lm2746mxax National Semiconductor Corporation, lm2746mxax Datasheet - Page 3

• Manufacturer Part Number: lm2746mxax
• Description: Low Voltage N-channel Mosfet Synchronous Buck Regulator Controller
• Manufacturer: National Semiconductor Corporation

ERROR AMPLIFIER
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
V
junction temperature (T
tistical correlation. Typical values represent the most likely parametric norm at T
poses only.
V
BOOT Voltage
All other pins
Junction Temperature
Storage Temperature
Soldering Information
Lead Temperature
(soldering, 10sec)
CC
CC
Symbol
t
t
I
I
I
I
PWGD1
PWGD2
SEN-TH
Q_VCC
GBW
SS-ON
SS-OC
V
I
V
V
= 3.3V unless otherwise indicated. Limits in standard type are for T
SR
EAO
G
ON
FB
EA
FB Pin Voltage
UVLO Thresholds
Operating V
Shutdown V
PWGD Pin Response Time
PWGD Pin Response Time
SS Pin Source Current
SS Pin Sink Current During
Over Current
I
Point
Error Amplifier Unity Gain
Bandwidth
Error Amplifier DC Gain
Error Amplifier Slew Rate
EAO Pin Current Sourcing and
Sinking Capability
Error Amplifier Output Voltage
SEN
Pin Source Current Trip
J
) range of -40˚C to +125˚C. Minimum and Maximum limits are guaranteed through test, design, or sta-
Parameter
CC
CC
Current
Current
-0.3 to V
−65˚C to 150˚C
-0.3 to 6.25V
(Note 1)
-0.3 to 21V
CC
V
T
T
Rising
Falling
V
Fsw = 600kHz
V
Fsw = 600kHz
V
V
V
V
V
V
V
Minimum
Maximum
+ 0.3V
150˚C
260˚C
J
J
CC
CC
CC
CC
FB
FB
SS
SS
EAO
EAO
= −25˚C to +85˚C
= −40˚C to +125˚C
Rising
Falling
= 0V
= 2.5V
= 3V to 5.5V
= 3.3V, V
= 5V, V
= 3.3V, V
= 1.5, FB = 0.55V
= 1.5, FB = 0.65V
Conditions
3
SD
SD
SD
= 3.3V
Operating Ratings
Infrared or Convection (20sec)
ESD Rating (Note 2)
Supply Voltage Range (V
Power Stage Input Voltage (V
Junction Temperature Range
(T
Thermal Resistance (θ
= 3.3V
= 0V
J
)
J
= 25˚C only; limits in boldface type apply over the
J
= 25˚C, and are provided for reference pur-
0.594
0.592
JA
Min
1.0
1.0
25
7
)
CC
)
IN
)
2.76
2.42
Typ
100
106
0.6
0.6
1.5
1.7
3.2
2.6
9.2
3.3
10
10
10
40
1
9
0
−40˚C to +125˚C
0.606
0.608
Max
2.1
2.1
14
55
5
3V to 5.5V
www.national.com
1V to 16V
38˚C/W
235˚C
2 kV
Units
MHz
V/µs
mA
mA
µA
µA
µA
µA
dB
µs
µs
V
V
V
V