TPS62100DR

Product Summary

The TPS62100DR is a low-power high-efficiency buck converter which is designed to operate from 1 or 2 li-ion cell battery packs. This part, with its wide input range of 2.5 V to 9 V, has an adjustable output from 0.8 V to 8 V and is capable of 500mA output current. The TPS62100DR synchronizable dc-to-dc converter is available in four different operating frequencies: 300 kHz, 600 kHz, 1 MHz, and 2 MHz. The circuit can be allowed to run at a fixed frequency, or sychronized, using the dual function SD/SYNC input pin. The TPS62100DR is highly efficient at both low and high output currents. The tri-function MODE input pin is used to select constant-frequency, auto-mode, or light-load modes of operation. The multimode operation allows the IC to select the most efficient operating mode, or if desirable, the user can determine which of three modes to operate in. In the auto-mode, the output load detector circuitry determines if the converter should be running in the constant-frequency, heavy-load mode, or pulsed-variable frequency, light-load mode. The TPS62100DR also has a shutdown mode for optimum battery shelf life. The IC utilizes three methods of overload protection, including thermal shutdown and two levels of overcurrent protection. The TPS62100DR is available in the small outline 8-pin SOIC package.

Parametrics

TPS62100DR absolute maximum ratings: (1)VIN input supply voltage: –0.3 V to 10 V; (2)SD/SYNC input voltage: –0.3 V to VIN + 0.3 V; (3)MODE input voltage: –0.3 V to VIN + 0.3 V; (4)COMP input voltage: –0.3 V to 10 V; (5)SW output voltage: –0.3 V to VIN + 0.3 V; (6)SW output current: 1.6 A; (7)Operating junction temperature: –40℃ to +150℃; (8)Storage temperature: –65℃ to +150℃.

Features

TPS62100DR features: (1)2.5-V to 9-V Input Range; (2)0.8-V to 8-V Output Range; (3)Dual-Auto-Mode for High-Efficiency at Light Loads; (4)Externally Synchronizable; (5)0% to 100% Duty Cycle; (6)Low-Quiescient, Standby, and Shutdown Currents; (7)8-Pin SOIC Package; (8)Four PWM Frequency Versions (Maximum 2 MHz).

Diagrams