Rainbow Electronics MAX8760 User Manual

Page 25

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MAX8760

Dual-Phase, Quick-PWM Controller for AMD

Mobile Turion 64 CPU Core Power Supplies

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25

CSN

CSP

CMP

CMN

V

CC

REF

GND

CCV

OFS

FB

OAIN+

OAIN-

GNDS

1.0V

TIME

ILIM

19R

R

REF

(2.0V)

SHDN

REF

T = 1

T

T = 0

Gm

Gm

R-2R

DAC

INTERNAL MULTIPLEXERS, MODE

CONTROL, AND SLEW-RATE CONTROL

S[0:1] D[0:5]

SUS

SKIP

Q

Q

T

CMP

CMN

SKIP

FAULT

1.5mV

S

R

Q

R

S

Q

ON-TIME

ONE-SHOT

TRIG

Q

ON-TIME

ONE-SHOT

TRIG

Q

BSTM

TON

V+

CCI

DHM

LXM

V

DD

DLM

PGND

MAIN PHASE

DRIVERS

TRIG

Q

ONE-SHOT

MINIMUM

OFF-TIME

SECONDARY PHASE

DRIVERS

FB

Gm

Gm

CMP

CSP

CMN

CSN

BSTS

DHS

LXS

DLS

Gm

MAX8760

Figure 5. Dual-Phase Quick-PWM Functional Diagram

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