SGM3851A Datasheet | SG Micro

DESCRIPTION The SGM3851A is designed for powering AMOLED displays which require VAVDD, VELVDD and VELVSS. The device integrates two boost converters, VO1 for VELVDD and VO3 for VAVDD, and an inverting buck-boost converter VO2 for VELVSS. Output voltages of all the three converters can be programmed in digital steps through the digital interface control pin (CTRL). The SGM3851A is available in a Green TQFN-3×3-16L package. It operates over an ambient temperature range of -40℃ to +85℃. FEATURES - 2.9V to 4.5V Input Voltage Range - Synchronous Boost Converter (ELVDD) - 4.6V to 5.0V Output Voltage with 100m V Steps - 4.6V Default Output Voltage - 1.2% Accuracy - 400m A Output Current Capability - Output Voltage Sensing Pin for Path Loss pensation (FBS) - Synchronous Inverting Buck-Boost Converter (ELVSS) - -5.4V to -1.4V Output Voltage with 100m V Steps - -2.5V Default Output Voltage - 1.6% Accuracy at -2.5V (±40m V) - 400m A Output Current Capability - Synchronous Boost Converter (AVDD) - 5.8V to 7.9V Output Voltage with 300m V Steps - 6.1V Default Output Voltage - 1.2% Accuracy - 100m A Output Current Capability - VIN and VOUT Bi-Directional Isolation - Short Circuit Protection (SCP) - Overload Protection - Thermal Shutdown - VELVSS Start-Up Delay: 10ms - Short Circuit and OLP Detect Time: 1ms - Available in a Green TQFN-3×3-16L Package APPLICATIONS Smartphones & Tablets Active Matrix OLED Displays TYPICAL APPLICATION VIN = 2.9V to 4.5V Enable Discharge Enable VAVDD Enable VELVDD/VELVSS Program Device 4.7μH 1 SW1 VO1 3 FBS 4 4.7μH 10μH 3×10μF 11 SW2 VO2...