參數(shù)資料
型號(hào)： SC1566I5M-1.8T
元件分類： 可調(diào)正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器
英文描述： 1.764 V-1.836 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PSSO5
封裝： TO-263, 5 PIN
文件頁(yè)數(shù)： 3/9頁(yè)
文件大?。?/td> 127K
代理商： SC1566I5M-1.8T
1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
VERY LOW DROPOUT 3 AMP
REGULATOR WITH ENABLE
SC1566
July 28, 1999
3
NOTES:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) Defined as the input to output differential at which the output voltage drops to 1% below the value measured at
a differential of 0.7V.
(3) Guaranteed by design.
(4) When V
ADJ exceeds this threshold, the “Sense Select” switch disconnects the internal feedback chain from the
error amplifier and connects V
ADJ instead.
(5) Required to maintain regulation. Voltage set resistors R1 and R2 are usually utilized to meet this requirement.
Adjustable versions only.
ELECTRICAL CHARACTERISTICS
Unless specified: V
EN = VIN
Adjustable Option: V
IN = 2.2 to 5.5V and IO = 10mA to 3.0A
Fixed Options: V
IN = (VO + 0.7V) to 5.5V and IO = 0mA to 3.0A
Values in bold apply over the full operating temperature range.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Output Voltage
(1)
V
O
V
IN = VO + 0.7V, IO = 10mA
0.99V
O
V
O
1.01V
O
V
(Internal Fixed Voltage)
0.98V
O
V
O
1.02V
O
Reference Voltage
(1)
V
REF
V
IN = 2.2V, IO = 10mA
1.188
1.200
1.212
V
(5-Pin Versions)
1.176
1.224
Line Regulation
(1)
REG
(LINE)
V
IN = (VO + 0.25V) to 5.5V,
I
OUT = 10mA
0.035
0.3
%
Load Regulation
(1)
REG
(LOAD)
V
IN = VO + 0.7V
0.2
0.4
%
Dropout Voltage
(2)
V
D
I
LOAD = 10mA
1
5
mV
10
I
LOAD = 500mA
75
100
mV
150
I
LOAD = 1.5A
200
300
mV
400
I
LOAD = 3A
350
450
mV
600
Quiescent Current
I
Q
V
IN = 3.3V
0.75
1.75
mA
V
IN = 5.5V, VEN = 0V
10
35
A
Adjust Pin Current
(3)
I
ADJ
V
ADJ = VREF
10
50
nA
Adjust Pin Threshold
(4)
V
TH(ADJ)
0.10
0.20
0.40
V
Enable Pin Current
I
EN
V
EN = 0V
1.5
10
A
Enable Pin Threshold
V
IH
V
IN = 3.3V
2.0
V
IL
V
IN = 3.3V
0.4
Minimum Load Current
(5)
I
O
V
IN = VO + 0.7V
1
10
A
Current Limit
I
CL
3.0
4.5
6.5
A
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