TLV733P Capacitor-free 300-mA low-dropout (LDO) regulator with foldback current limit for portable devices | TI.com

TLV733P (ACTIVE)

Capacitor-free 300-mA low-dropout (LDO) regulator with foldback current limit for portable devices

 

Recommended alternative parts

  • TLV755P  -  TLV755P is a 500mA FIXED output in 1mm x 1mm package
  • TLV758P  -  TLV758P is a 500mA ADJUSTABLE output LDO with Wider Vin and lower quiescent current

Description

The TLV733 series of low-dropout linear regulators (LDOs) are ultra-small, low quiescent current LDOs that can source 300 mA with good line and load transient performance. These devices provide a typical accuracy of 1%.

The TLV733 series is designed with a modern capacitor-free architecture to ensure stability without an input or output capacitor. The removal of the output capacitor allows for a very small solution size, and can eliminate inrush current at startup. However, the TLV733 series is also stable with ceramic output capacitors if an output capacitor is necessary. The TLV733 also provides foldback current control during device power-up and enabling if an output capacitor is used. This functionality is especially important in battery-operated devices.

The TLV733 provides an active pull-down circuit to quickly discharge output loads when disabled.

The TLV733 series is available in standard DBV (SOT-23) and DQN (X2SON) packages.

Features

  • Input Voltage Range: 1.4 V to 5.5 V
  • Stable Operation With or Without Capacitors
  • Foldback Overcurrent Protection
  • Packages:
    • 1.0-mm × 1.0-mm X2SON (4)
    • SOT-23 (5)
  • Very Low Dropout: 125 mV at 300 mA
    (3.3 VOUT)
  • Accuracy: 1% typical, 1.4% maximum
  • Low IQ: 34 µA
  • Available in Fixed-Output Voltages:
    1.0 V to 3.3 V
  • High PSRR: 50 dB at 1 kHz
  • Active Output Discharge

View more

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 @ 100 KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package size: mm2:W x L (PKG)
TLV733P TLV713P
Fixed Output     Fixed Output    
0.3     0.15    
5.5     5.5    
1.4     1.4    
3.3     3.3    
1     1    
1
1.1
1.2
1.5
1.8
2.5
2.8
2.85
3
3.3    
1
1.1
1.2
1.5
1.8
1.85
2.5
2.8
2.85
3
3.3    
SOT-23 | 5
X2SON | 4    
SOT-23 | 5
X2SON | 4    
Enable
Foldback Overcurrent Protection    
Enable
Foldback Overcurrent Protection    
1     1    
-40 to 125     -40 to 125    
219     249    
120     73    
0.09 | 1ku     0.08 | 1ku    
Catalog     Catalog    
Cap Free
Ceramic    
Cap Free
Ceramic    
28     17    
1.4     1.5    
122     230    
0.034     0.05    
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)
4X2SON: 1 mm2: 1 x 1 (X2SON | 4)    
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)
4X2SON: 1 mm2: 1 x 1 (X2SON | 4)    

Design tool

WEBENCH® Designer TLV733P

  Min   Max Range
Vin  V 1.4 to 5.5V
Product Option
Vout  V
Iout  A ≤ 0.3A
Ambient Temp  °C -40.0 to 125.0°C