RT8096A 1A, 1.5MHz, 5.5V CMCOT Synchronous Step-Down Converter Features General Description Efficiency Up to 95% The RT8096A is a high efficiency synchronous R 160m HS / 110m LS DSON step-down DC/DC converter. Its input voltage range is V Range 2.5V to 5.5V IN from 2.5V to 5.5V and provides an adjustable regulated V 0.6V with 2% Accuracy REF output voltage from 0.6V to 3.3V while delivering up to CMCOT Control Loop Design for Best 1A of output current. Transient Response, Robust Loop Stability with The internal synchronous low on-resistance power Low-ESR (MLCC) C OUT switches increase efficiency and eliminate the need for Fixed Soft-Start 1.2ms PGOOD Function in an external Schottky diode. The Current Mode T/SOT-23-6 Constant-On-time (CMCOT) operation with internal Cycle-by-Cycle Over Current Protection compensation allows the transient response to be Input Under Voltage Lockout optimized over a wide range of loads and output Output Under Voltage Protection (UVP Hiccup) capacitors. The RT8096A is available in the Thermal Shutdown Protection T/SOT-23-5 and T/SOT-23-6 packages. Power Saving at Light Load Ordering Information Applications RT8096A STB, Cable Modem, & xDSL Platforms Package Type LCD TV Power Supply & Metering Platforms B : SOT-23-5 General Purpose Point of Load (POL) E : SOT-23-6 J5 : TSOT-23-5 J6 : TSOT-23-6 Pin Configurations Lead Plating System (TOP VIEW) G : Green (Halogen Free and Pb Free) UVP Trim Option FB VIN FB PG VIN H: Hiccup 5 4 6 5 4 PWM/PSM Mode A : PSM/PWM 2 3 2 3 Note : EN GND LX EN GND LX Richtek products are : TSOT-23-5/SOT-23-5 TSOT-23-6/SOT-23-6 RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Simplified Application Circuit L RT8096A V IN LX V VIN OUT C IN R1 C OUT EN PG* FB GND R2 *For T/SOT-23-6 Package Only Copyright 2014 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS8096A-01 November 2014 www.richtek.com 1 RT8096A Marking Information RT8096AHGB RT8096AHGE 4H= : Product Code 15= : Product Code DNN : Date Code DNN : Date Code 4H=DNN 15=DNN RT8096AHGJ5 RT8096AHGJ6 06= : Product Code 0T= : Product Code DNN : Date Code DNN : Date Code 06=DNN 0T=DNN Functional Pin Description Pin No. Pin Name Pin Function T/SOT-23-5 T/SOT-23-6 1 1 EN Enable Control Input. 2 2 GND Power Ground. 3 3 LX Switch Node. 4 4 VIN Supply Voltage Input. The RT8096A operates from a 2.5V to 5.5V input. Feedback Voltage Input. An external resistor divider from the output to 5 6 FB GND, tapped to the FB pin, sets the output voltage. Power Good Indicator. The output of this pin is an open-drain with -- 5 PG external pull-up resistor. PG is pulled up when the FB voltage is within 90%, otherwise it is LOW. Copyright 2014 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS8096A-01 November 2014 2