CS5132 View Datasheet(PDF) - Cherry semiconductor

Part Name

Description

View to exact match

CS5132

Dual Output CPU Buck Controller

Cherry semiconductor 

PACKAGE PIN #

14

13

12

11

10

9

7

6

5

4

8

Package Pin Description: continued

PIN SYMBOL

COFF2

COMP2

VOUT2

VFB2

VFFB2

LGnd

VFB1

VOUT1

COMP1

COFF1

VFFB1

FUNCTION

Off-Time Capacitor Pin. A capacitor from this pin to LGnd sets the off

time for the non-synchronous regulator (VI/O).

VI/O section error amp output. PWM comparator inverting input. A

capacitor to LGnd provides error amp compensation.

VI/O section current limit comparator inverting input.

VI/O section error amp inverting feedback input.

VI/O PWM comparator fast feedback non-inverting input. VI/O sec-

tion current limit comparator non-inverting input.

Logic ground.

VCORE section error amp inverting input, PWRGD and OVP compara-

tor input.

VCORE section current limit comparator inverting input.

VCORE section error amp output. VCORE section PWM comparator

inverting input. A capacitor to LGnd provides error amp compensa-

tion.

Off-Time Capacitor Pin. A capacitor from this pin to LGnd sets the off

time for the synchronous regulator (VCORE).

VCORE section PWM comparator fast feedback non-inverting input.

VCORE section current limit comparator non-inverting input.

VFB1

VOUT1

VID0

VID1

VID2

VID3

VID4

PWRGD

OVP

VFFB1

-+

1.06V

86mV

-+

DAC

VCC1

Block Diagram

COMP1

EA1

Current

Limit1

PWM

COMP1

Discharge

Comparator

+

- 0.25V

RQ

Fault

Latch1

S

COFF1 VCC1

VCC2

UVLO

Off Time1

One Shot

PGnd

Non-overlap

Logic

PGnd

EA2

+-

+

- 1.23V

PWM

- COMP2

+

1.10V

+-

-

Off Time2

One Shot

+

+

Discharge

- 0.25V Comparator

QR

Fault

Latch2

S

PGnd

Current

Limit2

86mV

+-

GATE(H)

GATE(L)

COFF2

GATE

VFFB2

VFB2

VOUT2

COMP2

LGnd

3

PGnd

Share Link: