MP2117 2.5-6V, 2.2A, 1.25MHz Synchronous Step-Down Switcher END OF LIFE SOIC

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MP2117 2.5-6V, 2.2A, 1.25MHz Synchronous Step-Down Switcher END OF LIFE SOIC

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pMPS MP2117 — Synchronous Step-Down Switcher END OF LIFE, 2.5-6V input, 2.2 A output, SOIC./p

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MPS Step-Down SOIC Power Management DC/DC Switching Regulators

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MP2117 2.5-6V, 2.2A, 1.25MHz Synchronous Step-Down Switcher END OF LIFE SOIC

The MPS MP2117 is a Synchronous Step-Down Switcher END OF LIFE. It operates from a 2.5 V to 6 V input, is rated for 2.2 A and switches at 1.25 MHz. It is supplied in a SOIC package.

The MP2117 is an internally compensated 2.2A synchronous step-down switcher.

Key Specifications

Part Number	MP2117
Function	Synchronous Step-Down Switcher END OF LIFE
Input Voltage	2.5 V to 6 V
Current Rating	2.2 A
Switching Frequency	1.25 MHz
Peak Efficiency	90%
Package	SOIC
Lifecycle	EOL
Ordering Codes	MP2117

Features

2.2A Output Current
2.5V to 6V Input Range VIN
Internal Power MOSFET Switches
Low Dropout Operation: 100% Duty Cycle
Up to 90% Efficiency
Stable with Ceramic Output Capacitors
1μA Shutdown Current
1.25MHz Switching Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection

Typical Application Circuit

Applications

DVD+/-RW Drives
Portable Instruments "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.

Design Notes

Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
Route the feedback divider from the output capacitor terminals, away from the switch node.