LM2830XMF National Semiconductor, LM2830XMF Datasheet - Page 3

• Manufacturer Part Number: LM2830XMF
• Description: BUCK REG 1A 1.6MHZ, SMD, SOT-23-5
• Manufacturer: National Semiconductor

Specifications of LM2830XMF

• Primary Input Voltage: 5.5V
• No. Of Outputs: 1
• Output Voltage: 4.5V
• Output Current: 1A
• Voltage Regulator Case Style: SOT-23
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin Descriptions 5-Pin SOT23
Pin Descriptions 6-Pin LLP
Pin
DAP
1
2
3
4
5
Pin
1
2
3
4
5
6
Die Attach Pad
Name
GND
VIN
SW
EN
FB
Name
VIND
VINA
GND
SW
FB
EN
Function
Output switch. Connect to the inductor and catch diode.
Signal and power ground pin. Place the bottom resistor of the feedback network as close as
possible to this pin.
Feedback pin. Connect to external resistor divider to set output voltage.
Enable control input. Logic high enables operation. Do not allow this pin to float or be
greater than VIN + 0.3V.
Input supply voltage.
Function
Feedback pin. Connect to external resistor divider to set output voltage.
Signal and power ground pin. Place the bottom resistor of the feedback network as
close as possible to this pin.
Output switch. Connect to the inductor and catch diode.
Power Input supply.
Control circuitry supply voltage. Connect VINA to VIND on PC board.
Enable control input. Logic high enables operation. Do not allow this pin to float or be
greater than VINA + 0.3V.
Connect to system ground for low thermal impedance, but it cannot be used as a
primary GND connection.
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