 2002-2012 Microchip Technology Inc.

DS21356C-page 1

TC1107

Features

• Extremely Low Supply Current (50

A, Typ.)

• Very Low Dropout Voltage

• 300mA Output Current

• High Output Voltage Accuracy

• Standard or Custom Output Voltages

• Power Saving Shutdown Mode

• Bypass Input for Ultra Quiet Operation

• Over Current and Over Temperature Protection

• Space-Saving MSOP Package Option

Applications

• Battery Operated Systems

• Portable Computers

• Medical Instruments

• Instrumentation

• Cellular/GSM/PHS Phones

• Linear Post-Regulators for SMPS

• Pagers

Device Selection Table

NOTE: xx indicates output voltages

Available Output Voltages: 2.5, 2.8, 3.0, 3.3, 5.0.

Other output voltages are available. Please contact Microchip

Technology Inc. for details.

General Description

The TC1107 is a fixed output, high accuracy (typically

±0.5%) CMOS upgrade for older (bipolar) low dropout

regulators. Total supply current is typically 50

A at full

load (20 to 60 times lower than in bipolar regulators).

TC1107 key features include ultra low noise operation

(plus optional Bypass input); very low dropout voltage

(typically 240mV at full load), and fast response to step

changes in load. Supply current is reduced to 0.05

A

input is low.

The TC1107 incorporates both over temperature and

over current protection. The TC1107 is stable with an

output capacitor of only 1

F and has a maximum

output current of 300mA.

Typical Application

Package Type

Part Number

Package

Junction

Temp. Range

TC1107-xxVOA

8-Pin SOIC

-40°C to +125°C

TC1107-xxVUA

8-Pin MSOP

-40°C to +125°C

TC1107

1

2

3

4

5

6

7

8

470pF

(Optional)

Shutdown Control

(from Power Control Logic)

C1

1

μF

GND

NC

Bypass

NC

NC

SHDN

+

8-Pin SOIC

1

2

3

4

5

6

7

8

NC

SHDN

GND

NC

Bypass

NC

TC1107VOA

8-Pin MSOP

1

2

3

4

5

6

7

8

NC

SHDN

GND

NC

Bypass

NC

TC1107VUA