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  4. 300mA, 2V to 5.5V, 500nA Iq, Step-Down Converter with LDO Regulator MP28310 (Monolithic Power Systems, Inc.)
300mA, 2V to 5.5V, 500nA Iq, Step-Down Converter with LDO Regulator MP28310-MP28310
300mA, 2V to 5.5V, 500nA Iq, Step-Down Converter with LDO Regulator MP28310-Monolithic Power Systems, Inc.

300mA, 2V to 5.5V, 500nA Iq, Step-Down Converter with LDO Regulator MP28310
Monolithic Power Systems, Inc.

Monolithic Power Systems, Inc.'s Response Status

Response Rate

100.0%

Response Time

15.6hours

Relatively Fast Response

About This Product

■Summary

The MP28310 is a monolithic power management unit that includes a 300mA, high efficiency, switching step-down converter and a 100mA low dropout (LDO) regulator. The ultra-low 500nA quiescent current (quiescent current) provides very high efficiency when the load current is in the μA range. The MP28310 has a low minimum input voltage of 2V, allowing the system to operate directly from the battery. Constant on-time (COT) control provides fast transient response, high light-load efficiency, and requires minimal capacitance. Good regulation is achieved by incorporating an error amplifier to correct the output voltage (VOUT). A 100mA LDO regulator provides easy system setup and clean VOUT. The control (CTRL) pin controls the on/off and VOUT selection functions. Fault protection features include undervoltage lockout (UVLO), overcurrent protection (OCP), and thermal shutdown. The MP28310 requires a minimal number of standard off-the-shelf external components and is available in a small CSP-12 (1.2mm x 1.6mm) package.

■Features and benefits

・300mA step-down converter ・Ultra-low quiescent current of 500nA (self-consumption current) ・Wide 2V to 5.5V operating input range ・7 selectable output voltages ・Output current up to 300mA ・1.5MHz switching frequency in continuous conduction mode (CCM) ・100% duty cycle in low dropout mode ・Built-in 0.25Ω and 0.25Ω power MOSFETs ・Cycle-by-cycle overcurrent protection (OCP) ・Short circuit protection (SCP) with hiccup mode ・100mA LDO ・Ultra low 300nA self-consumption current ・Operating input range from 2V to 5.5V ・3 selectable output voltages ・Overheat protection (OTP) ・Provided in CSP-12 (1.2mm x 1.6mm) package

■Available product numbers

・MP28310GC-P MP28310GC-Z ・Part numbers ending in P and Z are the same part. P and Z indicate reel size only

  • Product

    300mA, 2V to 5.5V, 500nA Iq, Step-Down Converter with LDO Regulator MP28310

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1 Models of 300mA, 2V to 5.5V, 500nA Iq, Step-Down Converter with LDO Regulator MP28310

Image Part Number Price (excluding tax) Internal LDO Iout (max) (A) Iq (typ) (mA) LDO Current (A) P.G. Regulated Outputs SS Step-Down DC/DC Converter Fsw (max) (kHz) Grade Package (mm) Input voltage (max) (V) Input voltage (min) (V)
300mA, 2V to 5.5V, 500nA Iq, Step-Down Converter with LDO Regulator MP28310-Part Number-MP28310

MP28310

Available upon quote

1

0.3

0.0005

0.1

Yes

2

Internal

1

1,500

Catalog

CSP-12 (1.2x1.6)

5.5

2

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About Company Handling This Product

Monolithic Power Systems, Inc.

Response Rate

100.0%

Response Time

15.6hrs

Company Overview

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

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