LM2743MTC National Semiconductor, LM2743MTC Datasheet - Page 4

• Manufacturer Part Number: LM2743MTC
• Description: SYNC SW CONTROL, 3V:6V, POWERWISE
• Manufacturer: National Semiconductor

Specifications of LM2743MTC

• Primary Input Voltage: 16V
• No. Of Outputs: 1
• Output Voltage: 13.5V
• Output Current: 20A
• Voltage Regulator Case Style: TSSOP
• No. Of Pins: 14
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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GATE DRIVE
OSCILLATOR
LOGIC INPUTS AND OUTPUTS
V
V
V
Electrical Characteristics
V
boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are guaranteed by design,
test, or statistical analysis.
PWGD-TH-LO
Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions for which the device
operates correctly. Opearting Ratings do not imply guaranteed performance limits.
Note 2: The power MOSFETs can run on a separate 1V to 16V rail (Input voltage, V
Note 3: The human body model is a 100pF capacitor discharged through a 1.5k resistor into each pin.
Note 4: Shutdown V
PWGD-TH-HI
V
V
PWGD-HYS
Symbol
I
CC
Q-BOOT
V
V
STBY-IH
R
R
R
R
F
STBY-IL
SD-IH
SD-IL
OSC
DS1
DS2
DS3
DS4
D
= 3.3V unless otherwise indicated. Typicals and limits appearing in plain type apply for T
BOOT Pin Quiescent Current
Top FET Driver Pull-Up ON
resistance
Top FET Driver Pull-Down ON
resistance
Bottom FET Driver Pull-Up ON
resistance
Bottom FET Driver Pull-Down
ON resistance
PWM Frequency
Max Duty Cycle
Standby High Trip Point
Standby Low Trip Point
SD Pin Logic High Trip Point
SD Pin Logic Low Trip Point
PWGD Pin Trip Points
PWGD Pin Trip Points
PWGD Hysteresis
CC
current goes to zero amps after 20 seconds.
Parameter
(Continued)
BOOTV = 12V, EN = 0
BOOT-SW = 5V
R
R
R
R
R
f
f
FB = 0.575V, BOOTV = 3.3V, EN =
0V to 3.3V
FB = 0.575V, BOOTV = 3.3V, EN =
3.3V to 0V
FB = 0.575V, BOOTV = 3.3V, EN =
0V to 3.3V
FB = 0.575V, BOOTV = 3.3V, EN =
3.3V to 0V
FB Voltage Going Down
FB Voltage Going Up
FB Voltage Going Down
FB Voltage Going Up
PWM
PWM
FADJ
FADJ
FADJ
FADJ
FADJ
= 300kHz
= 600kHz
= 813.2kΩ
= 117.6kΩ
= 54.4kΩ
= 18.8kΩ
= 10.8kΩ
Conditions
4
@
350mA
IN
). Low range of V
IN
greatly depends on selection of the external MOSFET.
0.232
0.408
0.677
Min
475
0.8
A
= T
J
= +25˚C. Limits appearing in
0.756
0.562
0.434
0.710
1400
2000
Typ
300
600
1.1
18
50
90
85
60
90
3
2
3
2
1
0.457
0.742
Max
725
1.1
1.3
90
Units
kHz
mV
µA
%
Ω
Ω
Ω
Ω
V
V
V
V
V
V