TPS62000DGSR

Product Summary

The TPS62000DGSR is a low-noise synchronous step-down dc-dc converter. It is 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 TPS62000DGSR operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V. The TPS62000DGSR 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 TPS62000DGSR 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 TPS62000DGSR 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 µA. The TPS6200x is available in the 10-pin (DGS) microsmall outline package (MSOP).

Parametrics

TPS62000DGSR absolute maximum ratings: (1)Supply voltages on pin VIN and FC: -0.3 V to 6 V; (2)Voltages on pins EN, ILIM, SYNC, PG, FB, L: -0.3 V to VIN + 0.3 V; (3)Peak switch current: 1.6 A; (4)Operating junction temperature range, TJ: -40 to 150℃; (5)Storage temperature range, Tstg: -65 to 150℃; (6)Lead temperature (soldering, 10 sec): 260℃.

Features

TPS62000DGSR features: (1)High-Efficiency Synchronous Step-Down Converter With Greater Than 95% Efficiency; (2)2 V to 5.5 V Operating Input Voltage Range; (3)Adjustable Output Voltage Range From 0.8 V to VI; (4)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; (5)Synchronizable to External Clock Signal up to 1 MHz; (6)Up to 600 mA Output Current; (7)Pin-Programmable Current Limit; (8)High Efficiency Over a Wide Load Current Range in Power Save Mode; (9)100% Maximum Duty Cycle for Lowest Dropout; (10)Low-Noise Operation Antiringing Switch and PFM/PWM Operation Mode; (11)Internal Softstart; (12)50-μA Quiescent Current (TYP); (13)Available in the 10-Pin Microsmall Outline Package (MSOP); (14)Evaluation Module Available; (15)Available in a Ultra-Small, 12-Pin NanoStar (Wafer Chip-Scale) Package.

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