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參數(shù)資料
| 型號(hào)： | R1285L311A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, DSO12 |
| 封裝： | 2.70 X 3 MM, DFN-12 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大小： | 241K |
| 代理商： | R1285L311A |
R1285L
8
PVCC
LXN
VOUTN
CE
LXP1
LXP2
PGND
VOUTP
VCC
GND
VOUTP
VOUTN
EN control
C1
4.7uF
C2
10uF
C3
10uF
L1
L2
D1
D2
TST1
TST2
TYPICAL APPLICATION AND TECHNICAL NOTES
●R1285LxxxA
●R1285L00xB
●
Set a ceramic 4.7
μF or more capacitor between Vcc and GND as C1.
●
Set a ceramic10
μF or more capacitor between VOUTP and GND, and between VOUTN and GND for each as
C2 and C3.
●Start up Sequence
When CE level turns from ‘L’ to ‘H’ level, the softstart of CH1 starts the operation. After detecting output voltage of
CH1(VOUTP)as the nominal level, the soft start of CH2 starts the operation.
R1
R2
R3
C5
C4
PVCC
LXN
VOUTN
CE
LXP1
LXP2
PGND
VOUTP
VCC
GND
VOUTP
VOUTN
EN control
C1
4.7uF
C2
10uF
C3
10uF
L1
L2
D1
D2
VFBN
VREF
CE
0V
CH1 (VOUTP)
CH2 (VOUTN)
Soft start CH1
Soft Start CH2
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