Features: ` Up to 150mA Regulator Output
` Low Quiescent Current
` Low Dropout Voltage: VD=165mV at 150mA
` High Precision Output Voltage: ±1%
` Output Noise: 45Vrms at 80Hz-100KHz
` Good Ripple Rejection Ability: 75dB at 100Hz
and IOUT=100A
` Tight Load and Line Regulation
` Low Temperature Coefficient
` Over Current Protection
` Thermal Protection
` Reverse-battery Protection
` Zero Off-mode Current
` Logic-controlled EnableApplication· Cellular Phones
· Cordless Phones
· Digital Still Cameras
· Wireless Communicators
· PDAs / Palmtops
· PC Mother Board
· Consumer ElectronicsPinout
Specifications
| Parameter |
Symbol |
Value |
Unit |
| Supply Input Voltage |
VIN |
15 |
V |
| Enable Input Voltage |
VEN |
15 |
V |
| Power Dissipation |
PD |
Internally Limited |
W |
| Storage Temperature Range |
TSTG |
-65 to 150 |
|
| Lead Temperature (Soldering, 10sec) |
TLEAD |
260 |
|
| ESD (Machine Model) |
|
200 |
V |
| Package Thermal Resistance (Free Air) |
JA |
(Note 2) |
|
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods
may affect device reliability
Note 2: Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable
power dissipation is a function of the maximum junction temperature, TJ(max), the junction-to-ambient thermal resistance,
JA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated
using: PD(max)=(TJ(max) -TA)/JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature,
and the regulator will go into thermal shutdown.
DescriptionThe AP2202 is a 150mA ULDO regulator which provides very low noise (45Vrms at 80Hz-100KHz), ultra low dropout voltage (typically 165mV at 150mA), very low quiescent current (1A maximum) and excellent power supply ripple rejection (PSRR75dB at 100Hz) in battery powered applications, such as handsets and PDAs and in noise sensitive applications, such as RF electronics.
The AP2202 also features logic compatible enable/ shutdown control inputs, a low power shutdown mode for extended battery life, over current protection, over temperature protection, as well as reversed-battery protection.
The output capacitor of 1.0F minimum and 2.2F minimum near its pin are recommended when CBYP is unused and 470pF respectively. Tantalum or aluminium electrolytic capacitors are adequate. Bypass capacitor is connected to the internal voltage referenceto quiet noise. Its recommended value is from 470pF to 1nF. If output noise is not a major concern and rapid turn-on is necessary, omit CBYP and leave BYP open. The AP2202 has adjustable, 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.3V and 4.0V versions.
The AP2202 is available in space saving SOT-23-5 package.
AP2202 Data Sheet
