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RT8010

Richtek
Part Number RT8010
Manufacturer Richtek
Description High Efficiency PWM Step-Down DC/DC Converter
Published Aug 23, 2008
Detailed Description ® RT8010/A 1.5MHz, 1A, High Efficiency PWM Step-Down DC-DC Converter General Description The RT8010/A is a high effici...
Datasheet PDF File RT8010 PDF File

RT8010
RT8010

Overview
® RT8010/A 1.
5MHz, 1A, High Efficiency PWM Step-Down DC-DC Converter General Description The RT8010/A is a high efficiency Pulse-Width-Modulated (PWM) step-down DC-DC converter.
Capable of delivering 1A output current over a wide input voltage range from 2.
5V to 5.
5V, the RT8010/A is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources such as cellular phones, PDAs and hand-held devices.
Two operating modes are available including : PWM/LowDropout autoswitch and shutdown modes.
The Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode.
No external Schottky diode is required in practical application.
The RT8010/A enters Low Dropout mode when normal PWM cannot provide regulated output voltage by continuously turning on the upper P-MOSFET.
The RT8010/A enter shut-down mode and consumes less than 0.
1μA when EN pin is pulled low.
The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operating frequency of 1.
5MHz.
This along with small WDFN-6L 2x2 and WQFN-16L 3x3 package provides small PCB area application.
Other features include soft start, lower internal reference voltage with 2% accuracy, over temperature protection, and over current protection.
Features  2.
5V to 5.
5V Input Range  Output Voltage (Adjustable Output From 0.
6V to VIN)  RT8010 : 1V, 1.
2V, 1.
5V, 1.
6V, 1.
8V, 2.
5V and 3.
3V Fixed/Adjustable Output Voltage  RT8010A Adjustable Output Voltage Only  1A Output Current  95% Efficiency  No Schottky Diode Required  1.
5MHz Fixed-Frequency PWM Operation  Small 6-Lead WDFN and 16-Lead WQFN Package  RoHS Compliant and 100% Lead (Pb)-Free Applications  Mobile Phones  Personal Information Appliances  Wireless and DSL Modems  MP3 Players  Portable Instruments Pin Configuration (TOP VIEW) IC 1 EN 2 VIN 3 16 15 14 13 GND 1 12 VIN 6 FB/VOUT GND 2 5 GND GND 3 7 4 LX FB/VOUT 4 11 VIN 10 VIN 17 9 VIN 5...


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