10V、50mA、低 Iq、低压降线性稳压器 - TPS770

TPS770 (正在供货)

10V、50mA、低 Iq、低压降线性稳压器

 

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描述

The TPS770xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low dropout voltages and ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS770xx series devices are ideal for micropower operations and where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low \x97 typically 35 mV at 50 mA of load current (TPS77050) \x97 and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 uA maximum) and is stable over the entire range of output load current (0 mA to 50 mA). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life.

The TPS770xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS770xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.2 V to 5.5 V).

特性

  • 50-mA Low-Dropout Regulator
  • Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V Fixed-Output and Adjustable Versions
  • Only 17 uA Quiescent Current at 50 mA
  • 1 uA Quiescent Current in Standby Mode
  • Dropout Voltage Typically 35 mV at 50 mA
  • Over Current Limitation
  • \x9640°C to 125°C Operating Junction Temperature Range
  • 5-Pin SOT-23 (DBV) Package

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参数 与其它产品相比 单通道 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
TPS770 TPS761 TPS76201 TPS763 TPS764 TPS765 TPS766 TPS769
0.05    0.1    0.1    0.15    0.15    0.15    0.25    0.1   
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   
1.2
1.5
1.8
2.5
2.7
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   
1.5
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    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   
0.017    0.09    0.02    0.08    0.08    0.03    0.03    0.017   
48    170    100    375    300    85    140    71   
3    2    3    3    3    3    3    3   
190    190    60    140    50    200    200    190   
27      40    41    32    45    38    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   
5SOT-23    5SOT-23    5SOT-23    5SOT-23    5SOT-23    8SOIC    8SOIC    5SOT-23