LOWPOWER

LP3980-28B5F

2.8V Positive Fixed SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

SOT-23-5RoHSActive

Ultra-low noise, Small Package Ultra-Fast CMOS LDO Regulator

Manufacturer: LOWPOWER
Manufacturer part #: LP3980-28B5F
Store part #: C517192
Package / case: SOT-23-5
Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Packaging: Tape & Reel (TR)

Datasheet (PDF)

Every Order Guarantee

100% Authentic · 30-Day Return or Replacement · policy

1,970 in stock

#C517192

Stock & price checked 5 days ago

Quantity	Unit price	Pack price
10+	₹8.89	₹88.90
100+	₹7.03	₹703.00
300+	₹6.10	₹1,830.00
3,000+	₹5.40	₹16,200.00
6,000+	₹4.84	₹29,040.00
9,000+	₹4.56	₹41,040.00

Quantity (min 10, multiples of 10)

10 × ₹8.89

₹88.90

excl. GST

₹104.90 incl. 18% GST

Need volume or a scheduled delivery? Request a quote

Dispatch in 7–10 working days
GST invoice with every order
Standard pack: 3,000 per reel

LP3980-28B5F

₹88.90 for 10 + GST

Specifications

Output Voltage: 2.8V
Number of Outputs: 1
Operating Temperature: -40℃~+85℃@(Ta)
Supply Current (Iq): 20uA
Output Configuration: Positive
Operating Voltage: 5.5V
Output Current: 300mA
Features: Enable control;Over Current Protection;Thermal shutdown;Output discharge
Output Type: Fixed

Packaging & compliance

RoHS: RoHS
Lifecycle: Active
Packaging: Tape & Reel (TR)
Standard pack: 3,000 / Reel
Sold per: Piece
Minimum order: 10 (multiples of 10)
Unit weight: 0.045 g

Overview

The LP3980 is designed for portable RF and wireless applications where performance and space are at a premium. Its performance is optimized for battery-powered systems, delivering ultralow noise and low quiescent current. In dropout, the regulator's ground current increases only slightly, further extending battery life. The LP3980 also works with low-ESR ceramic capacitors, reducing board space required for power supply applications — a critical advantage in handheld wireless devices. In shutdown mode, current consumption is less than 0.01μA, with a fast startup time of less than 50μs. Additional features include ultralow dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio.

Applications

Portable media players/MP3 players
Cellular phones and smartphones
LCD monitors
Digital camera sensors
Wireless network adapters

Key features

1.6V to 5.5V input voltage range
Low dropout: 240mV at 300mA, 3.3V output
300mA output current
High PSRR: -76dB at 1KHz
Standby current <1μA in shutdown
Ultra-fast line/load transient response
Current limiting protection
Thermal shutdown protection
Available in SOT23-5, SOT23, TDFN-4 packages

Alternatives

Similar parts — check the datasheet before substituting.

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