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參數(shù)資料
| 型號： | SC8863-250CSK |
| 廠商： | Semtech Corporation |
| 英文描述： | 150mA ULTRA LOW DROPOUT, LOW NOISE REGULATOR |
| 中文描述： | 150mA的超低壓降，低噪聲穩(wěn)壓器 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 92K |
| 代理商： | SC8863-250CSK |
150mA ULTRA LOW DROPOUT,
LOW NOISE REGULATOR
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
SC8863
March 1, 2000
2
PIN DESCRIPTIONS
Pin #
Pin Name
Description
1
EN
Active high enable pin. Connect to VIN if not being used.
2
GND
Ground pin. Can be used for heatsinking if needed.
3
IN
Input pin.
4
OUT
Regulator output, sourcing up to 150mA
5
SET
Connecting this pin to ground results in the internally preset value for
V
OUT
. Connecting to an external resistor divider changes V
OUT
to:
TYPICAL APPLICATION - EXTERNALLY SET OUTPUT VOLTAGE
(1)
TYPICAL APPLICATION - INTERNALLY PRESET OUTPUT VOLTAGE
VIN > VOUT + VD(MAX)
VOUT @ IOUT up to 150mA
U1
SC8863
1
2
3
4
5
EN
GND
VIN
VO
SET
C1
1uF Ceramic
C2
1uF Ceramic
+
=
2
R
1
R
1
250
.
V
OUT
NOTES:
(1) Select R1 and R2 such that the current flowing through them is
≥
10μA (i.e. R2
≤
120k
). A value of 10k
is
recommended for R2. Please see Component Selection - Externally Set Output.
VOUT @ IOUT up to 150mA
VIN > VOUT + VD(MAX)
C2
2.2uF Ceramic
U1
SC8863
1
2
3
4
5
EN
GND
VIN
VO
SET
R1
R2
10k
C1
1uF Ceramic
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