uP1962
12V MOSFET Drivers with Output Disable for Single Phase
Synchronous-Rectified Buck Converter
Features
General Description
The uP1962 is a dual, high voltage MOSFET driver optimized All-In-One Synchronous Buck Drivers
for driving two N-channel MOSFETs in a synchronous-
rectified buck converter. Each driver is capable of driving a
5000pF capacitive load with 30ns transition time. This
device combined with uPI multi-phase buck PWM controller
Integrated Bootstrap Switch
Anti-Shoot-Through Protection Circuitry
1 PWM Signal Generates both Drivers
Tri-State Input for Bridge Shutdown
forms a complete core voltage regulator for advanced micro-
processors.
Output Disable Control Turns Off both MOSFETs
The uP1962 features anti-shoot-through protection that Under Voltage Lockout for Supply Input
prevents cross-conduction of the external MOSFET while
maintains minimum deadtime for optimized efficiency.
High-Side MOSFET Short Power on Protection
Allow PWM Pin as Multi-Function Setting
This part has integrated bootstrap switch to help minimize
the external component count. Both gate drives are turned
off by pulling low EN pin or high-impedance at PWM pin,
preventing rapid output capacitor discharge during system
shutdown.
Application
WDFN2x2-8L and WDFN3x3-8L, PSOP-8L Packages
RoHS Compliant and Halogen Free
Applications
This device also supports supply input under voltage
lockout. The uP1962 is available in thermally enhanced
WDFN2x2-8L and WDFN3x3-8L and PSOP-8L packages.
Desktop CPU Core Voltage Regulators
High Frequency Low Profile DC/DC Converter
High Current Low Voltage DC/DC Converter
Ordering Information
Pin Configuration
Order Number
uP1962PDN8
uP1962QDN8
uP1962SDD8
uP1962XSU8
Package
Top Marking
FH
BOOT
PWM
EN
1
2
3
4
8
7
6
5
UGATE
PHASE
GND
PWM
NC
1
2
3
4
8
7
6
5
BOOT
WDFN2x2 - 8L
UGATE
PHASE
LGATE
FG
NC
GND
EN
WDFN3x3 - 8L
PSOP-8L
uP1962S
uP1962X
VCC
LGATE
VCC
uP1962P
uP1962Q
Note:
(1) Please check the sample/production availability with
uPI representatives.
(2) uPI products are compatible with the current IPC/
JEDEC J-STD-020 requirements. They are halogen-free,
RoHS compliant and 100% matte tin (Sn) plating that are
suitable for use in SnPb or Pb-free soldering processes.
BOOT
PWM
EN
1
2
3
4
8
7
6
5
UGATE
BOOT
PWM
EN
1
2
3
4
8
7
6
5
UGATE
PHASE
GND
PHASE
GND
GND
NC
VCC
LGATE
VCC
LGATE
uP1962X
uP1962S
uP1962-DS-F0200, Feb. 2018
www.upi-semi.com
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