®
RT9610A/B
High Voltage Synchronous Rectified Buck MOSFET Driver
for Notebook Computer
General Description
Features
Drives Two N-MOSFETs
The RT9610A/B is a high frequency, dual MOSFET driver
specifically designed to drive two power N-MOSFETS in
a synchronous-rectified buck converter topology. It is
especially suited for mobile computing applications that
require high efficiency and excellent thermal performance.
This driver, combined with Richtek's series of multi-phase
Buck PWM controllers, provides a complete core voltage
regulator solution for advanced microprocessors.
Adaptive Shoot-Through Protection
0.5Ω On-Resistance, 4A Sink Current Capability
Supports High Switching Frequency
Tri-State PWM Input for Power Stage Shutdown
Output Disable Function
Integrated Boost Switch
Low Bias Supply Current
VCC POR Feature Integrated
The drivers are capable of driving a 3nF load with fast
rising/falling time and fast propagation delay. This device
implements bootstrapping on the upper gates with only a
single external capacitor. This reduces implementation
complexity and allows the use of higher performance, cost
effective,N-MOSFETs.Adaptive shoot through protection
is integrated to prevent both MOSFETs from conducting
simultaneously.
Small 8-Lead WQFN and WDFN Packages
RoHS Compliant and Halogen Free
Applications
Core Voltage Supplies for Intel® / AMD® Mobile
Microprocessors
High Frequency Low ProfileDC/DC Converters
High Current Low Output VoltageDC/DC Converters
High Input VoltageDC/DC Converters
The RT9610A/B is available in WQFN-8L 3x3 and
WDFN-8L 2x2 Packages.
Simplified Application Circuit
V
IN
RT9610A/B
VCC
V
UGATE
BOOT
CC
PHASE
V
Chip Enable
PWM
CORE
EN
PWM
LGATE
GND
Copyright 2015 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9610A/B-06 September 2015
www.richtek.com
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