CS5132

Features:

`Synchronous Switching Regulator Controller (V<sub>CORE</sub>)
`Dual N-Channel MOSFET Synchronous Buck Design
`V<sup>2TM</sup> Control Topology
`200ns Transient Loop Response
`5 bit DAC with 1% Tolerance
`Hiccup Mode Overcurrent Protection
`65ns adaptive FET Non-Overlap Time
`Non-Synchronous Switching Regulator Controller (V_I/O)
`Single N-Channel MOSFET buck design
`Adjustable Output with 2% Tolerance
`System Power Management
Pentium^® II System V_CORE
and V_I/O Controlled by
a Single IC

Power-Good Output
Monitors V_CORE Switching
Regulator Output

OVP Signal Monitors V_CORE
Switching Regulator Output


Pinout




Specifications

Pin Symbol	Pin Name	VMAX	VMIN	ISOURCE	ISINK
VCC1	IC Logic and Low Side Driver Power Input	16V	-0.3V	N/A	1.5A Peak 200mA DC
VCC2	IC High Side Drivers Power Input	16V	-0.3V	N/A	3A Peak 400mA DC
COMP1, COMP2	Compensation Pins for the VCORE and VI/O error amplifiers.	6V	-0.3V	1mA	5mA
VFB1, VOUT1, VID0-4, VOUT2, VFB2, VFFB1, VFFB2	VCORE Voltage Feedback Input Pin, VCORE Output Voltage Sense Pin, Voltage ID DAC Input Pins, VI/O Output Voltage Sense Pin, VI/O Voltage Feedback Input Pin, VCORE PWM comparator Fast Feedback Pin, VI/O PWM comparator Fast Feedback Pin.	6V	-0.3V	1mA	1mA
COFF1, COFF2	Off-Time Pins for the VCORE and VI/O regulators	6V	-0.3V	1mA	50mA
GATE(H), GATE	High-Side FET Drivers for the VCORE and VI/O regulators.	16V	-0.3V	1.5A Peak 200mA DC	1.5A Peak 200mA DC
GATE(L)	Low-Side FET Driver	16V	-0.3V	1.5A Peak 200mA DC	1.5A Peak 200mA DC
PWRGD	Power-Good Output	6V	-0.3V	1mA	30mA
OVP	Overvoltage Protection	15V	-0.3V	1mA	1mA
PGnd	Power Ground	0V	0V	3A Peak 400mA DC	N/A
LGnd	Logic Ground	0V	0V	40mA	N/A

Operating Junction Temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 125
Lead Temperature Soldering: Reflow (SMD styles only) . . . . . . . . . . . . . . . . . . . . . .60 sec max. above 183, 230 Peak
Storage Temperature Range, T_S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -65 to 150
ESD Susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Class 2


Description

The CS5132 is a dual output CPU power supply controller. It contains a synchronous dual NFET buck controller utilizing the V^2TM control method to achieve the fastest possible transient response and best overall regulation. The CS5132 also contains a second nonsynchronous NFET buck controller.

These synchronous and non-synchronous buck regulators are designed to power the core and I/O logic of the latest high performance CPUs. The CS5132 incorporates many additional features required to ensure the proper operation and protection of the CPU and power system. The CS5132 dual output provides the industryÕs most highly integrated solution, minimizing external component count, total solution size, and cost.

The CS5132 is specifically designed to power IntelÕs Pentium^® II processor and includes the following features: 5 bit DAC and fixed 1.23V reference, Power-Good output, hiccup mode overcurrent protection, adaptive voltage positioning, and overvoltage protection.

The CS5132 will operate over an 8.4V to 14V range and is available in 24 lead surface mount package.