參數(shù)資料
型號: TK71525ASCL
廠商: TOKO INC
元件分類: 基準電壓源/電流源
英文描述: LOW DROPOUT VOLTAGE REGULATOR
中文描述: 2.5 V FIXED POSITIVE LDO REGULATOR, 0.28 V DROPOUT, PDSO3
封裝: SOT-23, 3 PIN
文件頁數(shù): 11/13頁
文件大小: 76K
代理商: TK71525ASCL
January 1999 TOKO, Inc.
Page 11
TK715xx
In general, the capacitor should be at least 1
μ
F and be rated for the actual ambient operating temperature range. The
table below shows typical characteristics for several types and values of capacitance. Please note that the ESR varies
widely depending upon manufacturer, type, size, and material.
BOARD LAYOUT
Copper pattern should be as large as possible. Power dissipation is 350 mW for SOT-23-3. A low ESR capacitor is
recommended. For low temperature operation, select a capacitor with a low ESR at the lowest operating temperature
to prevent oscillation, degradation of ripple rejection and increase in noise. The minimum recommended capacitance is
2.2
μ
F.
The internal reverse bias protection eliminates the requirement for a reverse voltage protection diode. This saves both
cost and board space.
SOT-23-3 BOARD LAYOUT
Note: ESR is measured at 10 kHz.
ESR
Capacitance
Aluminum
Capacitor
Tantalum
Capacitor
Ceramic
Capacitor
1.0
μ
F
2.4
2.3
0.140
2.2
μ
F
2.0
1.9
0.059
3.3
μ
F
4.6
1.0
0.049
10
μ
F
1.4
0.5
0.025
APPLICATION INFORMATION (CONT.)
+
+
VIN
VOUT
GND
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