LP3991TL-1.2/NOPB National Semiconductor, LP3991TL-1.2/NOPB Datasheet - Page 5

• Manufacturer Part Number: LP3991TL-1.2/NOPB
• Description: IC VREG 300MA 1.2V 4MICROSMD
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LP3991TL-1.2/NOPB

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.2V
• Voltage - Input: 1.65 ~ 4 V
• 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: 1.2 V
• Output Type: Fixed
• 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-1.2EV - BOARD EVALUATION LP3991TL-1.2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Dropout (typical): -
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Details
• Other names: LP3991TL-1.2TR

C
OUT
Output Capacitor, Recommended Specifications
Note 17: The capacitor tolerance should be 30% or better over temperature. The full operating conditions for the application should be considered when selecting
a suitable capacitor to ensure that the minimum value of capacitance is always met. Recommended capacitor type is X7R or X5R. (See capacitor section in
Applications Hints)
Note 18: On lower voltage options, 2.2µF output capacitor may be used but some degradation in load transient (10 -15%) can be expected, compared to a 4.7µF.
Output Capacitor
Parameter
Capacitance
(Note
ESR
17)
Conditions
5
V
V
(Note
OUT
OUT
≥
< 1.5V
18)
1.5V
Typ
4.7
2.2
Min
1.6
2
5
Limit
Max
500
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Units
mΩ
µF