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RT9278

Features: · 95%Efficiency Synchronous Boost Converter· High Supply Capability· 2A Current Limit· Input Voltage Range : 1.5V to 5.5V· 600kHz Fixed Switching Rate· Adjustable Output Voltage Options Up to 5.5V· Output Voltage Keep Regulatedwhen Input Voltage Exceed Setting Output Voltage· 1mA Supply ...

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SeekIC No. : 004479951 Detail

RT9278: Features: · 95%Efficiency Synchronous Boost Converter· High Supply Capability· 2A Current Limit· Input Voltage Range : 1.5V to 5.5V· 600kHz Fixed Switching Rate· Adjustable Output Voltage Options Up...

RT9278 Data Sheet

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Part Number:
RT9278
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/26

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Product Details

Description



Features:

· 95%Efficiency Synchronous Boost Converter
· High Supply Capability
· 2A Current Limit
· Input Voltage Range : 1.5V to 5.5V
· 600kHz Fixed Switching Rate
· Adjustable Output Voltage Options Up to 5.5V
· Output Voltage Keep Regulatedwhen Input Voltage Exceed Setting Output Voltage
· 1mA Supply Current in Shutdown Mode
· External Compensation Network
· Build in Linear Controller for Linear Regulator
· Over Temperature Protection
· Small 10-Lead VDFN Package
· RoHS Compliant and 100%Lead (Pb)-Free




Application

·Digital Still Camera
·CameraWhite LEDFlash Light
·PDAs
·PortableDevice




Pinout

Connection Diagram




Specifications

l Supply Voltage, VDD ----------------------------------------------------------------------- 7V
l LXPin Voltage --------------------------------------------------------------------- -0.3V to 7V
l The Other pins--------------------------------------------------------------------- -0.3V to 7V
l Power Dissipation, PD@ TA = 25°C
VDFN-10L3x3 ----------------------------------------------------------------------------- 1.43W
l Package Thermal Resistance (Note 4)
VDFN-10L 3x3, qJA--------------------------------------------------------------------- 70°C/W
l Lead Temperature (Soldering, 10 sec.)--------------------------------------------- 260°C
l Operation TemperatureRange -------------------------------------------- -40°C to 85°C
l Storage Temperature Range -------------------------------------------- -65°C to 150°C
l ESD Susceptibility (Note 2)
HBM(Human Body Mode) -------------------------------------------------------------------- 2kV




Description

The RT9278 is a compact, high efficiency, synchronous step-up converter, it provides a power supply solution for products powered by either two-cell, three-cell Alkaline/ NiMH or one-cell Li-Ion/Li-polymer battery.

The RT9278 is boost converter with PWM control loop, provide up to 95% efficiency by using a synchronous rectifier. Themaximum peak current in the internal switch is limited to up to 2A.

It keeps the output voltage regulated when the input voltage exceeds the setting output voltage. The output voltage can be set by an external resister divider, or be fixed to reduce external components. It integrates a linear controller for linear regulator.

RT9278 is available in VDFN-10L3x3 package.






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