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
Symbol
Maximum
Units
TON to AGND
-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
100
V
V
DH, BST to AGND
LX to AGND
V
AGND to PGND
V
BST to LX
V
VCCA, VDDP to AGND
V
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.
V
°C/W
°C
°C
°C
θJA
TJ
-40 to +125
-65 to +150
300
TSTG
TLEAD
Electrical Characteristics
Test Conditions: VIN = 2.5V, REFIN = 1.25, VCCA = VDDP = 5.0V, VOUT = 1.25V, RTON = 1M (300kHz), 0.1% Resistor Dividers
Parameter
Conditions
25°C
Typ
-40°C to 125°C
Units
Min
Max
Min
Max
Input Supplies
VCCA Input Voltage
VDDP Input Voltage
VIN Input Voltage
5.0
5.0
4.5
4.5
5.5
5.5
V
V
2.0
25
V
VDDP Operating Current
VCCA Operating Current
VCCA Standby Current
FB > regulation point, ILOAD = 0A
FB > regulation point, ILOAD = 0A
5
10
µA
µA
µA
700
125
1100
VDDP < VDDP UV Threshold
No Load On REFOUT
TON Operating Current
Shutdown Current
(REFIN = 0V)
RTON = 1M (300kHz)
15
µA
VCCA
5
5
10
10
µA
µA
VDDP + VIN
Controller
Error Comparator Threshold With Respect to REFOUT
REFOUT
REFOUT REFOUT mV
(FBK Turn-on Threshold) (1)
VCCA = 4.5V to 5.5V
-10
+10
2006 Semtech Corp.
2
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SEMTECH [ SEMTECH CORPORATION ]
