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ams Datasheet

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[v1-03] 2015-Aug-31

AS3728 − General Description

Block Diagram

The functional blocks of this device for reference are

shown below:

Figure 2:

AS3728 Block Diagram

AS3728 – Block Diagram: This figure shows the block diagram of the DCDC controller inside the Main PMIC and

the AS3728 Power Stage with all relevant system components.

ramp

Σ

PWM

Logic

Vov_current

Current sense

RCSNS

VRef

error ota

ov_curr

PWM

clk

VSUP

FB

VSS

Logic

Isense

Zcomp

Ngate

Ngate

1uH

47uF

TEMP

CTRL1

CTRL1

CTRL2

HVSUP

5VSUP

BOOST1

LX 1

PVSS