參數(shù)資料
型號: S-8357G33MC-MIST2U
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO5
封裝: HALOGEN FREE AND LEAD FREE, SOT-23, 5 PIN
文件頁數(shù): 12/77頁
文件大小: 836K
代理商: S-8357G33MC-MIST2U
STEP-UP, SUPER-SMALL PACKAGE, 600 kHz, PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8355/56/57/58 Series
Rev.7.0_00
Seiko Instruments Inc.
2
Block Diagrams
(1) S-8357/58 Series B, H and F Types
(Without Shutdown Function)
(2) S-8357/58 Series B, H, F and N Types
(With Shutdown Function)
VOUT
EXT
VSS
PWMcontrol circuit or
PWM / PFM switching
control circuit
Oscillation circuit
Soft start built-in
reference power
supply
Phase
compensation
circuit
IC internal
power supply
+
VOUT
VSS
EXT
Phase
compensation
circuit
Soft start built-in
reference power
supply
PWMcontrol circuit or
PWM / PFM switching
control circuit
Oscillation circuit
OFF
/
ON
IC internal
power
supply
+
Figure 1
Figure 2
(3) S-8357/58 Series E, J, G and P Types
(VDD / VOUT Separate Type)
(4) S-8355/56 Series K, L, M and Q Types
(With Shutdown Function, VDD / VOUT Separate Type)
EXT
VSS
Oscillation circuit
PWMcontrol circuit or
PWM / PFM switching
control circuit
Soft start built-in
reference power
supply
VOUT
VDD
Phase
compensation
circuit
IC internal
power
supply
+
EXT
VDD
VOUT
VSS
Oscillation circuit
PWMcontrol circuit or
PWM / PFM switching
control circuit
+
Soft start built-in
reference power
supply
Phase
compensation
circuit
IC internal
power
supply
OFF
/
ON
Figure 3
Figure 4
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