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  4. Integrated 240mA current-limited switching regulator, linear regulator, and relay driver MP161B (Monolithic Power Systems, Inc.)
Integrated 240mA current-limited switching regulator, linear regulator, and relay driver MP161B-MP161B
Integrated 240mA current-limited switching regulator, linear regulator, and relay driver MP161B-Monolithic Power Systems, Inc.

Integrated 240mA current-limited switching regulator, linear regulator, and relay driver MP161B
Monolithic Power Systems, Inc.

About This Product

■Summary

The MP161 integrates a 700V switching regulator, a low-dropout linear regulator, and a 2-channel relay driver. MP161 also has a special standby mode to minimize standby power. The MP161 is designed for home automation, industrial automation, and other applications employing relays and MCUs. The 700V switching regulator employs constant voltage (CV) regulation with internal loop compensation. Efficiency at light loads is optimized by properly adjusting the switching frequency and peak current. It also includes various protection features to ensure reliable operation. An integrated low-dropout linear regulator can operate from inputs up to 30V. Output voltage is fixed at 5V or 3.3V. MP161 also features overtemperature protection (OTP). The built-in relay driver is intended to drive up to two relays using the switching regulator output. A freewheeling diode is integrated to reduce external components. When standby mode is enabled, the switching regulator's output voltage is reduced to reduce power consumption. MP161 is offered in SOIC-16 package.

■Features and benefits

・700V switching regulator ・Integrated 700V MOSFET and current source ・Constant voltage (CV) regulation with internal loop compensation ・Light load efficiency optimized by frequency modulation ・Standby mode ・Audible noise resistant operation with peak current modulation ・Adjustable or fixed 12V output ・Low operating current ・Overtemperature protection (OTP), short circuit protection (SCP), overload protection (OLP), and overvoltage protection (OVP) ・Low dropout linear regulator ・Input voltage up to 30V ・Fixed output, 3.3V and 5V options available ・Overheat protection (OTP) ・Relay driver ・2Ω on-state resistance ・Rail voltage up to 30V ・Freewheel diode integration ・Nominal off driver

■Available product numbers

・MP161BGS-33-Z MP161BGS-5-Z MP161BGS-Z ・Part numbers ending in P and Z are the same part. P and Z indicate reel size only

  • Product

    Integrated 240mA current-limited switching regulator, linear regulator, and relay driver MP161B

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1 Models of Integrated 240mA current-limited switching regulator, linear regulator, and relay driver MP161B

Image Part Number Price (excluding tax) Control Method Ileak (µA) Iregulator (mA) Isw Limit (mA) Rds (on) (Ω) Type Vac (max) (V) Vac (min) (V) Vbr (V) Vfb (V) Package (mm)
Integrated 240mA current-limited switching regulator, linear regulator, and relay driver MP161B-Part Number-MP161B

MP161B

Available upon quote

On-Off

10

4.1

420

14

Buck Regulator

265

30

700

2.5

SOIC-16

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About Company Handling This Product

Monolithic Power Systems, Inc.

Company Overview

Monolithic Power Systems (MPS), founded in 1997 and headquartered in San Jose, California, is a manufacturer o...

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IC Linear Regulators
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