GENERAL DESCRIPTION
An integrated current-limited 0.4Ω MOSFET delivers load currents up to 600mA. High switching frequencies (up to 200kHz) allow the use of small surface-mount inductors and output capacitors. The device is available in a TDFN-8 3x3mm pin package. Figure 1. AS1341 - Typical Application 2 Key FEATURES
Output Voltages: Fixed 5V or Adjustable Input Voltage Range: 4.5V to 20V Output Current: Up to 600mA 1.25V Lowest Output Voltage Efficiency: up to 96% Quiescent Supply Current: 12µA Power-OK Output Internal 0.4Ω P-Channel MOSFET Shutdown Current: 0.8µA 100% Maximum Duty Cycle for Low Dropout Current-Limited Architecture Thermal Shutdown TDFN-8 3x3mm Package 3 APPLICATIONS
The device is ideal for notebook computers, distributed power systems, keep-alive supplies, and any other battery-operated, portable device. VIN 4.5V to 20V CIN 5 IN 7 SHDNN 6 ILIMIT 2 GND AS1341 4 LX D1 8 OUT 3 POK 1 FB L1 VOUT = 5V + COUT RPULL Indicates High-Power Trace Revision 1.09 1 - 18 AS1341 Datasheet - Pin Assignments 4 Pin Assignments Figure 2.
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