1 Features
1• 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 (VIN): 4.5 to 28 V
• 2-mm × 2-mm, 8-Pin, WSON Thermal Pad
Package

2 Applications
• Tablets Using High-Frequency CPUs With the
Following Power Input:
– Adapter
– Battery
– NVDC
– 5-V or 12-V Rails

3 Description
The TPS51604 drivers are optimized for high-
frequency CPU VCORE 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 the option of 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 device is packaged in a space saving,
thermally-enhanced 8-pin, 2-mm x 2-mm WSON
package and operates from –40°C to 105°C.