TPS766 Low Quiescent Current, 250-mA, Low Dropout Voltage Regulators | TI.com

TPS766 (ACTIVE)

Low Quiescent Current, 250-mA, Low Dropout Voltage Regulators

 

Description

This device is designed to have an ultralow quiescent current and be stable with a 4.7-µF capacitor. This combination provides high performance at a reasonable cost.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 250 mA for the TPS76650) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 35 µA over the full range of output current, 0 mA to 250 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA (typ).

Power good (PG) is an active high output that can be used to implement a power-on reset or a low-battery indicator.

The TPS766xx is offered in 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V and 5.0 V fixed voltage versions and in an adjustable version (programmable over the range of 1.25 V to 5.5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS766xx family is available in an 8-pin SOIC package.

Features

  • 250-mA Low Dropout Voltage Regulator
  • Available in 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V,
    3.0 V, 3.3 V, 5.0 V Fixed Output and Adjustable Versions
  • Dropout Voltage to 140 mV (Typ) at 250 mA (TPS76650)
  • Ultralow 35-µA Typical Quiescent Current
  • 3% Tolerance Over Specified Conditions for Fixed Output Versions
  • Open-Drain Power Good
  • 8-Pin SOIC Package
  • Thermal Shutdown Protection

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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)
TPS766 TPS761 TPS76201 TPS763 TPS764 TPS765 TPS769 TPS770
Adjustable Output
Fixed Output    
Fixed Output     Adjustable Output     Adjustable Output
Fixed Output    
Fixed Output     Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
0.25     0.1     0.1     0.15     0.15     0.15     0.1     0.05    
10     16     10     10     10     10     10     10    
2.7     3.7     2.7     2.7     2.7     2.7     2.7     2.7    
5.5     5     5.5     5     3.3     5.5     5.5     5.5    
1.2     3     0.7     1.5     2.5     1.2     1.2     1.2    
1.5
1.8
2.5
2.8
3
3.3
5    
3
3.2
3.3
3.8
5    
  1.6
1.8
2.5
2.7
2.8
3
3.3
3.8
5    
2.5
2.7
2.8
3
3.3    
1.5
1.8
2.5
2.8
3
3.3
5    
1.2
1.5
1.8
2.5
2.7
2.8
3
3.3
5    
1.2
1.5
1.8
2.5
2.7
2.8
3
3.3
5    
SOIC | 8     SOT-23 | 5     SOT-23 | 5     SOT-23 | 5     SOT-23 | 5     SOIC | 8     SOT-23 | 5     SOT-23 | 5    
Enable
Power Good    
Enable     Enable     Enable     Enable     Enable
Power Good    
Enable     Enable    
1     1     1     1     1     1     1     1    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
176     180     180     205     180     176     180     180    
200     190     60     140     50     200     190     190    
0.46 | 1ku     0.44 | 1ku     0.42 | 1ku     0.28 | 1ku     0.33 | 1ku     0.76 | 1ku     0.30 | 1ku     0.39 | 1ku    
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