TPS62006

Features:

High-Efficiency Synchronous Step-Down Converter With Greater Than 95%Efficiency
2 V to 5.5 V Operating Input Voltage Range
Adjustable Output Voltage Range From 0.8 V to VI
Fixed Output Voltage Options Available in 0.9 V, 1 V, 1.2 V, 1.5 V, 1.8 V, 1.9 V, 2.5 V, and 3.3 V
Synchronizable to External Clock Signal up to 1 MHz
Up to 600 mA Output Current
Pin-Programmable Current Limit
High Efficiency Over a Wide Load Current Range in Power Save Mode
100% Maximum Duty Cycle for Lowest Dropout
Low-Noise Operation Antiringing Switch and PFM/PWM Operation Mode
Internal Softstart
50-A Quiescent Current (TYP)
Available in the 10-Pin Microsmall Outline Package (MSOP)
Evaluation Module Available
Available in a Ultra-Small, 12-Pin NanoStar
(Wafer Chip-Scale) Package

Application

Low-Power CPUs and DSPs
Cellular Phones
Organizers, PDAs, and Handheld PCs
MP-3 Portable Audio Players
Digital Cameras
USB-Based DSL Modems and Other Network Interface Cards


Pinout




Specifications

Supply voltages on pin VIN and F_C (see Note 1). . . . . . . . . . . . . . . −0.3 V to 6 V
Voltages on pins EN, ILIM, SYNC, PG, FB, L (see Note 1) . . −0.3 V to VIN + 0.3 V
Peak switch current . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 A
Continuous power dissipation . . .  . . . . . . . . . . . . . See Dissipation Rating Table
Operating junction temperature range, T_J .  . . . . . . .. . . . . . . . −40°C to 150°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Lead temperature (soldering, 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C


Description

The TPS6200x devices are a family of low-noise synchronous step-down dc-dc converters that are ideally suited for systems powered from a 1-cell Li-ion battery or from a 2- to 3-cell NiCd, NiMH, or alkaline battery. The TPS6200x operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V.

The TPS6200x is a synchronous current-mode PWM converter with integrated N- and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To achieve the highest efficiency over a wide load current range, the converter enters a power-saving pulse-frequency modulation (PFM) mode at light load currents. Operating frequency is typically 750 kHz,allowing the use of small inductor and capacitor values. The TPS6200x can be synchronized to an external clock signal in the range of 500 kHz to 1 MHz. For low-noise operation, the converter can be operated in the PWM mode and the internal antiringing switch reduces noise and EMI. In the shutdown mode, the current consumption is reduced to less than 1 A. The TPS6200x is available in the 10-pin (DGS) microsmall outline package (MSOP). The TPS62000 is also available in a 12-pin, 1,85 mm x 1,3 mm NanoStar chip scale package (YEG). The devices operate over a free-air temperature range of −40°C to 85°C.