TPS732-Q1 Automotive Single Output LDO, 250mA, Low Noise, Fast Transient Response |


Automotive Single Output LDO, 250mA, Low Noise, Fast Transient Response

Automotive Single Output LDO, 250mA, Low Noise, Fast Transient Response - TPS732-Q1


The TPS732-Q1 family of low-dropout (LDO) voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration. This topology is stable using output capacitors with low ESR, and even allows operation without a capacitor. The topology also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS732-Q1 family of devices uses an advanced BiCMOS process to yield high precision while delivering low dropout voltages and low ground pin current. Current consumption, when not enabled, is under 1 µA and ideal for portable applications. The extremely low output noise (30 µVRMS with 0.1-µF CNR) is ideal for powering VCOs. These devices are protected by thermal shutdown and foldback current limit.


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • Device Temperature Grade 0: –40°C to 150°C
      Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C4B
    • Device MM Classification Level M2
  • Stable With No Output Capacitor or Any Value or
    Type of Capacitor
  • Input Voltage Range: 1.7 V to 5.5 V
  • Ultra-Low Dropout Voltage: 40-mV Typical at
    250 mA
  • Excellent Load Transient Response—With or
    Without Optional Output Capacitor
  • New NMOS Topology Provides Low Reverse
    Leakage Current
  • Low Noise: 30-µVRMS Typical (10 kHz to 100 kHz)
  • 0.5% Initial Accuracy
  • 1% Overall Accuracy (Line, Load, and
  • Less Than 1-µA Maximum IQ in Shutdown Mode
  • Thermal Shutdown and Specified Minimum and
    Maximum Current Limit Protection
  • Available in Multiple Output Voltage Versions
    • Fixed Outputs of 1.2 V, 1.5 V, 1.6 V, 1.8 V,
      2.5 V, 3 V, 3.3 V, and 5 V
    • Adjustable Outputs From 1.2 V to 5.5 V
    • Custom Outputs Available

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Parametrics Compare all products in Single Channel LDO

Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Fixed Output Options (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Operating Temperature Range (C)
TPS732-Q1 TPS73433-Q1 TPS736-Q1
0.25     0.25     0.4    
Adjustable Output
Fixed Output    
Fixed Output     Adjustable Output
Fixed Output    
1.7     2.7     1.7    
5.5     6.5     5.5    
3.3     1.8    
1.2     3.3     1.2    
5.4     3.3     5.4    
0.4     0.04     0.4    
40     125     75    
1     2     1    
30     28     30    
16     24     16    
Cap Free
Ceramic     Cap Free
Automotive     Automotive     Automotive    
-40 to 125     -40 to 105     -40 to 125    
5SOT-23-THIN     5SOT-23

Other qualified versions of TPS732-Q1

Version Part Number Definition
Catalog TPS732 TI's standard catalog product

WEBENCH® Designer TPS732-Q1

  Min   Max Range
Vin  V 1.7 to 5.5V
Product Option
Vout  V
Iout  A ≤ 0.25A
Ambient Temp  °C -40.0 to 125.0°C