TPS737 Single Output LDO, 1A, Adj. (1.2 to 5.0V), Reverse Current Protection |


Single Output LDO, 1A, Adj. (1.2 to 5.0V), Reverse Current Protection


Recommended alternative parts

  • TLV757P  -  1-A general-purpose fixed output LDO regulator with lower IQ
  • TPS746  -  1-A general-purpose adjustable-output LDO regulator with power-good
  • TLV759P  -  1-A general-purpose adjustable-output LDO regulator with wider input voltage range, lower IQ & lower dropout


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.


  • Stable With 1-µF or Larger Ceramic Output
  • 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
  • 1% Initial Accuracy
  • 3% Overall Accuracy Over Line, Load, and
  • Less Than 20 nA Typical IQ in Shutdown Mode
  • Thermal Shutdown and Current Limit for Fault
  • Available in Multiple Output Voltage Versions
    • Adjustable Output: 1.20 V to 5.5 V
    • Custom Outputs Available Using Factory
      Package-Level Programming

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Parametrics Compare all products in Linear regulators (LDO)

Output options
Iout (Max) (A)
Vin (Max) (V)
Vin (Min) (V)
Vout (Max) (V)
Vout (Min) (V)
Fixed output options (V)
Package Group
Regulated outputs (#)
Operating temperature range (C)
Thermal Resistance θJA (°C/W)
Noise (uVrms)
Approx. price (US$)
Output capacitor type
PSRR @ 100 KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package size: mm2:W x L (PKG)
TPS737 TPS7A37
Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
1     1    
5.5     5.5    
2.2     2.2    
5.4     5.5    
1.2     1.2    
SON | 8
SOT-223 | 6
WSON | 6    
WSON | 6    
Foldback Overcurrent Protection
Reverse Current Protection    
Foldback Overcurrent Protection
Reverse Current Protection    
1     1    
-40 to 125     -40 to 125    
50     67    
48     32    
0.58 | 1ku     0.66 | 1ku    
Catalog     Catalog    
Ceramic     Ceramic    
33     32    
3     1    
130     130    
0.4     0.4    
See datasheet (SON)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)
See datasheet (WSON)    
See datasheet (WSON)    

Design tool

WEBENCH® Designer TPS737

  Min   Max Range
Vin  V 2.2 to 5.5V
Product Option
Vout  V
Iout  A ≤ 1.0A
Ambient Temp  °C -40.0 to 125.0°C