PM6691 Single phase controller for Intel MVP7 GPU and CPU power supply

The PM6691 is a single phase step-down switching controller with embedded gate drivers. It has been designed to supply the CPU and GPU of the Intel® mobile platform, according with INTEL MVP7 specifications.

The controller is based on clocked constant on-time (CkCOT) architecture that allows nearly constant switching frequency over load.

An embedded integrator control loop compensates the DC voltage error due to the output voltage ripple. Load line of the output voltage can be adjusted by setting a resistor divider and it can be thermally compensated by using 1 NTC.

Current monitor IMON provides an analog output current proportional to the CPU load current. One NTC can be used to sense the maximum temperature of the switching regulator and provide the temperature information to the CPU through SVID bus.

Adjustable VID transitions feature, TOT feature, extremely low shutdown and quiescent current make the PM6691 a very flexible and cost-effective solution for IMVP7 CPU power supply

技术特性

4.5 V to 28 V input voltage range
0.25 V to 1.52 V output voltage range, 8 bit SVID
IMVP7 spec compliant
Selectable PWM switching frequency, maximum temperature, maximum currents, boot voltage, VID transitions slew rate slow
Adjustable load line (LL), 1 NTC needed for LL thermal compensation
Lossless current sense with inductor DCR or accurate inductor current sense with RSENSE
CkCOT (clocked constant on time control loop) allows almost fixed pwm switching frequency
Output voltage ripple compensation
Tunable overshoot threshold (TOT) allows to reduce overshoot in load transient
Skip mode allows to increase efficiency at light load
Average and cycle by cycle OCP for each phase
Embedded gate drivers and bootstrap diodes
Adjustable VID transitions feature

PM6691 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
PM6691TR	Preview		1000	VFQFPN 28 4x4x1.0	Tape And Reel
PM6691	Preview		1000	VFQFPN 28 4x4x1.0	Tube

DATA BRIEF

描述	版本	大小
PM6691 : DB1259: Single phase controller for Intel MVP7 GPU and CPU power supply	1	78KB