RT8113 查看數據表（PDF） - Richtek Technology
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RT8113 Datasheet PDF : 21 Pages
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RT8113
Typical Application Circuit
C11
12V
RT8113
12V
C9
R20 R19
7 ADJ
14 VCC12
Exposed Pad (25) GND
9
BOOT 17 R1
UGATE 16
PHASE 15 R2
LGATE 13
C1
Q1
Q2
R3
NTC
L1
R4 C3
Option for
Disable
Drop
EN
R18
RT/EN
Q3 RRT
R15 R16
2
OCSET
ISP 11
ISN 12
C2
R5
R6
D1
C5
R8
C10
R14
10
VCC5
8 OFS
Option for
Positive OFS
Option for
FB 6
R7
Option
R11
COMP 5 C6 R9
R10
R13 Negative
OFS
FBRTN 3
C7
C8
19, 20, 21, 22, 23, 24, 1 VID [7:1]
PGOOD
18 PGOOD
SS 4
C12
C13
R17
VTT
Function Block Diagram
C14
VOUT
Load
R12
VCC_SNS
VSS_SNS
OFS
FB
RT/EN
VID [7:1]
FBRTN
SS
PGOOD
Offset
Modulation
Waveform
Generator
VR11 VID
Table
VID Off
Soft Start
and
Fault Logic
VCC12
Fault Logic
Transient
Response
Enhancement
Driver
Logic
-
EA
+
+
CMP
-
PWM
OV
MOSFET
Driver
OT
Thermal
Protection
EAP
+-
+ 150mV
-
OC
+
/10
OV
OC
Control MOSFET Driver
POR
Power
On Reset
Current
Sense
5V
Regulator
BOOT
UGATE
PHASE
LGATE
GND
COMP
OCSET
ADJ
ISP
ISN
VCC12
VCC5
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2
DS8113-02 April 2011
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