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RT8012A

Richtek
Part Number RT8012A
Manufacturer Richtek
Description Dual 1A/1.5A-1.2MHz Synchronous Step-Down Converters
Published Aug 23, 2008
Detailed Description Preliminary RT8012A Dual 1A/1.5A-1.2MHz Synchronous Step-Down Converters General Description The RT8012A is a dual PWM...
Datasheet PDF File RT8012A PDF File

RT8012A
RT8012A

Overview
Preliminary RT8012A Dual 1A/1.
5A-1.
2MHz Synchronous Step-Down Converters General Description The RT8012A is a dual PWM, current mode, stepdown converter.
Its input voltage range is from 2.
6V to 5.
5V and has a constant 1.
2MHz switching frequency, allowing the use of tiny, low cost capacitors and inductors 2mm or less in height.
Each output voltage is adjustable from 0.
8V to 5V.
Internal power switches with low on-resistance of www.
DataSheet4U.
com the dual step-down regulators increase efficiency and eliminate the need for external Schottky diodes.
The RT8012A can run at 100% duty cycle for low dropout operation that extends battery life in portable systems.
With independent Enable and Power-Good pins, it is easy to control the power up sequence of the two converters, which is important in some applications.
Features z z z High Efficiency : Up to 95% 1.
2MHZ Constant Switching Frequency 1A and 1.
5A Load Current on Each Channel Respectively Low RDS(ON) Internal Switches No Schottky Diode Required 0.
8V Reference Allows Low Output Voltage Low Dropout Operation : 100% Duty Cycle Internally Compensated < 2μA Shutdown Current Power Good Output Voltage Monitor Internal Soft-Start Easy Power Sequence Control Over temperature Protection Short Circuit Protection Thermally Enhanced 16-Lead WQFN Package RoHS Compliant and 100% Lead (Pb)-Free z z z z z z z z z z Ordering Information RT8012A Package Type QW : WQFN-16L 4x4 (W-Type) Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commercial Standard) z z z Applications z z z Note : RichTek Pb-free and Green products are : z z z `RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
Portable Instruments Microprocessors and DSP Core Supplies Cellular Phones Wireless and DSL Modems PC Cards Digital Cameras `Suitable for use in SnPb or Pb-free soldering processes.
`100% matte tin (Sn) plating.
Pin Configurations (TOP VIEW) GND PGOOD1 12 For marking ...


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