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SC4216 Datasheet(PDF) 4 Page - Semtech Corporation

Part No. SC4216
Description  Very Low Input /Very Low Dropout 3 Amp Regulator With Enable
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Maker  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
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SC4216 Datasheet(HTML) 4 Page - Semtech Corporation

   
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SC4216
4
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Dropout Voltage(1)(2)
V
DO
I
O =1.5A
250
350
mV
400
I
O = 2A
300
400
500
I
O = 2.5A
350
450
600
I
O =3A
450
550
700
I
O = 3A, 1.6V ≤ VIN ≤ 5.5V
400
500
650
Minimum Load Current(3)(4)
I
O
10
µA
Current Limit(4)
I
CL
3.5
4.5
5.0
A
Feedback
Reference Voltage(1)
V
REF
V
IN = 3.3V, VFB = VOUT , IO =10mA
0.495
0.5
0.505
V
0.490
0.510
Feedback Pin Current(4)
I
ADJ
V
FB = VREF
80
200
nA
Feedback Pin Threshold(5)
V
TH(FB)
0.05
0.10
0.15
V
EN
Enable Pin Current
I
EN
V
EN = 0V, VIN =3.3V
1.5
10
µA
Enable Pin Threshold
V
IH
V
IN=3.3V
1.6
V
V
IL
0.4
Over Temperature Protection
High Trip Level
T
HI
160
OC
Hysteresis
T
HYST
10
OC
Electrical Characteristics (continued)
Notes:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) V
DO = VIN -VO when VO decreases by 1.5% of its nominal output voltage with VIN = VO +0.8V.
(3) Required to maintain regulation. Voltage set resistors R1 and R2 are usually utilized to meet this requirement.
(4) Guaranteed by design.
(5) When V
FB exceeds this threshold, the “Sense Select” switch disconnects the internal feedback chain from the error ampli er and connects VFB
instead.


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