NCP9001 Datasheet | onsemi

Features http://onsemi. MARKING DIAGRAM 5 5 1 TSOP- 5 SN SUFFIX CASE 483 DBPAYWG G 1 - 95.3% of Efficiency for 3.3 V Output and 4.2 V Input and 80 m A - - - - - - - - - - - - - - - - Load- Current Sources up to 600 m A 1.5 MHz Switching Frequency Adjustable Output Voltage from 0.9 V to 3.3 V 30 m A Quiescent Current Synchronous Rectification for Higher Efficiency 2.7 V to 5.5 V Input Voltage Range Thermal Limit Protection Shutdown Current Consumption of 0.3 m A Short Circuit Protection This is a Pb- Free Device Cellular Phones, Smart Phones and PDAs Digital Still/Video Cameras MP3 Players and Portable Audio Systems Wireless and DSL Modems Portable Equipment USB Powered Devices VIN CIN 2 OFF ON 3 GND EN FB 4 R2 1 VIN LX 5 L COUT R1 Cff VOUT DBP = Specific Device Code A = Assembly Location Y = Year W = Work Week G = Pb- Free Package (Note: Microdot may be in either location) ORDERING INFORMATION Device NCP9001SNT1G Package Shipping TSOP- 5 3000/T ape & Reel (Pb- Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. Typical Applications Figure 1. Typical Application © Semiconductor ponents Industries, LLC, 2006 August, 2006 - Rev. 2 Publication Order Number: NCP9001/D 100 90 80 70 60 50 Vout = 3.3 V Vin = 4.2 V TA = 25°C 0 100 200 300 Iout (m A) 400 500 600 Eff (%) Figure 2. Efficiency vs. Output Current Q1 Vbattery Q2 VIN 1 PWM/PFM CONTROL LX 5 2.2 m H 10 m F 4.7 m F GND 2 ILIMIT R1 18 p F Enable EN 3 LOGIC CONTROL & THERMAL SHUTDOWN REFERENCE VOLTAGE FB 4 R2 Figure 3. Simplified Block Diagram...