Vishay Siliconix

SiP21106/7/8

New Product

Document Number: 74442

S-70067–Rev. B, 22-Jan-07

www.vishay.com

1

150-mA Low Noise, Low Dropout Regulator

APPLICATIONS

•

Cellular Phones, Wireless Handsets

•PDAs

•MP3 Players

•

Digital Cameras

•

Pagers

•

Wireless Modem

DESCRIPTION

The SiP21106 BiCMOS 150 mA low noise LDO voltage reg-

ulators are the perfect choice for low battery operated low

powered applications. An Ultra low ground current and low

dropout voltage of 135 mV at 150 mA load helps to extend

battery life for portable electronics. Systems requiring a quiet

voltage source, such as RF applications, will benefit from the

SiP21106 low output noise.

The SiP21107 do not require a noise bypass cpacitor and

provides an error flag pin (POK or Power OK). POK output

requires an external pull-up resistor and goes low when the

supply has not come up to voltage.

The SiP21108 output is adjusted with an external resistor

network.

The SiP21106/7/8 regulators allow stable operation with very

small ceramic output capacitors, reducing board space and

component cost. They are designed to maintain regulation

while delivering 330 mA peak current upon turn-on. During

start-up, an active pull-down circuit improves the output tran-

sient response and regulation. In shutdown mode, the output

automatically discharges to ground through a 100

Ω NMOS.

The SiP21106/7/8 are available in TSOT23-5L and a super

thin lead (Pb)-free TSC75-6L packages for operation over

the industrial operation range (- 40 °C to 85 °C).

FEATURES

TSOT23-5L Package Options

•

1.0 % Output Voltage Accuracy at 25 °C

•

Low Dropout Voltage: 135 mV at 150 mA

•

(10 Hz to 100 kHz Bandwidth)

With 10 nF Over Full Load Range

•

35 µA (typical) Ground Current at 1 mA Load

•

1 µA Maximum Shutdown Current at 85 °C

•

Output Auto Discharge at Shutdown Mode

•

Built-in Short Circuit (330 mA typical) and Thermal Pro-

tection (160 °C typical)

•

SiP21108 Adjustable Output Voltage

•

SiP21107 POK Error Flag

•

- 40 °C to + 125 °C Junction Temperature Range for

Operation

•

Uses Low ESR Ceramic Capacitors

TYPICAL APPLICATION CIRCUIT

BP

EN

GND

4

5

2

3

1

EN

SiP21106

TSOT23-5L Package

TSC75-6L Package

5

NC

GND

EN

BP

4

6

2

3

1

EN

SiP21106

RoHS

COMPLIANT