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PDF MT3420 Data sheet ( Hoja de datos )
| Número de pieza | MT3420 | |
| Descripción | 2A Synchronous Step-Down DC/DC Converter | |
| Fabricantes | ETC | |
| Logotipo |  |
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MT3420
1.4MHz, 2A Synchronous Step-Down DC/DC Converter
FEATURES
High Efficiency: Up to 95%
1.4MHz Constant Frequency Operation
2A Output Current
No Schottky Diode Required
2.4V to 5.5V Input Voltage Range
Output Voltage as Low as 0.6V
Low Quiescent Current: 40µA
Slope Compensated Current Mode Control for
Excellent Line and Load Transient Response
Inrush Current Limit and Soft Start
<1µA Shutdown Current
Available in DFN33-10 and WQFN-16L 3x3
package
APPLICATIONS
Cellular and Smart Phones
Wireless and DSL Modems
PDAs
Digital Still and Video Cameras
PC Cards
GENERAL DESCRIPTION
The MT3420 is a constant frequency, current mode
PWM step-down converter. The device integrates a
main switch and a synchronous rectifier for high
efficiency without an external Schottky diode. It is
ideal for powering portable equipment that runs from a
single cell Lithium-Ion (Li+) battery. The output voltage
can be regulated as low as 0.6V. The MT3420 can also
run at 100% duty cycle for low dropout operation,
extending battery life in portable system. This device
offers two operation modes, PWM control and PFM
Mode switching control, which allows a high efficiency
over the wider range of the load.
Typical Application
Figure 1. Basic Application Circuit
Package/Order Information
1
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet MT3420.PDF ] | |
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