TPS62040

Features:

 Up to 95% Conversion Efficiency
 Typical Quiescent Current: 18 A
 Load Current: 1.2 A
 Operating Input Voltage Range: 2.5 V to 6.0 V
 Switching Frequency: 1.25 MHz
 Adjustable and Fixed Output Voltage
 Power Save Mode Operation at Light load Currents
 100% Duty Cycle for Lowest Dropout
 Internal Softstart
 Dynamic Output Voltage Positioning
 Thermal Shutdown
 Short-Circuit Protection
 10 Pin MSOP PowerPad Package
 10 Pin QFN 3 X 3 mm Package


Application

 PDA, Pocket PC and Smart Phones
 USB Powered Modems
 CPUs and DSPs
 PC Cards and Notebooks
 xDSL Applications
 Standard 5-V to 3.3-V Conversion


Pinout




Specifications

	UNITS
Supply voltage VIN (2)	-0.3 V to 7 V
Voltages on EN, MODE, FB, SW(2)	−0.3 V to VCC +0.3 V
Continuous power dissipation	See Dissipation Rating Table
Operating junction temperature range	−40°C to 150°C
Storage temperature range	−40°C to 150°C
Lead temperature (soldering, 10 sec)	260°C

 

(1) Stresses beyond 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-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.

Description

The TPS6204x family of devices are high efficiency synchronous step-down dc-dc converters optimized for battery powered portable applications. The devices are ideal for portable applications powered by a single Li-Ion battery cell or by 3-cell NiMH/NiCd batteries. With an output voltage range from 6.0 V down to 0.7 V, the devices support low voltage DSPs and processors in PDAs,pocket PCs, as well as notebooks and subnotebook computers. The TPS6204x operates at a fixed switching frequency of 1.25 MHz and enters the power save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the devices can be forced into fixed frequency PWM mode by pulling the MODE pin high.The TPS6204x supports up to 1.2-A load current.