Part Number: LM1086

Function: 1.5A, Low Dropout Positive Regulator

Package: TO-220 Type, TO-263 Type

Manufacturer: Texas Instruments

Pinouts:

 

Description

The LM1086 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 1.5A of load current. It has the same pin-out as TI’s industry standard LM317. The LM1086 is available in an adjustable version, which can set the output voltage with only two external resistors. It is also available in six fixed voltages: 1.8V, 2.5V, 2.85V, 3.3V, 3.45V and 5.0V. The fixed versions integrate the adjust resistors. The LM1086 circuit includes a zener trimmed bandgap reference, current limiting and thermal shutdown.

Features

• Available in 1.8V, 2.5V, 2.85V, 3.3V, 3.45V, 5V and Adjustable Versions
• Current Limiting and Thermal Protection
• Output Current 1.5A
• Line Regulation 0.015% (typical)
• Load Regulation 0.1% (typical)

Other data sheets are available within the file:

LM1086CS-2.5/NOPB, LM1086CS-2.85, LM1086CS-3.3, LM1086CS-3.3/NOPB

LM1086 Datasheet PDF Download

Part Number: TPS77601-EP

Function: FAST-TRANSIENT-RESPONSE 500mA, LOW-DROPOUT REGULATOR

Package: 20 pin TSSOP Type

Manufacturer: Texas Instruments

Pinouts:

 

Description

The TPS776xx devices are designed to have a fast transient response and be stable with a 10-µF low ESR capacitors. 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 169 mV at an output current of 500 mA for the TPS77633) 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 85 µA over the full range of output current, 0 mA to 500 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 1 µA at TJ= 25°C.

Power good (PG) of the TPS776xx is an active high output, which can be used to implement a power-on reset or a low-battery indicator.The TPS776xx are offered in 1.5-V, 1.8-V, 2.5-V, 2.8 V, and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 5.5 V for TPS77601 option). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges.

Features

1. Controlled Baseline
2. − One Assembly/Test Site, One Fabrication Site
3. Extended Temperature Performance of −40°C to 125°C
4. Enhanced Diminishing Manufacturing
5. Sources (DMS) Support
6. Enhanced Product Change Notification
7. Qualification Pedigree† Open Drain Power Good
8. 500-mA Low-Dropout Voltage Regulator
9. Available in 1.5-V, 1.8-V, 2.5-V, 2.8-V, 3.3-V
10. Fixed Output and Adjustable Versions
11. Dropout Voltage to 169 mV (Typ) at 500 mA(TPS77633)

 

Other data sheets are available within the file:

77601QE, 77615QE, 77618QE, 77625QE, 77628QE

 

TPS77601-EP Datasheet PDF Download