TPS737_15 Datasheet, PDF (1/37 Pages) Texas Instruments – TPS737xx 1-A Low-Dropout Regulator With Reverse Current Protection

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TPS737
SBVS067Q – JANUARY 2006 – REVISED MAY 2015
TPS737xx 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: 130 mV Typical at 1 A
• Excellent Load Transient Response—Even With
Only 1-μF Output Capacitor
• NMOS Topology Delivers Low Reverse Leakage
Current
• 1% Initial Accuracy
• 3% Overall Accuracy Over Line, Load, and
Temperature
• Less Than 20 nA Typical I_Q in Shutdown Mode
• Thermal Shutdown and Current Limit for Fault
Protection
• Available in Multiple Output Voltage Versions
– Adjustable Output: 1.20 V to 5.5 V
– Custom Outputs Available Using Factory
Package-Level Programming
2 Applications
• Point-of-Load Regulation for DSPs, FPGAs,
ASICs, and Microprocessors
• Post-Regulation for Switching Supplies
• Portable and Battery-Powered Equipment
space
3 Description
The TPS737xx 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 TPS737xx 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 less than
20 nA and ideal for portable applications. These
devices are protected by thermal shutdown and
foldback current limit.
For applications that require higher output voltage
accuracy, consider TI's TPS7A37xx family of 1%
overall accuracy, 1-A low-dropout voltage regulators.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
VSON (8)
3.00 mm × 3.00 mm
TPS737xx
SOT-223 (6)
6.50 mm × 3.50 mm
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
Optional
V_IN
IN
OUT
TPS737xx
EN GND FB
OFF
ON
V_OUT
1.0mF
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.