SC2618
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
Input Supply Voltage
Boost Supply Voltage
FB Voltage
DL to GND
DH to GND
Operating Ambient Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10s
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
ESD Rating (Human Body Model)
Symbol
V
CC
V
BST
V
FB
V
DL
V
DH
T
A
T
J
T
STG
T
LEAD
θ
JA
θ
JC
ESD
Maximum
15
30
8
-1 to V
CC
+0.3
-1 to V
BST
+0.3
-40 to +85
-40 to 125
-65 to 150
300
96
62
2
(1)
Units
V
V
V
V
V
°C
°C
°C
°C
°C/W
°C/W
kV
Note: (1) 1 square inch of FR4, double sided, 1oz, minimum copper weight
Electrical Characteristics
Unless specified: V
CC
= V
IN
= 5V, V
BST
= 12V, V
FB
= V
O
; T
A
= 25°C. Values in
bold
are over full operating temperature range.
Parameter
VC C Supply Voltage
VC C Qui escent C urrent
VC C Under Voltage Lockout
Boost Supply Voltage
Boost Qui escent C urrent
Soft Start Ti me
Output Voltage
Symbol
V
CC
I
QVCC
UV
VCC
V
BST
I
QBST
Tss
V
FB
= 1.200V
C onditions
Min
4.75
Typ
Max
14
U nits
V
mA
V
V
mA
us
V
CC
= 5.0V, V
REF
= 0V, V
FB
= 100mV
4.0
5
4.2
10
4.5
29
3
100
1.237
1.250
1.263
1.275
1
±0.5
V
O
Load Regulati on
Li ne Regulati on
Short C i rcui t Tri p Voltage
Mi ni mum ON/OFF Ti me
FB bi as current
Peak D H Si nk/Source C urrent
Peak D L Si nk/Source C urrent
D H, D L Nonoverlappi ngTi me
2004 Semtech Corp.
I
O
= 20mA; V
FB
= V
O
I
O
= 0.2A to 4A
1.225
V
%
%
V
us
V
SCT
t
DEL
I
FB
V
FB
= 1.25V
BST - D H = 4.5V,
BST - D L = 4.5V,
D H - GND = 3.5V
D H - GND = 1.5V
D L - GND = 3.5V
D L - GND = 1.5V
0.5
50
0.5
50
20
1.05
1
-1
uA
A
mA
A
mA
C
LOAD
=1000pF; Measured at D H/D L = 2V
2
50
ns
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