TPS736 Single Output LDO, 400mA, Adj.(1.2 to 5.5V), Cap free, Low Noise, Reverse Current Protection | TI.com

TPS736 (ACTIVE) Single Output LDO, 400mA, Adj.(1.2 to 5.5V), Cap free, Low Noise, Reverse Current Protection

 

Recommended alternative parts

  • TLV758P  -  500-mA LDO regulator with lower IQ
  • TPS7A90  -  500-mA, low-noise (4.7-µVrms) LDO regulator in a small package (2.5 mm by 2.5 mm)
  • TPS745  -  500-mA adjustable output LDO regulator with power good and lower dropout

Description

The TPS736xx family of low-dropout (LDO) linear 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. It also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS736xx 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 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.

Features

  • Stable with No Output Capacitor or Any Value
    or Type of Capacitor
  • Input Voltage Range of 1.7 V to 5.5 V
  • Ultra-Low Dropout Voltage: 75 mV typ
  • Excellent Load Transient Response–with or
    without Optional Output Capacitor
  • New NMOS Topology Delivers Low Reverse Leakage
    Current
  • Low Noise: 30 µVRMS typ
    (10 Hz to 100 kHz)
  • 0.5% Initial Accuracy
  • 1% Overall Accuracy Over Line, Load, and
    Temperature
  • Less Than 1 µA max IQ in Shutdown
    Mode
  • Thermal Shutdown and Specified Min/Max Current
    Limit Protection
  • Available in Multiple Output Voltage Versions
    • Fixed Outputs of 1.20 V to 5.0 V
    • Adjustable Output from 1.20 V to 5.5 V
    • 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

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Thermal calculator

Estimate the LDO IC temperature at your design conditions:
Part number
    Range
Vin  V
Vout  V
Iout  A
Ambient temp  °C
Package option
Voltage option
PCB construction
Enhanced Thermal = single thermal spreading plane of 1 oz Cu
Minimum Thermal = single thermal spreading plane of 1/2 oz Cu
View the user guide for more details.

Junction temperature vs. PCB copper coverage area
These are estimated power dissipation and thermal results.
Care must be taken to ensure that device junction temperature
does not exeed the maximum ratings as indicated in the datasheet.

This calculator uses the PCB copper area to estimate the device junction temperature. See notes on usage and calculation method.

Parametrics

Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS736 Order now Adjustable Output
Fixed Output    
0.4     5.5     1.7     5.4     1.2     1.25
1.5
1.6
1.8
1.9
2.5
3
3.2
3.3
4.3    
SON | 8
SOT-223 | 6
SOT-23 | 5    
Enable
Foldback Overcurrent Protection
Reverse Current Protection    
1     -40 to 125     53     30     0.75 | 1ku     Catalog     32     1     75     0.4     See datasheet (SON)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
TPS731 Order now Adjustable Output
Fixed Output    
0.15     5.5     1.7     5.5     1.2     1.25
1.5
1.8
2.5
3
3.1
3.2
3.3
5    
SOT-23 | 5     Enable
Foldback Overcurrent Protection
Reverse Current Protection    
1     -40 to 125     207     30     0.38 | 1ku     Catalog     32     1     30     0.4     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
TPS732 Order now Adjustable Output
Fixed Output    
0.25     5.5     1.7     5.5     1.2     1.3
1.5
1.6
1.8
1.9
2.5
3
3.3
5    
SON | 8
SOT-223 | 6
SOT-23 | 5    
Enable
Foldback Overcurrent Protection
Reverse Current Protection    
1     -40 to 125     53     30     0.51 | 1ku     Catalog     32     1     40     0.4     See datasheet (SON)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)