TPS732 Cap-Free, NMOS, 250mA Low Dropout Regulator with Reverse Current Protection | TI.com

TPS732 (ACTIVE)

Cap-Free, NMOS, 250mA Low Dropout Regulator with Reverse Current Protection

Cap-Free, NMOS, 250mA Low Dropout Regulator with Reverse Current Protection - TPS732
 

Description

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

The TPS732 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 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: 1.7 V to 5.5 V
  • Ultralow Dropout Voltage: 40 mV Typical at
    250 mA
  • Excellent Load Transient Response–With or
    Without Optional Output Capacitor
  • 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
    Temperature)
  • Less Than 1-µA Maximum IQ in Shutdown Mode
  • Thermal Shutdown and Specified Min and Max
    Current Limit Protection
  • Available in Multiple Output Voltage Versions
    • Fixed Outputs of 1.2 V to 5 V
    • Adjustable Outputs from 1.2 V to 5.5 V
    • Custom Outputs Available
  • APPLICATIONS
    • Portable and 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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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
Features
Regulated Outputs (#)
Operating Temperature Range (C)
Thermal Resistance θJA (°C/W)
Noise (uVrms)
Approx. Price (US$)
Rating
Output Capacitor Type
PSRR @ 100KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package Size: mm2:W x L (PKG)
TPS732 TPS731 TPS736
Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
0.25     0.15     0.4    
5.5     5.5     5.5    
1.7     1.7     1.7    
5.5     5.5     5.4    
1.2     1.2     1.2    
1.3
1.5
1.6
1.8
1.9
2.5
3
3.3
5    
1.25
1.5
1.8
2.5
3
3.1
3.2
3.3
5    
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    
SOT-23 | 5     SON | 8
SOT-223 | 6
SOT-23 | 5    
Enable
Foldback Overcurrent Protection
Reverse Current Protection    
Enable
Foldback Overcurrent Protection
Reverse Current Protection    
Enable
Foldback Overcurrent Protection
Reverse Current Protection    
1     1     1    
-40 to 125     -40 to 125     -40 to 125    
53     207     53    
30     30     30    
0.51 | 1ku     0.38 | 1ku     0.75 | 1ku    
Catalog     Catalog     Catalog    
Cap Free
Ceramic    
Cap Free
Ceramic    
Cap Free
Ceramic    
32     32     32    
1     1     1    
40     30     75    
0.4     0.4     0.4    
See datasheet (SON)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)    
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)     See datasheet (SON)
6SOT-223: 46 mm2: 7.06 x 6.5 (SOT-223 | 6)
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)    

WEBENCH® Designer TPS732

  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