SC1480
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.
Pin Combination
TON to AGND
DH, BST to AGND
LX to AGND
AGND to PGND
BST to LX
VCCA, VDDP to AGND
FB, PGOOD, REFIN, ILIM, REFOUT, DL to PGND
Thermal Resistance, Junction to Ambient
(4)
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 Sec.
Symbol
Maximum
-0.3 to +25.0
-0.3 to +30.0
-2.0 to +25.0
-0.3 to +0.3
-0.3 to +6.0
-0.3 to +6.0
-0.3 to +6.0
Units
V
V
V
V
V
V
V
°C/W
°C
°C
°C
θ
JA
T
J
T
STG
T
LEAD
100
-40 to +125
-65 to +150
300
Electrical Characteristics
Test Conditions: V
IN
= 2.5V, REFIN = 1.25, VCCA = VDDP = 5.0V, V
OUT
= 1.25V, R
TON
= 1M (300kHz), 0.1% Resistor Dividers
Parameter
Conditions
Min
25°C
Typ
Max
-40°C to 125°C
Min
Max
Units
Input Supplies
VCCA Input Voltage
VDDP Input Voltage
VIN Input Voltage
VDDP Operating Current
VCCA Operating Current
VCCA Standby Current
TON Operating Current
Shutdown Current
(REFIN = 0V)
VC C A
VDDP + VIN
Controller
Error Comparator Threshold
(FBK Turn-on Threshold)
(1)
2006 Semtech Corp.
5.0
5.0
2.0
FB > regulation point, I
LOAD
= 0A
FB > regulation point, I
LOAD
= 0A
VDDP < VDDP UV Threshold
No Load On REFOUT
R
TON
= 1M
(300kHz)
5
700
125
15
25
4.5
4.5
5.5
5.5
V
V
V
10
1100
µA
µA
µA
µA
5
5
10
10
µA
µA
With Respect to REFOUT
VCCA = 4.5V to 5.5V
2
REFOUT
REFOUT REFOUT
-10
+10
mV
www.semtech.com
SEMTECH [ SEMTECH CORPORATION ]
