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KB3408

Features: High Efficiency: Up to 96% Very Low Quiescent Current: Only 20ADuring Operation 350mA Output Current 2.5V to 7.4V Input Voltage Range 1.5MHz Constant Frequency Operation No Schottky Diode Required Low Dropout Operation: 100% Duty Cycle 0.6V Reference Allows Low Output Voltages Shutdown ...

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SeekIC No. : 004384110 Detail

KB3408: Features: High Efficiency: Up to 96% Very Low Quiescent Current: Only 20ADuring Operation 350mA Output Current 2.5V to 7.4V Input Voltage Range 1.5MHz Constant Frequency Operation No Schottky Diode...

KB3408 Data Sheet

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Part Number:
KB3408
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: 2024/12/25

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Product Details

Description



Features:

High Efficiency: Up to 96%
Very Low Quiescent Current: Only 20A
  During Operation
350mA Output Current
2.5V to 7.4V Input Voltage Range
1.5MHz Constant Frequency Operation
   No Schottky Diode Required
Low Dropout Operation: 100% Duty Cycle
0.6V Reference Allows Low Output Voltages
Shutdown Mode Draws 􀀩1A Supply Current
Current Mode Operation for Excellent Line and
   Transient Response
Overtemperature Protected
Low Profile (1mm) SOT23-5 Package


Application

Cellular Telephones
Personal Information Appliances
Wireless and DSL Modems
Digital Still Cameras
MP3 Players
Portable Instruments


Specifications

Input Supply Voltage .............................. 0.3V to 7.5V
RUN, VFB Voltages ................................... 0.3V to VIN
SW Voltage ................................ 0.3V to (VIN + 0.3V)
P-Channel Switch Source Current (DC) ............. 400mA
N-Channel Switch Sink Current (DC) ................. 400mA
Peak SW Sink and Source Current .................... 350mA
Operating Temperature Range (Note 2)40°C to 85°C
Junction Temperature (Note 3) ......................... 125°C
Storage Temperature Range ............ 65°C to 150°C
Lead Temperature (Soldering, 10 sec).............. 300°C


Description

The KB3408 is a high efficiency monolithic synchronousbuck regulator using a constant frequency, current ode architecture. The device is available in an adjustable ersion and fixed output voltages of 1.8V and 3.3V. Supply urrent during operation is only 20A and drops to 􀀩1A n shutdown. The 2.5V to 7.4V input voltage range makes he KB3408 ideally suited for single Li-Ion battery-powered pplications. 100% duty cycle provides low dropout peration, extending battery life in portable systems. utomatic Burst Mode operation increases efficiency at ight loads, further extending battery life.

Switching frequency is internally set at 1.5MHz, allowing he use of small surface mount inductors and capacitors. he internal synchronous switch increases efficiency and liminates the need for an external Schottky diode. Low utput voltages are easily supported with the 0.6V feedback eference voltage. The KB3408 is available in a low rofile (1mm) SOT23-5 package.




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