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參數資料
| 型號： | R1515S037B-E2-FE |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 固定正電壓單路輸出標準穩(wěn)壓器 |
| 英文描述： | FIXED POSITIVE REGULATOR, PDSO6 |
| 封裝： | HALOGEN FREE AND LEAD FREE, HSOP-6 |
| 文件頁數： | 11/14頁 |
| 文件大小： | 241K |
| 代理商： | R1515S037B-E2-FE |
R1515x
6
TYPICAL APPLICATION
C1
R1515x
Series
VDD
VOUT
CE
GND
C2
C1=Ceramic 0.1
μF
C2=Ceramic 0.1
μF
VOUT
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
μF to 10μF. Wiring should be made as short as possible.
Connect the capacitor, C1 between VDD pin and GND pin and C2 between VOUT 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 VCEH and VCEL. Otherwise, the
output voltage would be unstable or indefinite, or unexpected current would flow internally.
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