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SC1186 View Datasheet(PDF) - Semtech Corporation

Part NameDescriptionManufacturer
SC1186 Programmable Synchronous DC/DC Converter, Dual LDO Controller Semtech
Semtech Corporation Semtech
SC1186 Datasheet PDF : 15 Pages
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SC1186
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified: VCC = 4.75V to 5.25V; GND = PGND = 0V; VOSENSE = VO; 0mV < (CS+-CS-) < 60mV; LDOV = BST = 11.4V to 12.6V; TA = 0 to 70°C
Parameter
Conditions
Min
Typ
Max
Units
Linear Sections
Quiescent Current
LDOV = 12V
5
mA
Output Voltage LDO1
2.493 2.525
2.556
V
Output Voltage LDO2
1.496 1.515
1.534
V
Reference Voltage
Iref < 100uA
1.246 1.265
1.284
V
Gain (AOL)
Load Regulation
Line Regulation
LDOS (1,2) to GATE (1,2)
IO = 0 to 8A
90
dB
0.3
%
0.3
%
Output Impedance
LDOV Undervoltage Lockout
VGATE = 6.5V
1
1.5
k
6.5
8.0
10
V
LDOEN Threshold
1.3
1.9
V
LDOEN Sink Current
LDOEN = 3.3V
LDOEN = 0V
0.01
1.0
µA
-200
-300
µA
Overcurrent Trip Voltage
% of Vo set point
20
40
60
%
Power-up Output Short Circuit Immunity
1
5
60
ms
Output Short Circuit Glitch Immunity
0.5
4
20
ms
Gate Pulldown Impedance
GATE (1,2) -AGND;
VCC+BST=0V
80
300
750
k
VOSENSE Impedance
10
k
Note:
(1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
(2) See Gate Resistor Selection recomendations.
2004 Semtech Corp.
3
www.semtech.com
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