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

TPS766 (ACTIVE)

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

Low Quiescent Current, 250-mA, Low Dropout Voltage Regulators - TPS766
 

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 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
Rating
Operating Temperature Range (C)
Pin/Package
TPS766 TPS761 TPS76201 TPS763 TPS764 TPS765 TPS769 TPS770
0.25     0.1     0.1     0.15     0.15     0.15     0.1     0.05    
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    
2.7     3.7     2.7     2.7     2.7     2.7     2.7     2.7    
10     16     10     10     10     10     10     10    
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    
1.2     3     0.7     1.5     2.5     1.2     1.2     1.2    
5.5     5     5.5     5     3.3     5.5     5.5     5.5    
0.03     0.09     0.02     0.08     0.08     0.03     0.017     0.017    
140     170     100     375     300     85     71     48    
3     2     3     3     3     3     3     3    
200     190     60     140     50     200     190     190    
38       40     41     32     45     27     27    
Non-Ceramic     Non-Ceramic     Non-Ceramic     Non-Ceramic     Non-Ceramic     Non-Ceramic     Non-Ceramic     Non-Ceramic    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
8SOIC     5SOT-23     5SOT-23     5SOT-23     5SOT-23     8SOIC     5SOT-23     5SOT-23