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LTC3406B-2

Linear
Part Number LTC3406B-2
Manufacturer Linear
Description 600mA Synchronous Step-Down Regulator
Published Mar 31, 2016
Detailed Description U U FEATURES ■ High Efficiency: Up to 96% ■ 600mA Output Current at VIN = 3V ■ 2.5V to 5.5V Input Voltage Range ■ 2.25M...
Datasheet PDF File LTC3406B-2 PDF File

LTC3406B-2
LTC3406B-2

Overview
U U FEATURES ■ High Efficiency: Up to 96% ■ 600mA Output Current at VIN = 3V ■ 2.
5V to 5.
5V Input Voltage Range ■ 2.
25MHz Constant Frequency Operation ■ No Schottky Diode Required ■ Low Dropout Operation: 100% Duty Cycle ■ Low Quiescent Current: 350µA ■ 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) SOT-23 Package U APPLICATIO S ■ Cellular Telephones ■ Personal Information Appliances ■ Wireless and DSL Modems ■ Digital Still Cameras ■ MP3 Players ■ Portable Instruments LTC3406B-2 2.
25MHz, 600mA Synchronous Step-Down Regulator in ThinSOTTM DESCRIPTIO The LTC®3406B-2 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture.
Supply current with no load is 350µA, dropping to <1µA in shutdown.
The 2.
5V to 5.
5V input voltage range makes the LTC3406B-2 ideally suited for single Li-Ion battery-powered applications.
100% duty cycle capability 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.
The switching frequency is internally set at 2.
25MHz, allowing the use of tiny 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 LTC3406B-2 is available in a low profile (1mm) SOT-23 package.
Refer to LTC3406 for applications that require Burst Mode® operation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
Protected by U.
S.
Patents, including 6580258, 5481178.
TYPICAL APPLICATIO VIN 2.
7V TO 5.
5V High Effici...


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