參數資料
型號: S-8521C31MC-BTQ-T2
元件分類: 穩(wěn)壓器
英文描述: 0.05 A SWITCHING CONTROLLER, 75 kHz SWITCHING FREQ-MAX, PDSO5
封裝: SOT-23, 5 PIN
文件頁數: 13/43頁
文件大?。?/td> 488K
代理商: S-8521C31MC-BTQ-T2
STEP-DOWN, PWM CONTROL or PWM / PFM SWITCHABLE SWITCHING REGULATOR CONTROLLOR
S-8520 / 8521 Series
Rev.7.5_00
20
Seiko Instruments Inc.
Standard Circuits
1. Using a bipolar transistor
VSS
VOUT
+
VIN
CIN
L
SD
COUT
OFF
/
ON
Reference voltage
source with soft start
VIN
Tr
Cb
Rb
EXT
OFF
/
ON
V
+
PWM control or
PWM/PFM switching
cotrol circuit
Oscillation
circuit
Figure 12
2. Using a Pch MOS FET transistor
VSS
VOUT
L
SD
COUT
+
VIN
Tr
+
EXT
VIN
CIN
OFF
/
ON
OFF
/
ON
V
Oscillation
circuit
Reference voltage
source with soft start
PWM control or
PWM/PFM switching
control circuit
Figure 13
Caution The above connection diagram and constant will not guarantees successful operation.
Perform through evaluation using the actual application to set the constant.
相關PDF資料
PDF描述
S-8520B31MC-ARQ-T2 0.05 A SWITCHING CONTROLLER, 216 kHz SWITCHING FREQ-MAX, PDSO5
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