MPM3620 – SYNCHRONOUS STEP-DOWN MODULE WITH INTEGRATED INDUCTOR

MPM3620 Rev. 1.1

www.MonolithicPower.com

4

2/12/2015

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

© 2015 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Units

Supply Current (Shutdown)

1

μA

Supply Current (Quiescent)

0.2

mA

0.7

HS Switch-On Resistance

90

mΩ

LS Switch-On Resistance

40

mΩ

Integrated Inductor Inductance

(8)

L

1

µH

Inductor DC Resistance

25

45

65

mΩ

Switch Leakage

1

μA

Current Limit

(8)

Under 40% Duty Cycle

3.8

4.8

A

Oscillator Frequency

1600

2000

2400

kHz

2000

2500

kHz

Fold-Back Frequency

0.3

Maximum Duty Cycle

77

%

Minimum On Time

(8)

35

ns

Feedback Voltage

786

798

810

mV

782

798

814

mV

Feedback Current

10

50

nA

AAM Source Current

5.6

6.2

6.8

μA

4.3

6.2

7.9

μA

EN Rising Threshold

1.15

1.4

1.65

V

EN Falling Threshold

1.05

1.25

1.45

V

EN Input Current

2

μA

VIN Under-Voltage Lockout

Threshold—Rising

3.65

3.9

4.15

V

VIN Under-Voltage Lockout

Threshold—Hysteresis

650

mV

VCC Regulator

5

V

VCC Load Regulation

1.5

%

Soft-Start Time

1.5

ms

Thermal Shutdown

(8)

150

°C

Thermal Hysteresis

(8)

20

°C

Notes:

7) Not tested in production; guaranteed by over-temperature correlation.

8) Guaranteed by characterization test.