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MP3120

1.2A, 1.1MHz Synchronous Boost Converter with Output Disconnect

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MP3120

1.2A, 1.1MHz Synchronous Boost Converter with Output Disconnect

Datasheet

Description

The MP3120 is a high efficiency synchronous, current mode step-up converter. The device can boost a single cell or two cells AA battery up to 5V. The MP3120 can start up from an input voltage as low as 0.8V and provide in-rush current limiting as well as output short circuit protection. The integrated P-Channel synchronous rectified switch provides improved efficiency and eliminates the need of an external schottky diode. The P-MOS will disconnect the output from the input when EN is low. This output disconnect feature allows the output to be completely discharged, thus allowing the part to draw less than 1uA off current in shutdown mode. The 1.1MHz switching frequency allows for smaller external components; the internal compensation and soft start minimize the external component count, all helps to produce a compact solution for a wide range of load current. The MP3120 features an integrated power MOSFET that supports up to 5V output and a typical 1.2A switch current. The device also can maintain the output voltage regulated even when the input voltage is above the output voltage.

Features & Benefits

Up to 96% Efficiency
True Output Disconnect from Input
Inrush Current Limiting and Internal Soft-Start
0.8V Low Voltage Start-Up
Internal Synchronous Rectifier
Current Mode Control with Internal Compensation
Short-Circuit Protection
1.1MHz Fixed Frequency Switching
0.8V to 5V Input Range
2.5V to 5V Output Range
Tiny External Components
Small 6-Lead TSOT23 Package

Active Part Numbers:

MP3120DJ-LF-P MP3120DJ-LF-Z

Meaning of P & Z

Related Products

EV3120-J-00A 1.2A, 1.1MHz Synchronous Boost Converter Evaluation Board

The EV3120-J-00A is a Boost converter evaluation board for the MP3120DJ, a synchronous, 1.1MHz fixed frequency, current mode step-up converter with output to input disconnect.

It can startup from an input voltage as low as 0.85V and provides inrush current limiting as well as output short circuit protection.

The output voltage also can be regulated when VIN>VOUT, and the P-channel MOS is no longer act as a low impedance switch.

The EV3120-J-00A regulates the output voltage up to 3.3V from single cell AA battery without the uses of an external Schottky diode.

The MP3120DJ is offered in a TSOT23-6 package.

$25.00
+ tax

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In stock

MP3120DJ-LF-Z MP3120DJ-LF-P

Package: TSOT23-6

3,000 per Reel

Buy Now Price $0.91 1K

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1

$1.91
10

$1.62
100

$1.34
250

$1.29
500

$1.13
1K

$0.91

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In stock now: 12,668

Order now, up to 0 estimated to ship by 25 Apr, 2025

Order now, up to 12,668 estimated to ship by 04 May, 2025

Lead Time For Additional Quantities

Additional quantities estimated to ship by 10 Aug, 2025

Arrives 3-4 business days. Shipping only $5 per order.

2500 Max per Company.
Limited Inventory to support product development.

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