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PDF MT3410 Data sheet ( Hoja de datos )
| Número de pieza | MT3410 | |
| Descripción | 1.5A Synchronous Step-Down Converter | |
| Fabricantes | Aerosemi | |
| Logotipo |  |
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MT3410 Rev.V1.2
1.5MHz, 1.5A Synchronous Step-Down Converter
FEATURES
• High Efficiency: Up to 96%
• 1.5MHz Constant Frequency Operation
• 1500mA Output Current
• No Schottky Diode Required
• 2.3V to 6V Input Voltage Range
• Adjustable Output Voltage Range
Options from 0.6V to Vin
• 100% Duty Cycle Low Dropout
Operation
• Low Quiescent Current: 35µA
• Slope Compensated Current Mode
Control for Excellent Line and Load
Transient Response
• Short Circuit Protection
• Thermal Fault Protection
• Inrush Current Limit and Soft Start
• <1µA Shutdown Current
• Tiny SOT23-5 Package
APPLICATIONS
• Cellular and Smart Phones
• Wireless and DSL Modems
• PDAs
• Digital Still and Video Cameras
• MP3 Players
GENERAL DESCRIPTION
The MT3410 are high-efficiency, high
frequency synchronous step-down DC-DC
regulator ICs capable of delivering up to
1.5A output currents. The MT3410 can
operate over a wide input voltage range from
2.3V to 6V and integrates main switch and
synchronous switch with very low RDS(ON)
to minimize the conduction loss.
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 MT3410 can also run at
100% duty cycle for low dropout operation,
extending battery life in portable system.
This device offers two operation modes,
PWM mode and PFM Mode switching
control, which allows a high efficiency over
the wider range of the load.
The MT3410 is offered in a low profile (1mm)
5-pin, thin SOT package, and is available in
an adjustable version.
Typical Application
Figure 1. Typical Application Circuit
Aerosemi Technology Co.,LTD
1
1 page  
Functional Block Diagram
MT3410 Rev.V1.2
Figure 2. MT3410 Block Diagram
Functional Description
MT3410 is a synchronous buck regulator
IC that integrates the PWM/PFM control,
high-side and low-side MOSFETs on the
same die to minimize the switching
transition loss and conduction loss. With
ultra low RDS(ON) power switches and
proprietary PWM control, this regulator IC
can achieve the highest efficiency and the
highest switch frequency simultaneously
to minimize the external inductor and
capacitor size, and thus achieving the
minimum solution footprint.
The MT3410 requires only three external
power components (Cin, Cout and L). The
adjustable version can be programmed
with external feedback to any voltage,
ranging from 0.6V to the input voltage.
At dropout operation, the converter duty
cycle increases to 100% and the output
voltage tracks the input voltage minus the
Rdson drop of the high-side MOSFET.
The internal error amplifier and
compensation provides excellent transient
response, load, and line regulation. Soft
start function prevents input inrush current
and output overshoot during start up.
Aerosemi Technology Co.,LTD
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet MT3410.PDF ] | |
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