LP3991TL-2.8/NOPB National Semiconductor, LP3991TL-2.8/NOPB Datasheet - Page 2

• Manufacturer Part Number: LP3991TL-2.8/NOPB
• Description: IC VREG 300MA 2.8V 4MICROSMD
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LP3991TL-2.8/NOPB

• Regulator Topology: Positive Fixed
• Voltage - Output: 2.8V
• Voltage - Input: Up to 4V
• Voltage - Dropout (typical): 0.075V @ 300mA
• Number Of Regulators: 1
• Current - Output: 300mA (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 4-MicroSMD
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 4 V
• Output Voltage: 2.8 V
• Output Type: Fixed
• Dropout Voltage (max): 0.08 V at 150 mA
• Output Current: 0.3 A
• Voltage Regulation Accuracy: +/- 1 %
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: LP3991TL-1.8EV - BOARD EVALUATION LP3991TL-1.8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Details
• Other names: LP3991TL-2.8TR

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Output Voltage (V)
Pin Descriptions
Connection Diagram
Ordering Information (4-Bump Micro SMD)
Only available as Lead Free.
* Contact your local NSC Sales Office for availability
1.55
0.8
1.2
1.3
1.5
1.7
1.8
2.0
2.5
2.8
3.0
Pin No.
B1
A1
A2
B2
Grade
STD
STD
STD
STD
STD
STD
STD
STD
STD
STD
STD
Symbol
GND
V
V
V
OUT
EN
IN
4 Bump Thin Micro SMD, Large Bump
LP3991 Supplied as 250 Units, Tape and
See NS package number TLA04
Voltage output. A Low ESR Ceramic Capacitor should be
connected from this pin to GND. (See Application Information)
Connect this output to the load circuit.
Common Ground. Connect to Pad.
Enable Input; Enables the Regulator when
Disables the Regulator when
Enable Input has an internal 1.2MΩ pull-down resistor to GND.
Voltage Supply Input. A 1.0µF capacitor should be connected
from this pin to GND.
LP3991TL-1.55
LP3991TL-0.8
LP3991TL-1.2
LP3991TL-1.3
LP3991TL-1.5
LP3991TL-1.7
LP3991TL-1.8
LP3991TL-2.0
LP3991TL-2.5
LP3991TL-2.8
LP3991TL-3.0
Packages
Reel
2
Name and Function
≤
0.4V.
LP3991 Supplied as 3000 Units, Tape
≥
0.95V.
LP3991TLX-1.55
LP3991TLX-0.8
LP3991TLX-1.2
LP3991TLX-1.3
LP3991TLX-1.5
LP3991TLX-1.7
LP3991TLX-1.8
LP3991TLX-2.0
LP3991TLX-2.5
LP3991TLX-2.8
LP3991TLX-3.0
and Reel
20110006