR/FB
OUT
1
2
3
4
5
1
IN
OUT
GND
NR/FB
EN
TABISGND
6
IN
N/C
N/C
EN
8
7
6
5
OUT
N/C
NR/FB
GND
1
2
3
4
DRB PACKAGE
3mmx 3mmSON
(TOP VIEW)
2 3 54
TPS736xx
GNDEN NR
IN OUT
V
IN
V
OUT
Optional Optional
Optional
ON
OFF
TypicalApplicationCircuitforFixed-VoltageVersions
TPS736xx
www.ti.com
SBVS038T SEPTEMBER 2003REVISED AUGUST 2010
Cap-Free, NMOS, 400mA Low-Dropout Regulator
with Reverse Current Protection
1
FEATURES
DESCRIPTION
2
Stable with No Output Capacitor or Any Value
or Type of Capacitor
The TPS736xx family of low-dropout (LDO) linear
voltage regulators uses a new topology: an NMOS
Input Voltage Range of 1.7V to 5.5V
pass element in a voltage-follower configuration. This
Ultra-Low Dropout Voltage: 75mV typ
topology is stable using output capacitors with low
Excellent Load Transient Response—with or
ESR, and even allows operation without a capacitor.
without Optional Output Capacitor
It also provides high reverse blockage (low reverse
current) and ground pin current that is nearly constant
New NMOS Topology Delivers Low Reverse
over all values of output current.
Leakage Current
Low Noise: 30mV
RMS
typ (10Hz to 100kHz)
The TPS736xx uses an advanced BiCMOS process
to yield high precision while delivering very low
0.5% Initial Accuracy
dropout voltages and low ground pin current. Current
1% Overall Accuracy Over Line, Load, and
consumption, when not enabled, is under 1mA and
Temperature
ideal for portable applications. The extremely low
Less Than 1mA max I
Q
in Shutdown Mode
output noise (30mV
RMS
with 0.1mF C
NR
) is ideal for
powering VCOs. These devices are protected by
Thermal Shutdown and Specified Min/Max
thermal shutdown and foldback current limit.
Current Limit Protection
space
Available in Multiple Output Voltage Versions
Fixed Outputs of 1.20V to 5.0V
Adjustable Output from 1.20V to 5.5V
Custom Outputs Available
APPLICATIONS
Portable/Battery-Powered Equipment
Post-Regulation for Switching Supplies
Noise-Sensitive Circuitry such as VCOs
Point of Load Regulation for DSPs, FPGAs,
ASICs, and Microprocessors
space
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.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2003–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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