AS3729B Datasheet, PDF (2/18 Pages) ams AG – Support for single or dual phase operation

Figure 2:
AS3729B Block Diagram
AS3729B − General Description
Block Diagram
The functional blocks of this device are shown below:
clk
PWM PWM
Logic
ov_curr
ramp
Vov_current
S ^{Current sense}
VSUP
CTRL2
CTRL1
RCSNS
VRef
FB
error ota
VSS
TEMP
CTRL1
VSUP
Pgate
Ngate
Logic
Isense
Zcomp
LX1
1uH
47uF
PVSS
AS3729B Block Diagram: This figure shows the block diagram of the DC/DC controller inside the Main PMIC and
the AS3729B Power Stage with all relevant system components.
Page 2
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ams Datasheet
[v1-03] 2015-Sep-28