STMicroelectronics | L6902D

The L6902D is a complete and simple step down switching regulator with adjustable current limit.

The device can be used as a standard DC/DC converter with adjustable current limit (set by using the external sense resistor). It has an Operating temperature ranges b/w -40 °C to 150 °C and available in a SOIC-8 package.

Features:

• Up to 1 A output current
• Operating input voltage from 8 V to 36 V
• Precise 3.3 V (±2%) reference voltage
• 5 % output current accuracy
• Output voltage adjustable from 1.235 V to 34 V
• 250 kHz internally fixed frequency
• Voltage feedforward
• Zero load current operation
• Adjustable current limit
• Protection against feedback Disconnection
• Thermal shutdown

Applications:

• Chargers for NiCd, NiMH batteries and preregulator for lithium-ion batteries
• Adjustable current generator
• Simple step-down converters with adjustable current limit
• Battery equipped systems
• Distributed power supply
• Mobile PC and subnotebook