1

Rev. 5/19/03

SP78LC00

100mA CMOS LDO Regulator

© Copyright 2003 Sipex Corporation

■ Low Dropout Voltage, 160mV @ 100mA

■ High Output Voltage Accuracy, 2%

■ Guaranteed 100mA Output

■ Ultra Low Shutdown Current, 1µA Max

■ Ultra Low GND Current

• 110µA @ 100mA Load

• 28µA @ 100µA Load

■ Fast Transient Response

■ 78dB PSRR @ 100Hz

■ 40dB PSRR @ 400kHz

■ Extremely Tight Load and Line Regulation

■ Very Low Temperature Coefficient

■ Current and Thermal Limiting

■ Unconditionally stable with 1µF Ceramic

■ 5 Pin SOT-23 Package

■ Fixed 3.0V Output

■ 100mA Replacement for 50mA MC78LC

Micropower, 100mA CMOS LDO Regulator

SP78LC00

DESCRIPTION

FEATURES

®

The SP78LC00 is a CMOS LDO designed to meet a broad range of applications that require

accuracy, speed and ease of use. This LDO offers extremely low quiescent current which only

increases slightly under load, thus providing advantages in ground current performance over

bipolar LDOs. The LDO handles an extremely wide load range and guarantees stability with a 1µF

ceramic output capacitor. It has excellent low frequency PSRR, not found in other CMOS LDOs

and thus offer exceptional Line Regulation. High frequency PSRR is better than 40dB up to

400kHz. Load Regulation is excellent and temperature stability is comparable to bipolar LDOs.

The SP78LC00 is available in fixed 3.0V output voltage version in a small SOT-23-5 package.

3

2

1

SP78LC00

1µF

ceramic

1µF

ceramic

2

3

1

4

5

NC

NC

OUT

IN

GND

SP78LC00

■ Mobile Phone Data Cables

■ Laptop, Notebook and Palmtop Computers

■ Battery-Powered Equipment

■ Consumer/ Personal Electronics

■ SMPS Post-Regulator

■ DC-to-DC Modules

■ Medical Devices

■ Data Cable

■ Pagers

APPLICATIONS

Typical Application Diagram