參數(shù)資料
型號: S-8340B00AFT-T2-U
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 690 kHz SWITCHING FREQ-MAX, PDSO8
封裝: HALOGEN FREE AND LEAD FREE, TSSOP-8
文件頁數(shù): 18/55頁
文件大小: 740K
代理商: S-8340B00AFT-T2-U
STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Rev.4.0_00
S-8340/8341 Series
Seiko Instruments Inc.
25
(2) Using Bipolar Transistor
CS
RS
R2
R1
CC
VSS
VOUT
VO UT
SD
CL
ON/OFF
VDD
L
EXT
VIN
CVREF
CVREF
CSS
CSS
NPN
Bipolar
T ransistor
120 mV
RSENSE
SENSE
PW M comparator
VREF =1.0 V
+
Cb
Triangular w ave
oscillation circuit
Phase
com pensation
circuit
IC internal power
supply
Error am plifier
PW M, PW M/PFM
switching control
circuit
Shutdown
circuit
Soft-start
circuit
Voltage/current
reference
Single ground
Rb
Figure 16 Output Voltage Fixed Output Type
Cb
CS
RS
RFB2
RFB1
CFB
VSS
VOUT
FB
SD
CL
ON/O FF
VDD
L
EXT
VIN
CVREF
CVREF
CSS
CSS
NPN
Bipolar
Transistor
120 mV
RSENSE
SENSE
PW M comparator
VREF =1.0 V
+
Triangular w ave
oscillation circuit
Phase
com pensation
circuit
IC internal pow er
supply
Error am plifier
PW M, PW M/PFM
switching control
circuit
Shutdown
circuit
Soft-start
circuit
Voltage/current
reference
Single ground
Rb
Figure 17 Output Voltage External Setting Type
Caution
The above connection and constant will not guarantee successful operation.
Perform thorough
evaluation using the actual application to set the constant.
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