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參數(shù)資料
| 型號： | R1514H033B |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | Replacement for National Semiconductor part number DM74LS132N. Buy from authorized manufacturer Rochester Electronics. |
| 中文描述： | 150mA的穩(wěn)壓器（寬輸入電壓范圍） |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 254K |
| 代理商： | R1514H033B |
R1514x
TYPICAL APPLICATION
6
C1
R1514x
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 R1514x 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 R1514x 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.
相關PDF資料 |
PDF描述 |
|---|---|
| R1514H034B | 150mA VOLTAGE REGULATOR (Wide Input Voltage Range) |
| R1514H035B | Replacement for National Semiconductor part number DM74LS174M. Buy from authorized manufacturer Rochester Electronics. |
| R1514H036B | Replacement for National Semiconductor part number DM74LS174N. Buy from authorized manufacturer Rochester Electronics. |
| R1514H037B | 150mA VOLTAGE REGULATOR (Wide Input Voltage Range) |
| R1514H038B | 150mA VOLTAGE REGULATOR (Wide Input Voltage Range) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| R1514H034B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:150mA VOLTAGE REGULATOR (Wide Input Voltage Range) |
| R1514H035B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:150mA VOLTAGE REGULATOR (Wide Input Voltage Range) |
| R1514H036B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:150mA VOLTAGE REGULATOR (Wide Input Voltage Range) |
| R1514H037B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:150mA VOLTAGE REGULATOR (Wide Input Voltage Range) |
| R1514H038B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:150mA VOLTAGE REGULATOR (Wide Input Voltage Range) |
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