 2001-2012 Microchip Technology Inc.

DS21438C-page 1

TC59

Features

• Low Dropout Voltage

- Typically 120mV @ 50mA; 380mV @ 100mA

for -5.0V Output Part

• Tight Output Voltage Tolerance: ±2% Max

• Low Supply Current: 3.5

A, Typ

• Small Package: 3-Pin SOT-23A

Applications

• Cellular Phones

• Battery Operated Systems

• Palmtops

• Portable Cameras

Device Selection Table

Other output voltages are available. Please contact Microchip

Technology Inc. for details.

Package Type

General Description

The TC59 is a low dropout, negative output voltage

regulator designed specifically for battery-operated

systems. Its full CMOS construction eliminates the

wasted ground current typical of bipolar LDOs. This

reduced supply current significantly extends battery

life, particularly when the TC59 is operated in dropout.

Other TC59 key features include low supply current

(typically 3.0

A) and low dropout operation (typically

120mV at 50mA). The TC59 is packaged in a small

3-Pin SOT-23A package.

Functional Block Diagram

Part Number

Output

Voltage

Package

Temperature

Range

TC593002ECB

3.0V

3-Pin SOT-23A -40°C to +85°C

TC595002ECB

5.0V

3-Pin SOT-23A -40°C to +85°C

3-Pin SOT-23A

TC59

1

4

2

NOTE: 3-Pin SOT-23A is equivalent to the EIAJ SC59

1

µF

1

µF

TC59

1

2

3

+

+

_

_

Low Dropout, Negative Output Voltage Regulator