參數(shù)資料
型號(hào)： R1515H079B
廠(chǎng)商： Ricoh Co., Ltd.
英文描述： 50mA VOLTAGE REGULATOR (Wide Input Voltage Range)
中文描述： 50mA穩(wěn)壓器（寬輸入電壓范圍）
文件頁(yè)數(shù)： 6/20頁(yè)
文件大?。?/td> 257K
代理商： R1515H079B
R1515x
TYPICAL APPLICATION
6
C1
R1515x
Series
V
DD
V
OUT
CE
GND
C2
C1=Ceramic 0.1
μ
F
C2=Ceramic 0.1
μ
F
V
OUT
TECHNICAL NOTES
When using these ICs, consider the following points:
Phase Compensation
Phase Compensation of the R1515x Series has been made internally for stable operation even though the
load current would vary. Therefore, without the capacitors, C1 and C2, the output voltage is regulated, however,
for more stable operation, use capacitors as C1 and C2. Especially, if the input line is long and impedance is high,
C1 is necessary. Moreover, if you use rather large C2, transient response will be improved. Recommended value
is in the range from 0.1
μ
F to 10
μ
F. Wiring should be made as short as possible.
Connect the capacitor, C1 between V
DD
pin and GND pin and C2 between V
OUT
and GND as close as possible.
GND wiring of mounting on board
No.2 pin and No.4 pin of SOT-89-5 package must be wired to the GND plane. No.2 pin, No.4 pin and No.5 pin
of HSOP-6J package must be wired to the GND plane when it is mounted on board.
Thermal Shutdown
Thermal shutdown function is included in the R1515x Series, if the junction temperature is equal or more than
+150
°
C (Typ.), the operation of regulator would stop. After that, when the junction temperature is equal or less
than +125
°
C (Typ.), the operation of regulator would restart. Unless the cause of rising temperature would
remove, the regulator repeats on and off, and output waveform would be like consecutive pulses.
Chip Enable Circuit
Do not make voltage level of chip enable pin keep floating level, or in between V
CEH
and V
CEL
. Otherwise, the
output voltage would be unstable or indefinite, or unexpected current would flow internally.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R1515H080B 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:50mA VOLTAGE REGULATOR (Wide Input Voltage Range)
R1515H081B 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:50mA VOLTAGE REGULATOR (Wide Input Voltage Range)
R1515H082B 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:50mA VOLTAGE REGULATOR (Wide Input Voltage Range)
R1515H083B 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:50mA VOLTAGE REGULATOR (Wide Input Voltage Range)
R1515H084B 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:50mA VOLTAGE REGULATOR (Wide Input Voltage Range)
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