lm25119psqx National Semiconductor Corporation, lm25119psqx Datasheet - Page 5

• Manufacturer Part Number: lm25119psqx
• Description: Lm25119 Wide Input Range Dual Synchronous Buck Controller
• Manufacturer: National Semiconductor Corporation

Symbol
VIN Supply
VCC Regulator
EN2 Input
UVLO
Soft Start
I
VIN to AGND
SW1, SW2 to AGND
HB1 to SW1, HB2 to SW2
VCC1, VCC2 to AGND
(Note
FB1, FB2, DEMB, RES,
VCCDIS, UVLO to AGND
HO1 to SW1, HO2 to SW2
LO1, LO2 to AGND
SS1, SS2 to AGND
EN2, RT to AGND
SHUTDOWN
V
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
junction temperature range of -40°C to +125°C. Unless otherwise specified, the following conditions apply: VIN = 12V, VCC = 8V,
VCCDIS = 0V, EN2 = 5V, R
(Note
CC(REG)
I
I
BIAS
V
VCC
V
IH
IL
2)
4) and
Parameter
VIN Operating Current
VCC1 Operating Current
VCC2 Operating Current
VIN Shutdown Current
VCC Regulation
VCC Regulation
VCC Sourcing Current Limit
VCCDIS Switch Threshold
VCCDIS Switch Hysteresis
VCCDIS Input Current
VCC Under-voltage Threshold
VCC Under-voltage Hysteresis
EN2 Input Low Threshold
EN2 Input High Threshold
EN2 Input pull-up resistor
UVLO Threshold
UVLO Hysterisis Current
UVLO Shutdown Threshold
UVLO Shutdown Hysterisis Voltage
SS Current Source
SS Pull Down R
(Note
(Note
5).
6)
DSON
T
= 25kΩ, no load on LO and HO. Electrical characteristics are per channel where applicable. See
-0.3 to VCC+0.3V
Limits in standard type are for T
-0.3 to HB+0.3V
(Note
Conditions
SS1 = SS2 = 0V
VCCDIS = 2V, SS1 = SS2 = 0V
VCCDIS = 2V, SS1 = SS2 = 0V
VCCDIS = 2V, SS1 = SS2 = 0V
UVLO = 0V, SS1 = SS2 = 0V
VIN = 4.5V, No external load
VCC = 0V
VCCDIS Rising
VCCDIS = 0V
Positive going VCC
UVLO Rising
UVLO = 1.4V
SS = 0V
-0.3 to 45V
-3.0 to 45V
-0.3 to 15V
-0.3 to 15V
-0.3 to 15V
-0.3 to 7V
-0.3 to 7V
1)
5
CS1, CS2, CSG1, CSG2 to
AGND
PGND to AGND
ESD Rating HBM
Storage Temperature
Junction Temperature
Operating Ratings
Note: COMP1, COMP2, RAMP1, and RAMP2 are output pins. As such they
are not specified to have an external voltage applied.
VIN
VCC
HB to SW
Junction Temperature
J
= 25°C only; limits in boldface type apply over the
(Note
6.77
1.19
1.20
3)
Min
4.4
3.8
2.9
25
15
7
(Note
4.46
1.25
0.07
1.25
Typ
340
-20
3.9
1.4
7.6
4.0
0.2
2.0
2.5
0.4
0.1
15
40
50
20
10
10
6
1)
-40°C to +125°C
Max
8.34
1.29
1.29
500
-55°C to +150°C
7.3
4.5
2.0
4.2
1.5
33
25
13
-0.3V to 0.3V
-0.3V to 0.3V
4.5V to 42V
4.5V to 14V
4.5V to 14V
www.national.com
+150°C
Units
mA
mA
mA
mA
kΩ
µA
µA
nA
µA
µA
Ω
V
V
V
V
V
V
V
V
V
V
V
2kV