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ET3406 - High efficiency monolithic synchronous buck regulator

Description

The ET3406 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 drops to ≤1μA in shutdown.

Features

  • High Efficiency: Up to 96% 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 Shutdown Mode Draws ≤ 1μA Supply Current Current Mode Operation for Excellent Line and Load Transient Response Over temperature Protected Package Model VFB VOUT Printing marks ET3406­06 0.6V ­ 340606 ET3406R 0.6V ­ 3406R ET3406­15 ­ 1.5V 340615 ET3406­18 ­ 1.8V 340618 ET3406­18Y ­ 1.8V 340618.

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Datasheet preview – ET3406

Datasheet Details

Part number ET3406
Manufacturer Etek Microelectronics
File Size 218.46 KB
Description High efficiency monolithic synchronous buck regulator
Datasheet download datasheet ET3406 Datasheet
Additional preview pages of the ET3406 datasheet.

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Full PDF Text Transcription

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General Description The ET3406 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 drops to ≤1μA in shutdown. The 2.5V to 5.5V input voltage range makes the ET3406 ideally suited for single Li­Ion battery­powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.  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.
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