SC412A_1 Datasheet, PDF (2/22 Pages) Semtech Corporation – Synchronous Buck Controller

SC412A
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
Symbol
Min
Max
Units
DH, BST to GND (DC)
DH, BST to GND (transient - 100nsec max)
-0.3
-2.0
+30
+33
V
DL to GND (DC)
DL to GND (transient - 100nsec max)
-0.3
-2.0
+6.0
+6.0
V
LX to GND (DC)
LX to GND (transient - 100nsec max)
-0.3
-2.0
+25
+28
V
BST to LX
RTN to GND
VCC to RTN
EN, FB, ILIM, PGOOD, VCC, VOUT to RTN
Operating Junction Temperature Range
Storage Temperature Range
Thermal Resistance, Junction to Ambient⁽¹⁾
Peak IR Reflow Temperature, 10-40 Second
ESD Rating (Human Body Model)
-0.3
+6.0
V
-0.3
+0.3
V
-0.3
+6.0
V
-0.3
VCC + 0.3
V
T_J
-40
+125
o_C
T_STG
-60
+150
o_C
θ_JA
45
o_C/Watt
T_PKG
+260
o_C
2
kV
Note:
(1) Calculated from package in still air, mounted 3” to 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Electrical Characteristics
Test Conditions: V_BAT = 15V, V_OUT = 1.5V, T_A = 25 ^oC, 0.1% resistor dividers; V_CC = 5.0V, unless otherwise noted.
Parameter
Conditions
25°C
Min Typ Max
-40° to 85°C
Min
Max
Input Supplies
VBAT Input Voltage
VCC Shutdown Current
VCC Operating Current
Controller
EN = 0V
FB > REF
3.0
25
1
500
5
1000
FB On-Time Threshold
Regulation
0.75
0.7425 0.7575
Line Regulation Error
Typical Application Circuit
0.04
Load Regulation Error
Typical Application Circuit
0.3
Units
V
μA
μA
V
%/V
%
© 2006 Semtech Corp.
2
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