Anterwell Technology Ltd.
Large Original stock of IC Electronics Components, Transistors, Diodes etc.
High Quality, Reasonable Price, Fast Delivery.
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Input Supply Voltage: | –0.3V To 6V | RUN, VFB Voltages: | –0.3V To VIN |
---|---|---|---|
SW Voltage: | –0.3V To (VIN + 0.3V) | Peak SW Sink And Source Current: | 1.3A |
Junction Temperature: | 125°C | Storage Temperature: | – 65°C To 150°C |
High Light: | electronic integrated circuit,linear integrated circuits |
LTC3406 LTC3406-1.5/LTC3406-1.8
1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT
FEATURES
■ High Efficiency: Up to 96%
■ Very Low Quiescent Current: Only 20µA During Operation
■ 600mA Output Current
■ 2.5V to 5.5V 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 ≤1µA Supply Current
■ Current Mode Operation for Excellent Line and Load Transient Response
■ Overtemperature Protected
■ Low Profile (1mm) ThinSOTTM Package
APPLICATIONS
■ Cellular Telephones
■ Personal Information Appliances
■ Wireless and DSL Modems
■ Digital Still Cameras
■ MP3 Players
■ Portable Instruments
DESCRIPTION
The LTC® 3406 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version and fixed output voltages of 1.5V and 1.8V. Supply current during operation is only 20µA and drops to ≤1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3406 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Automatic Burst Mode® operation increases efficiency at light loads, further extending battery life.
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. Low output voltages are easily supported with the 0.6V feedback reference voltage. The LTC3406 is available in a low profile (1mm) ThinSOT package.
ABSOLUTE AXIMUM RATINGS
Input Supply Voltage .................................. –0.3V to 6V
RUN, VFB Voltages ..................................... –0.3V to VIN
SW Voltage .................................. –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 ........................ 1.3A
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
TYPICAL APPLICATION
Stock Offer (Hot Sell)
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