TPS7A37_16 Datasheet, PDF (1/31 Pages) Texas Instruments – High-Accuracy, 1-A, Low-Dropout Regulator With Reverse Current Protection

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TPS7A37
SBVS220B – MARCH 2013 – REVISED AUGUST 2015
TPS7A37 1% High-Accuracy, 1-A, Low-Dropout Regulator With Reverse Current
Protection
1 Features
•1 Stable with 1-μF or Larger Ceramic Output
Capacitor
• Input Voltage Range: 2.2 V to 5.5 V
• Ultralow Dropout Voltage:
– 200-mV Maximum at 1 A
• Excellent Load Transient Response—Even With
Only 1-μF Output Capacitor
• NMOS Topology Delivers Low Reverse Leakage
Current
• Excellent Accuracy:
– 0.23% Nominal Accuracy
– 1% Overall Accuracy Over Line, Over Load,
and Over Temperature
• Less Than 20-nA typical I_Q in Shutdown Mode
• Thermal Shutdown and Current Limit for Fault
Protection
2 Applications
• Point of Load Regulation for DSPs, FPGAs,
ASICs, and Microprocessors
• Post-Regulation for Switching Supplies
• Portable and Battery-Powered Equipment
SPACE
Typical Application Circuit (Adjustable Version)
Optional
V_IN
IN
OUT
V_OUT
TPS7A3701
1.0 mF
EN GND FB
ON
OFF
3 Description
The TPS7A37 family of linear low-dropout (LDO)
voltage regulators uses an NMOS pass element in a
voltage-follower configuration. This topology is
relatively insensitive to output capacitor value and
ESR, allowing a wide variety of load configurations.
Load transient response is excellent, even with a
small 1-μF ceramic output capacitor. The NMOS
topology also allows very low dropout.
The TPS7A37 family uses an advanced BiCMOS
process to yield high precision while delivering very
low dropout voltages and low ground pin current.
Current consumption, when not enabled, is under 20
nA and ideal for portable applications. These devices
are protected by thermal shutdown and foldback
current limit.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS7A37
WSON (6)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit (Fixed Version)
V_IN
IN
OUT
V_OUT
TPS7A37xx
EN GND
ON
OFF
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.