SC1185 & SC1185A
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified
in the Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions for extended periods of time may affect device
reliability.
Parameter
VCC to GND
PGND to GND
BST to GND
Operating Temperature Range
Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 Sec.
Thermal Impedance Junction to Ambient
Thermal Impedance Junction to Case
Symbol
V
IN
Maximum
-0.3 to +7
+1
-0.3 to +15
Units
V
V
V
°C
°C
°C
°C
°C/W
°C/W
T
A
T
J
T
STG
T
L
θ
JA
θ
JC
0 to +70
0 to +125
-65 to +150
300
80
25
Electrical Characteristics
Unless specified: V
CC
= 4.75V to 5.25V; GND = P
GND
= 0V; V
OSENSE
= V
O
; 0mV < (CS+-CS-) < 60mV; LDOV = 11.4V to 12.6V; T
A
= 0 to 70°C
Parameter
Switching Section
Output Voltage
Supply Voltage
Supply Current
Load Regulation
Line Regulation
Current Limit Voltage
Oscillator Frequency
Oscillator Max Duty Cycle
Peak DH Sink/Source Current
Peak DL Sink/Source Current
Gain (A
OL
)
VID Source Current
VID Leakage
Power good threshold voltage
Dead time
2005 Semtech Corp.
Conditions
Min
Typ
Max
Units
I
O
= 2A in Application Circuit
VCC
VCC = 5.0V
I
O
= 0.8A to 15A
See Output Voltage Table
4.5
8
1
+0.15
60
125
90
70
140
95
85
160
7
15
V
mA
%
%
mV
kHz
%
A
mA
A
mA
35
1
10
10
88
40
100
100
112
dB
µA
µA
%
ns
www.semtech.com
BSTH - DH = 4.5V,
BSTL - DL = 4.5V,
V
OSENSE
to V
O
VIDx < 2.4V
VIDx < 2.4V
DH - PGNDH = 3.1V
DH - PGNDH = 1.5v
DL - PGNDL = 3.1V
DL - PGNDL = 1.5V
1
100
1
100
2
SEMTECH [ SEMTECH CORPORATION ]
