TPS51604 Datasheet, PDF (1/20 Pages) Texas Instruments – Synchronous Buck FET Driver Optimized for High-Frequency Applications

TPS51604
www.ti.com
SLUSBA6 – DECEMBER 2012
Synchronous Buck FET Driver Optimized for High-Frequency Applications
Check for Samples: TPS51604
FEATURES
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• Reduced Dead-Time Drive Circuit for
Optimized CCM
• Automatic Zero Crossing Detection for
Optimized DCM Efficiency
• Multiple Low-Power Modes for Optimized
Light-Load Efficiency
• Optimized Signal Path Delays for High-
Frequency Operation
• Integrated BST Switch Drive Strength
Optimized for Ultrabook FETs
• Optimized for 5-V FET Drive
• Conversion Input Voltage Range (V_IN): 4.5 V to
28 V
• Small, 2 mm x 2 mm, 8-Pin, SON Power Pad
Package
APPLICATIONS
• High Frequency CPU V_CORE Applications
Powered By:
– Adapter
– Battery
– NVDC
– 5-V or 12-V Rails
DESCRIPTION
The TPS51604 drivers are optimized for high-
frequency CPU V_CORE applications. Advanced
features such as reduced dead-time drive and Auto
Zero Crossing are used to optimize efficiency over
the entire load range.
The SKIP pin provides immediate CCM operation to
support controlled management of the output voltage.
In addition, the TPS51604 supports two low-power
modes. With the PWM input in tri-state, quiescent
current is reduced to 130 µA, with immediate
response. When SKIP is held at tri-state, the current
is reduced to 8 µA (typically 20 µs is required to
resume switching). Paired with the appropriate TI
controller, the drivers deliver an exceptionally high
performance power supply system.
The TPS51604 is packaged in a space saving,
thermally enhanced 8-pin, 2 mm x 2 mm SON
package and operates from –40°C to 105°C.
TYPICAL APPLICATION
R1
V_IN
C3
TPS51604
1 BST
Q1
DRVH 8
PWM
2 PWM
SW 7
SKIP
V_DD
3 SKIP
4 VDD
C4
GND 6
Q2
DRVL 5
L1
C1
C2
UDG-12234
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated