AME5131 Datasheet | Analog Microelectronics

.. AME, Inc. AME5131 n General Description The AME5131 is a high-frequency boost converter dedicated for LCD bias supply and white LED applications for cellular phone backlighting, PDAs, and other hand-held devices. The part can also be used to generate standard 3.3 V/5 V to 12 V power conversions. The AME5131 has an internal 400m A switch current limit, offering lower output voltage ripple. The 32µA low quiescent current together with an optimized control scheme, allows device operation at high efficiencies and maintains long battery lifetime. AME5131 uses SOT-25 package and gives a small size solution. Low Power DC/DC Boost Converter n Function Block Diagram On / Off Time Controller UVP VIN _ FB + Boost Controller Driver Bandgap + _ GND Soft Start Enable EN n Features l 0.6Ω Internal Switch l 1.8V to 5.5V Input Range l Adjustable Output Voltage Up to 28V l Input Under Voltage Protection l 32µA Typical No Load Quiescent Current l 1µA Shutdown Current l SOT-25 Package l All AME's Lead Free Products Meet Ro HS Standards CIN 4.7£g F 4 EN VIN 1.8 V-5.5 V 5 V IN 1 R1 2.1M CFF 22PF n Typical Application L1 10£g H D1 VOUT VIN ~28 V FB GND 3 2 R2 150K CO 1£g F n Applications l White LED Back-Lighting l Hand-held Devices l Digital Cameras l Portable Applications l Internet Audio Player l LCD Bias Power l Standard 3.3 V/5 V to 12 V Conversions AME, Inc. AME5131 n Pin Configuration SOT-25 Top View 5 4 Low Power DC/DC Boost Converter AME5131AEEV 1. SW 2. GND 3. FB 4. EN 5. VIN - Die Attach: Conductive Epoxy 3 n Pin Description Pin Number 1 2 3 4...