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MP21600

0.6A, 5.5V, 2.2MHz, Synchronous Step-down Converter with 11µA I_Q in Ultra-small 1x1.5mm QFN Package

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MP21600

MP21600

0.6A, 5.5V, 2.2MHz, Synchronous Step-down Converter with 11µA I_Q in Ultra-small 1x1.5mm QFN Package

Datasheet

Description

The MP21600 is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs. The MP21600 achieves 0.6A of continuous output current from a 2.3V to 5.5V input voltage range with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.
The constant-on-time (COT) control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown.
The MP21600 is ideal for a wide range of applications, including high-performance DSPs, wireless power, portable and mobile devices, and other low-power systems.
The MP21600 requires a minimal number of readily available, standard, external components is available in an ultra-small QFN-6 (1.0mmx1.5mm) package.

Features & Benefits

Low IQ: 11μA
2.4MHz Switching Frequency
Enable (EN) Pin for Power Sequencing
Wide 2.3V to 5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 0.6A Output Current
120mΩ and 80mΩ Internal Power MOSFET Switches
Output Discharge
100% Duty Cycle
Short-Circuit Protection (SCP) with Hiccup Mode
Stable with Low ESR Output Ceramic Capacitors
Available in a QFN-6 (1.0mmx1.5mm) Package

Active Part Numbers:

MP21600GQD-Z

Meaning of P & Z

Recommended Inductors

Molded Inductor 1.8µH

Low-Profile Molded Inductor 1.8µH

Inductor Selector Tool

*Based on Nominal Values

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Standard Pricing

In stock

MP21600GQD-Z MP21600GQD-P

Package: QFN-6 (1x1.5)

5,000 per Reel

Buy Now Price $0.55 1K

Quantity Unit Price
1

$1.09
10

$0.98
100

$0.82
250

$0.78
500

$0.68
1K

$0.55

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In stock now: 9,245

Order now, up to 9,245 estimated to ship by 30 Jan, 2026

Lead Time For Additional Quantities

Additional quantities estimated to ship by 08 Feb, 2026

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

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

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Technical Forum

Questions answered by MPS engineers in 24h

MP5475 NC Pins - Question about grounding

Hello, Can NC pins 1, 9, 19, and 26 be connected to PGND on this chip? Please let me know. Regards, Tony 1203×248 59.1 KB

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企业微信截图_176905281768031256×742 80.2 KB 您好！我根据手册中如图设计了电路，理论上根据手册指出输出电压应该为1.8v，为何我测得的vout为1.15v左右

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