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LTC3406B-1.2

Features: High Efficiency: Up to 96% 600mA Output Current at VIN = 3V 2.5V to 5.5V Input Voltage Range 1.5MHz Constant Frequency Operation No Schottky Diode Required Low Quiescent Current: 300µA Shutdown Mode Draws < 1µA Supply Current Current Mode Operation for Excellent Line and ...

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SeekIC No. : 004402212 Detail

LTC3406B-1.2: Features: High Efficiency: Up to 96% 600mA Output Current at VIN = 3V 2.5V to 5.5V Input Voltage Range 1.5MHz Constant Frequency Operation No Schottky Diode Required Low Quiescent Current: 300&micr...

LTC3406B-1.2 Data Sheet

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Part Number:
LTC3406B-1.2
Supply Ability:
5000

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

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Product Details

Description



Features:

High Efficiency: Up to 96%
600mA Output Current at VIN = 3V
2.5V to 5.5V Input Voltage Range
1.5MHz Constant Frequency Operation
No Schottky Diode Required
Low Quiescent Current: 300µA
Shutdown Mode Draws < 1µA Supply Current
Current Mode Operation for Excellent Line and Load Transient Response
Overtemperature Protected
Low Profile (1mm) ThinSOTTM Package


Application

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


Pinout

Connection Diagram


Specifications

Input Supply Voltage ...................................... 0.3V to 6V
RUN, VOUT Voltages........................................ 0.3V to VIN
SW Voltage (DC) .............................. 0.3V to (VIN + 0.3V)
P-Channel Switch Source Current (DC) .................... 800mA
N-Channel Switch Sink Current (DC) ........................ 800mA
Peak SW Sink and Source Current (VIN = 3V)............... 1.3A
Operating Temperature Range (Note 2) .. 40°C to 85°C
Junction Temperature (Notes 3, 5) .......................... 125°C
Storage Temperature Range ................ 65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................... 300°C


Description

The LTC®3406B-1.2 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current with no load is 300µA dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3406B-1.2 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications.

Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. The LTC3406B-1.2 is available in a low profile (1mm) ThinSOT package.




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