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LOWPOWER LP3321B6F product image
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LOWPOWER LP3321B6FRoHS

Manufacturer
LOWPOWERAsian Brands
MPN
LP3321B6F
LCSC Part #
C517219
Packaging
SOT-23-6
Customer #
Key Attributes
High Performance, Constant Current Switching Regulator For White LED In Series
Datasheetpdf iconLOWPOWER LP3321B6F
In-Stock: 23,065
23,065 In stock, ships now
Minimum: 5Multiple: 5Sales Unit: Piece
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.0683$ 0.34
50+$ 0.06$ 3.00
150+$ 0.0559$ 8.39
500+$ 0.0528$ 26.40
3,000+$ 0.0504$ 151.20
6,000+$ 0.0491$ 294.60
Standard Packaging3000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerLOWPOWER
PackagingSOT-23-6
Output Voltage-
FeaturesOver Voltage Protection;Built-in soft-start;Over-Temperature Protection (OTP)
Frequency - Switching1MHz
Switch Tube (Built-In/External)Built-in
Voltage - Input(AC)-
Operating temperature-40℃~+85℃
Number of Channels1
TopologyBoost
Type-
Output Current-
Constant Current Accuracy-
Voltage - Input(DC)2.5V~5.5V
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Introduction

AI Translation

The LP3321 is a 1.0MHz PWM boost switching regulator designed for constant-current white LED driver applications. The LP3321 can drive a string of up to 11 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The LP3321 implements a constant frequency 1.0MHz PWM control scheme. The high frequency PWM operation also saves board space by reducing external component sizes. To improve efficiency, the feedback voltage is set to 200mV, which reduces the power dissipation in the current setting resistor. Highly integration and internal compensation network minimizes as 5 external component counts. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency.

Features

AI Translation
  • Up to 94% efficiency
  • Shut-down current: <1uA
  • Output voltage Up to 37V
  • Internal Compensation, Soft-start
  • Support down to 1% Dimming Duty Cycle
  • 1.0MHz fixed frequency switching
  • High switch on current: 1.5A
  • Available in SOT23-6&TDFN-6(2mm×2mm) Package

Applications

AI Translation
  • WLED Backlight driver
  • OLED Backlight driver
  • PDA
  • MID/PTV