APW7077

Features: · Low Start-up Voltage 0.9V· Fixed 300kHZ Operating Frequency· Built-In Internal Soft Start Circuit· Low Operating Current· 3.3V and 5V (±2.5%) Fixed (APW7077) or Adjustable Output Voltage (APW7077A)· High Efficiency Up to 88% at 400mA Output Current· High Output Current Up to 1A· Compac...

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SeekIC No. : 004287667 Detail

APW7077: Features: · Low Start-up Voltage 0.9V· Fixed 300kHZ Operating Frequency· Built-In Internal Soft Start Circuit· Low Operating Current· 3.3V and 5V (±2.5%) Fixed (APW7077) or Adjustable Output Voltage...

floor Price/Ceiling Price

Part Number:
APW7077
Supply Ability:
5000

Price Break

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

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268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/11/12

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Product Details

Description



Features:

· Low Start-up Voltage 0.9V
· Fixed 300kHZ Operating Frequency
· Built-In Internal Soft Start Circuit
· Low Operating Current
· 3.3V and 5V (±2.5%) Fixed (APW7077) or Adjustable Output Voltage (APW7077A)
· High Efficiency Up to 88% at 400mA Output Current
· High Output Current Up to 1A
· Compact Package: SOT-23-5
· Lead FreeAvailable (RoHSCompliant)





Application

· Cellular and Portable Phones
· PortableAudio
· Camcorders andDigital Still Camera
· Hand-held Instrument
· PDAs





Pinout

  Connection Diagram




Specifications

Symbol
Parameter
Value
Unit
VDD
Supply voltage
-0.3 to 7
V
VIO
Input / output pins (CE, FB, EXT)
-0.3 to 7
V
TA
Operating Ambient Temperature Range
-40 to 85
°C
TJ
Junction Temperature Range
-40 to 150
°C
TSTG
Storage Temperature Range
-65 to +150
°C
TS
Soldering Temperature
300, 10 seconds
°C
VESD
Minimum ESD Rating
±2
KV





Description

The APW7077/A series are multi- function PWM step-upDC-DCconverterwithanadaptivevoltagemode controller and higher efficiency application from one to four cells battery packs. The APW7077/A series are set PWM operating mode, voltage-mode to follow portable application. And built-in driver pin, EXT pin,for connecting to an external transistor or MOSFET during light load, the device will automatically skip switching cycles to maintain high efficiency. The APW7077/A series consists of PWM controller,reference voltage, phase compensation, oscillator,soft-start, driver block. It will provide to operate suitable voltage without external compensation circuit. The APW7077/A series have fixed voltage and adjustable voltage version from a wide input voltage ranges 0.7V to 5.5V for step-up DC-DC converter. The start-up is guaranteed at 1V and the device is operating down to 0.7V. And providing up to 300mA loading current.Besides, low quiescent current (switch-off) is guaranteed.






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