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MP4473

High-Efficiency, Fast-Transient, 3.5A, 36V Synchronous, Step-Down Converter

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MP4473

MP4473

High-Efficiency, Fast-Transient, 3.5A, 36V Synchronous, Step-Down Converter

Datasheet

Parameters Description

Vin (min) (V)
4.5
Vin (max) (V)
36
Iout (max) (A)
3.5
Iq (typ) (mA)
0.5
Vfb (V)
0.815
fsw (max) (kHz)
1000
Control Mode
COT Control
Package (mm)
QFN-20 (3x4)
Grade
Catalog
Regulated Outputs
1
Vout (min) (V)
0.8
Vout (max) (V)
32.4
Isw Limit (typ) (A)
6.66
LDO Current (A)
0

The MP4473 is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter. It offers a compact solution to achieve a 3.5A, continuous-output current over a wide input-supply range with excellent load and line regulation. It provides fast, transient response and good stability for wide input-supply and load range. The MP4473 operates at high efficiency over a wide-output-current load range.
MP4473 has full protection features including, short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown (TSD).
The MP4473 requires minimal, readily available, standard, external components, and is available in a compact 3mmx4mm, 20-pin, QFN package.

Features & Benefits

Wide 4.5V-to-36V Operating Input Range
Guaranteed 3.5A, Continuous Output Current
Internal 40mΩ High-Side, 20mΩ Low-Side Power MOSFETs
Proprietary Switching-Loss-Reduction Technology
1% Reference Voltage
Programmable Soft-Start Time
Low Drop-Out Mode
200kHz-to-1MHz Switching Frequency
SCP, OCP, UVP, and Thermal Shutdown
Output Adjustable from 0.8V to 0.9×VIN
Available in a 3mmx4mm, 20-pin, QFN Package

Active Part Numbers:

MP4473GL-P MP4473GL-Z

Meaning of P & Z

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*Based on Nominal Values

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Standard Pricing

In stock

MP4473GL-Z MP4473GL-P

Package: QFN-20 (3x4)

5,000 per Reel

Buy Now Price $2.18 1K

Quantity Unit Price
1

$4.28
10

$3.83
100

$3.21
250

$3.06
500

$2.42
1K

$2.18

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In stock now: 1,600

Order now, up to 100 estimated to ship by 05 Nov, 2026

Order now, up to 1,500 estimated to ship by 14 Nov, 2026

Lead Time For Additional Quantities

Additional quantities estimated to ship by 14 Nov, 2026

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

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

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Technical Forum

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