MB39C011APFT-G-BND-ERE1 Datasheet, PDF (5/53 Pages) Cypress Semiconductor – 2 ch DC/DC Converter IC with Synchronous Rectification

MB39C011A
3. Block Diagram
-INE1
A
7
VB VB
VB VB
(2.3u) (1.0u)
(2.3u) (1.0u)
Error
Amp1
FB1
6
(1.0 V)
PWM
Comp.1
<< CH1 >>
Vcc
Drive1-1
P-ch
Drive1-2
N-ch
OUT1-1
2
OUT1-2
3
B
VIN
(6 V to 17 V)
-INE2
10
FB2
11
CSCP2
9
(2.0 V)
CSCP1
8
(2.0 V)
Error
Amp2
(1.0 V)
PWM
Comp.2
<< CH2 >>
Drive2-1
P-ch
Drive2-2
N-ch
2.5 V
SCP
Comp.2
2.5 V
(1.9 V)
SCP
Comp.1
(1.9 V)
SR Latch
Reset
UVLO
OSC
CT
5
RT
(1.7 V)
(0.7 V)
(1.7 V)
(0.7 V)
(Vcc-5 V)
VH
Bias
Voltage
VB ErrorAmp Ref.
(5 V)
(1.0 V)
bias
Bias
Voltage
Power
VR1 ON/OFF
CTL
12
GND
OUT2-1
15
OUT2-2
14
VB
4
VH
16
VCC
1
CTL
13 H:ON (Power ON)
L:OFF(Standbymode)
VTH=1.4 V
step-down
A
Vo1
(1.8 V)
step-down
B
Vo2
(3.3 V)
Document Number: 002-08369 Rev. *A
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