Vishay Si9183 Data Sheet - Handbook/Manual

Si9183 Vishay Siliconix

High-Performance, Size Saving 150-m A CMOS LDO Regulator

FEATURES Low 135-m V Dropout at 150-m A Load Thin SOT-23 5-Pin Package Guaranteed 150-m A Output Current 300-m A Peak Output Current Capability APPLICATIONS Uses Low ESR Ceramic Output Capacitor

Battery Powered Portable Systems

Fast Load And Line Transient Response

Cellular Phones

Low Output Noise

PDAs, Palmtops

1-
A Maximum Shutdown Current

Pagers

Built-in Short Circuit And Thermal Protection

Post Regulators for Multi-Output Converters

Fixed 1.5-V, 1.8-V, 2.0-V, 2.5-V, 2.7-V, 2.8-V, 2.85-V,

Notebook Computers

3.0-V, 3.3-V, 3.6-V, 5.0-V or Adjustable Output Voltage Options (Version B)

DESCRIPTION

The Si9183 is a high performance yet size saving 150-m A self-noise for low noise applications. The Si9183 includes a CMOS LDO (low dropout) voltage regulator. Its ultra low shutdown feature that allows users to completely disable the ground current and dropout voltage prolong battery life in device and save power when no output is required. portable electronics. The device provides LINE/LOAD transient response and ripple rejection superior to that of

The Si9183, in Thin SOT23-5 packaging, is available in two

Bipolar or Bi CMOS LDO regulators. It is designed to maintain

versions (Version A or B). Version A offers low noise

regulation while delivering 300-m A peak current. The Si9183

performance, while Version B features adjustable output

drives lower cost ceramic, as well as tantalum, output

voltage.

capacitors. Stability is guaranteed from maximum load current down to 0-m A load. An external noise bypass capacitor The Si9183 is available in both standard and lead (Pb)-free connected to the device’s CBP pin will reduce the LDO’s packages.

TYPICAL APPLICATIONS CIRCUITS

Si9183-A Si9183-B

VIN VOUT 5VIN VOUT VIN VOUT 5VIN VOUT

GND GND

SD SD BP SD SD FB ON ON

OFF Thin SOT-23, 5-Lead OFF Thin SOT-23, 5-Lead

FIGURE 1. Version A with Low Output Noise FIGURE 2. Version B with Adjustable Output

Document Number: 71258 www.vishay.com S-40593—Rev. E, 29-Mar-04