CS5158

Features:

·Dual N-Channel Design
·Excess of 1MHz Operation
·100ns Transient Response
·5-Bit DAC
·Backward Compatible with Adjustable CS5157
·30ns Gate Rise/Fall Times
·0.8% Accuracy for the 01111 DAC Code and 1% for the Remaining DAC Codes
·5V & 12V Operation
·Remote Sense
·Programmable Soft Start
·Lossless Short Circuit Protection
·VCC Monitor
·25ns FET Nonoverlap Time
·V2TM Control Topology
·Current Sharing
·Overvoltage Protection


Pinout




Specifications

Pin Name                                               Max Operating Voltage         Max Current
V_CC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16V/-0.3V . . . .25mA DC/1.5A peak
V_CC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16V/-0.3V . . . .20mA DC/1.5A peak
SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6V/-0.3V . . . . . . . . . . . . . .-100A
COMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6V/-0.3V . . . . . . . . . . . . . ..200A
V_FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6V/-0.3V . . . . . . . . . . . . . ..-0.2A
C_OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V/-0.3V . . . . . . . . . . . . . . -0.2A
V_FFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6V/-0.3V . . . . . . . . . . . . . . .-0.2A
V_ID0 - V_ID4 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V/-0.3V . . . . . . . . . . . . . . . ..50A
V_GATE(H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16V/-0.3V . . . 100mA DC/1.5A peak
V_GATE(L) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16V/-0.3V . . . 100mA DC/1.5A peak
LGnd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0V . . . . . . . . . . . . . . . . . . 25mA
PGnd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V . . . . ..100mA DC/1.5A peak
Operating Junction Temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . .0° to 150°C
Lead Temperature Soldering Reflow (SMD styles only) . . . 60 sec. max above 183°C, 230°C peak
Storage Temperature Range, T_S . . . . . . . . . . . . . . . . . . . . . . . . −65° to 150°C
ESD Susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2kV

Description

The CS5158 is a 5-Bit synchronous dual N-Channel buck controller. It is designed to provide unprecedented transient response for today's demanding high-density, high-speed logic. The regulator operates using a proprietary control method, which allows a 100ns response time to load transients. The CS5158 is designed to operate over a 4.25-16V range (V_CC) using 12V to power the IC and 5V as the main supply for conversion. The CS5158 is specifically designed to power Pentium® II processors and other high performance core logic. It includes the following features: on board, 5-Bit DAC, short circuit protection, 0.8% output tolerance for the 01111 DAC code (1.3V) and 1% for the remaining DAC codes, V_CC monitor, and programmable soft start capability. The CS5158 is available in 16 pin surface mount.