NCP3012 查看數據表（PDF） - ON Semiconductor

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NCP3012

Synchronous PWM Controller

ON Semiconductor 

NCP3012

VCC

EN

PG

SYNC

VREF

COMP

FB

INTERNAL BIAS

ENABLE/

POWER GOOD

LOGIC

POR/STARTUP

THERMAL SD

VC

BOOST

CLAMP

OSCILLATOR

1.25 V

REFERENCE

CLK/

DMAX/

SOFT

START

RAMP

1.5 V

GATE

DRIVE

LOGIC

REF

OTA

+

−

PWM

COMP

LEVEL

SHIFT

VCC

CURRENT SAMPLE &

LIMIT

HOLD

ISET

VC

+

−

OOV

OUV

+

−

Figure 2. NCP3012 Block Diagram

BST_CHRG

BST

HSDR

VSW

LSDR

GND

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