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

TPS766 (ACTIVE)

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

 

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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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.

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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