MCP1603T-ADJI/OS Power Management ICs - PMIC by Microchip Technology

2MHz 500mA Synchronous PFM/PWM Buck Regulator

Status: Active
Series: MCP1603
RoHS: Compliant
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The MCP1603 is a high efficiency fully integrated 500 mA 2.0 MHz synchronous buck regulator ideally suited for Li-Ion/NiMH Battery powered application powered. At heavy loads, the MCP1603 operates in the 2.0 MHz fixed frequency PWM mode which provides a low noise, low output ripple, small-size solution. When the load is reduced to light levels, the MCP1603 automatically changes operation to a PFM mode to minimize quiescent current draw from the battery. No intervention is necessary for a smooth transition from one mode to another. These two modes of operation allow the MCP1603 to achieve the highest efficiency over the entire operating current range.

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Prices starting from US$0.95

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Features

Small packages: TSOT-23 and 2x3 DFN
PWM/PFM automatic transistion
Over current and temperature protection
Automatic PWM/PFM mode transition
Eff. 90%, Shutdown Current 100 nA
Small passives 4.5 microhenry, 4.5 microfarad

Specifications

Regulator Type Step Down (Buck)
Switching Frequency (kHz) 2000
Input Voltage Range Min 2.7
Input Voltage Range Max 5.5
Output Current 500
Temp Range Min -40
Temp Range Max 85
Vout Min (V) 0.8
Vout Max (V) 4.5
Quiescent Current (mA) typ 0.045
Light Load Efficiency Mode Yes
Switch current (A) typ 0
Automotive Rated No
SHUTDOWN Current (µA) (Typ) 0.1
# of Outputs 1
Vfb (V) 0.8
Synchronous Rectifier Yes
Duty Cycle Max (%) 100
Pins | Packaging 5 | TSOT
Temp Range -40C to +85C
Packing Media Tape and reel (3000)

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.0128
Shipping Weight (kg) 0.033333
Lead Count 5
Package Type TSOT
Soldering Composition Matte Tin

Alternative Descriptions

2.0 MHZ 500MA SYNCHRONOUS BUCK REGULATOR | Microchip Technology
Synchronous Buck Regulator, Tsot-5, Full Reel | Newark Electronics
MCP1603 Series 2.8 MHz 500 mA SMT Synchronous Buck Regulator - TSOT-23-5 | Future Electronics
Conv DC-DC Single Step Down 2.7V to 5.5V 5-Pin TSOT T/R | Avnet America
Pwr Sply Func, Regulator, Buck, OS, IS 45uA, VO 4.5V, Regline 0.3%/V, Regload 0.35% | Microchip Technology Inc. MCP1603T-ADJI/OS | RS Americas


Frequently Asked Questions

Where can I find additional details, specifications and documents for a MCP1603T-ADJI/OS?

Additional datasheets, footprints and schematics for MCP1603T-ADJI/OS are listed on our Part Details page. You can also find images and similar parts to MCP1603T-ADJI/OS on this page.

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What category does MCP1603T-ADJI/OS fall under?

The MCP1603T-ADJI/OS is listed under Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators > DC / DC Adjustable Switching Regulators.

Can I view similar or alternative parts?

You can view similar parts to MCP1603T-ADJI/OS when available in the DC / DC Adjustable Switching Regulators range under the specifications section at the bottom of the details page.

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Is the MCP1603T-ADJI/OS RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for MCP1603T-ADJI/OS have stock available?

Authorised distributors including Microchip Technology, Newark Electronics, Future Electronics, Avnet America and RS Americas have stock available or on a lead time for MCP1603T-ADJI/OS.

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