AP2203 Datasheet, PDF (1/19 Pages) BCD Semiconductor Manufacturing Limited – 150mA RF ULDO REGULATOR WITH ERROR FLAG

Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
General Description
Features
AP2203
The AP2203 is a 150mA ULDO regulator, which pro- _{· Error Flag to Indicate Undervoltage Fault}
vides ultra low dropout voltage (typically 165mV at _{· Up to 150mA Regulator Output}
150mA), very low quiescent current (1µA maximum) _{· Low Quiescent Current}
in shutdown mode and excellent power supply ripple
rejection (PSRR 75dB at 100Hz) in battery powered
·
Low Dropout Voltage: V_DROP=165mV at 150mA
applications, such as handsets and PDAs and in noise ^{· High Output Accuracy: ±1%}
sensitive applications, such as RF electronics.
· Good Ripple Rejection Ability: 75dB at 100Hz
and I_OUT=100µA
The AP2203 also features an undervoltage monitor _{· Tight Load and Line Regulation}
with an error flag output, logic compatible enable/shut- _{· Low Temperature Coefficient}
down control inputs, a low power shutdown mode for _{· Over Current Protection}
extended battery life, over current protection, over _{· Thermal Protection}
temperature protection as well as reversed-battery pro-
tection.
·
·
Reverse-battery Protection
Zero Off-mode Current
The AP2203 has 2.5V, 3.0V and 3.3V versions.
· Logic-controlled Enable
The AP2203 is available in space saving 5-pin SOT-
23-5 package.
Applications
· Cellular Phones
· Cordless Phones
· Wireless Communicators
· PDAs / Palmtops
· Consumer Electronics
Mar. 2006 Rev. 1. 0
SOT-23-5
Figure 1. Package Type of AP2203
BCD Semiconductor Manufacturing Limited
1