MP2225 datasheet(4/20 Pages) MPS

部品番号	MP2225

部品情報	High-Efficiency, 5A, 18V, 500kHz Synchronous, Step-Down Converter

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メーカー	MPS [Monolithic Power Systems]

ホームページ	http://www.monolithicpower.com

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MP2225 –18V/5A SYNCHRONOUS STEP-DOWN CONVERTER

MP2225 Rev. 1.01

www.MonolithicPower.com

4

4/13/2016

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

ELECTRICAL CHARACTERISTICS

VIN = 12V, TJ = -40°C to +125°C

(6), Typical value is tested at TJ = +25°C, unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Supply Current (Shutdown)

IIN

VEN = 0V,TJ =25°C

1

μA

Supply Current (Shutdown)

IIN

VEN = 0V

3

μA

Supply Current (Quiescent)

IQ

VEN = 2V, VFB = 0.7V

320

400

μA

HS Switch-On Resistance

HSRDS-ON VBST-SW=5V

47

mΩ

LS Switch-On Resistance

LSRDS-ON

VCC =5V

18

mΩ

Switch Leakage

SWLKG

VEN = 0V, VSW =12V, TJ

=25°C

1

μA

Current Limit

(7)

ILIMIT

Under 40% Duty Cycle

6.5

9

A

Oscillator Frequency

FSW

VFB=0.48V

380

500

580

kHz

Fold-Back Frequency

FFB

VFB<300mV

0.56

FSW

Maximum Duty Cycle

DMAX

VFB=500mV

90

95

%

Minimum On Time

(8)

TON_MIN

50

ns

Sync Frequency Range

FSYNC

0.2

2

MHz

Feedback Voltage

VFB

TJ =25°C

594

600

606

mV

Feedback Voltage

VFB

591

600

609

mV

Feedback Current

IFB

VFB=620mV

10

50

nA

EN Rising Threshold

VEN_RISING

1.15

1.4

1.65

V

EN Hysteresis

VEN_HYS

160

mV

VEN=2V

1.85

μA

EN Input Current

IEN

VEN=0

0

μA

EN Turn-Off Delay

ENtd-off

5

10

μs

VIN Under-Voltage Lockout

Threshold-Rising

INUVVth

3.85

4.1

4.35

V

VIN Under-Voltage Lockout

Threshold-Hysteresis

INUVHYS

735

mV

Soft-Start Time

TSS

10% to 90% Output Voltage

2.4

ms

Thermal Shutdown

(8)

TSD

150

°C

Thermal Hysteresis

(8)

TSD_HYS

20

°C

Notes:

6) Not tested in production. Guaranteed by over-temperature correlation.

7) Guaranteed by engineering sample characterization.

8) Guaranteed by design.

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