ADP3212 データシートの表示（PDF） - ON Semiconductor

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コンポーネント説明

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ADP3212

7-Bit, Programmable, 3-Phase, Mobile CPU Synchronous Buck Controller

ON Semiconductor 

ADP3212, NCP3218, NCP3218G

PIN ASSIGNMENT

EN 1

PWRGD

IMON

CLKEN

FBRTN

FB

COMP

TRDET

VARFREQ

VRTT

TTSNS

GND

ADP3212

NCP3218

(top view)

BST1

DRVH1

SW1

SWFB1

PVCC

DRVL1

PGND

DRVL2

SWFB2

SW2

DRVH2

BST2

GND

VCC EN RPM RT RAMP VARFREQ

TRDET

COMP

FB

LLINE

SWFB1

SWFB2

SWFB3

PH0

PH1

PWRGD

CLKEN

FBRTN

TRDET

Generator

UVLO

Shutdown

and Bias

Oscillator

+S

REF +

VEA

−

+

CSREF

+S _

1.55 V

Current

Balancing

Circuit

OVP

Driver

Logic

DAC + 200 mV

−

+

CSREF

Number of

Phases

OCP

Shutdown

Delay

−

+

DAC − 300 mV

PWRGD

Open

Drain

PWRGD

Start Up

Delay

CLKEN

Open

Drain

Precision

Reference

CLKEN

Start Up

Delay

Current

Limit

Circuit

Soft

Transient

Delay

Delay

Disable

VID

DAC

DAC

REF

PVCC

PGND

PSI and

DPRSLP

Logic

CCuurrerennt t

MMoonnitiotor r

+

−

Thermal

Throttle

Control

Soft Start

BST1

DRVH1

SW1

PVCC

DRVL1

PGND

BST2

DRVH2

SW2

DRVL2

OD3

PWM3

PSI

DPRSLP

IMON

CSREF

CSSUM

CSCOMP

ILIM

TTSENSE

VRTT

Figure 1. Functional Block Diagram

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