SC2442 Datasheet, PDF (2/10 Pages) Semtech Corporation – High Performance Wide Input Range Dual Synchronous Buck Controller

SC2442/H
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.
Parameter
Symbol
Maximum
BST1, BST2 to PGND
SC2442
SC2442H
VIN to PGND
SC2442
SC2442H
BDI to PGND
OC1 and OC2 to VIN
PVCC, AVCC to PGND
V_BST1, V_BST2
VIN
V_BDI
VIN - V_OC1, VIN - V_OC2
PVCC, AVCC
38
44
30
36
VIN
-0.3 to +0.5
8
BST1 to PH1, BST2 to PH2
GD1H to PH1, GD2H to PH2
GD1L, GD2L to PGND
-0.3 to 8
-0.3 to PVCC
PGND to AGND
±0.3
PH1, PH2 -ve swing wrt PGND (for 100 nS)
All Other Pins to AGND
V_PH1, V_PH2
-1
-0.3 to AVCC
Junction Temperature
-40 to +125
Storage Temperature Range
-60 to +150
Lead Temperature (Soldering) 10 Sec.
260
Units
V
V
V
V
V
V
V
V
V
V
°C
°C
°C
Electrical Characteristics
Unless specified: T = T = -40 to 125°C, VIN = 24V, V = 7V, Fc = 550KHz
AJ
CC
Parameter
Symbol
Test Conditions
Undervoltage Lockout
Start Threshold
UVLO Hysteresis
Power Supply
V_UVLO
V_HYST
AVCC rising
AVCC falling
Operating Current
AVCC/PVCC Regulated
I_QSC
AVCC, PVCC
No load, SYNC/EN = Low
VIN > 8V
BDI Drive Current
I_BDI
VIN > AVCC + 2V
Min Typ Max Unit
4.5 4.6 4.75 V
0.15
V
8
13 mA
6.7 7.0 7.3 V
3
5
mA
© 2007 Semtech Corp.
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