GENERAL DESCRIPTION
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 SW _ 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 RoHS Standards CIN 4.7£gF 4 EN VIN 1.8 V-5.5 V 5 V IN 1 R1 2.1M CFF 22PF n Typical Application L1 10£gH D1 VOUT VIN ~28 V SW AME5131 FB GND 3 2 R2 150K CO 1£gF 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 1 AME, Inc.
Analog Microelectronics
