參數(shù)資料
型號(hào)： S-8328B50MA-EXE-T2
元件分類： 穩(wěn)壓器
英文描述： 0.3 A SWITCHING CONTROLLER, 115 kHz SWITCHING FREQ-MAX, PDSO3
封裝： PLASTIC, SOT-23, 3 PIN
文件頁數(shù)： 10/65頁
文件大小： 759K
代理商： S-8328B50MA-EXE-T2
SMALL PACKAGE PWM/PFM CONTROL STEP-UP SWITCHING REGULATOR
S-8324/8328 Series
Rev. 7.2_10
18
Seiko Instruments Inc.
External Parts Selection for DC-DC Converter
The relationship between majorcharacteristics of the step-up circuit and characteristics parameters of the external parts are shown in
Figure 6.
for large output current?
for high efficiency?
for small ripple voltage
operation efficiency
stand-by efficiency
Figure 6 Relationship between major character stics of the step-up circuit and external parts
small inductance
large inductance
small DC resistance of inductor
large output capacitance
built-in switching
transistor
external switching transistor
(small ON resistance)
small resistance of external resistor
Rb when an external switching
transistor is used
large resistance of
external resistor Rb when
an external switching
transistor is used
DISCONTINUED
PRODUCT
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