LM2703MFX-ADJ National Semiconductor, LM2703MFX-ADJ Datasheet - Page 2

• Manufacturer Part Number: LM2703MFX-ADJ
• Description: Conv DC-DC Single Step Up 2.2V to 7V 5-Pin SOT-23 T/R
• Manufacturer: National Semiconductor
• Type: Step Upr

Specifications of LM2703MFX-ADJ

• Package: 5SOT-23
• Number Of Outputs: 1
• Minimum Input Voltage: 2.2 V
• Maximum Input Voltage: 7 V
• Operating Supply Voltage: 2.2 to 7 V
• Output Type: Adjustable
• Output Voltage: 21(Max) V
• Switching Regulator: Yes
• Efficiency: 80 %
• Operating Temperature: -40 to 125 °C

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Connection Diagram
Ordering Information
Pin Descriptions/Functions
SW(Pin 1): Switch Pin. This is the drain of the internal
NMOS power switch. Minimize the metal trace area con-
nected to this pin to minimize EMI.
GND(Pin 2): Ground Pin. Tie directly to ground plane.
FB(Pin 3): Feedback Pin. Set the output voltage by selecting
values for R1 and R2 using:
LM2703MFX-ADJ
LM2703MF-ADJ
Order Number
Pin
1
2
3
4
5
SHDN
Name
GND
SW
V
FB
IN
Package Type
SOT23-5
SOT23-5
Power Switch input.
Ground.
Output voltage feedback input.
Shutdown control input, active low.
Analog and Power input.
T
Jmax
= 125˚C, θ
NSC Package Drawing
Top View
MA05B
MA05B
SOT23-5
JA
2
= 220˚C/W (Note 2)
Connect the ground of the feedback network to an AGND
plane which should be tied directly to the GND pin.
SHDN(Pin 4): Shutdown Pin. The shutdown pin is an active
low control. Tie this pin above 1.1V to enable the device. Tie
this pin below 0.3V to turn off the device.
V
as close to the device as possible.
IN
(Pin 5): Input Supply Pin. Bypass this pin with a capacitor
Function
Top Mark
20030602
S48B
S48B
1000 Units, Tape and Reel
3000 Units, Tape and Reel
Supplied As