MP2117

– 1.25MHZ, 2.2A SYNCHRONROUS STEP-DOWN SWITCHER

END OF LIFE, REFER TO MP1605

MP2117 Rev. 0.92

www.MonolithicPower.com

3

6/20/2022

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2023 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS (5)

VIN = VEN = 3.6V, TA = +25C, unless otherwise noted.

Parameters

Condition

Min

Typ

Max

Units

No Load Supply Current

VIN = 3.6V, VEN=3.6V

VFB = 0.65V

350

500

μA

Shutdown Current

VEN = 0V, VIN = 6V

0.01

1

μA

Thermal Shutdown Trip Threshold

Hysteresis = 20°C

150

°C

PWROK Upper Trip Threshold

FB with respect to the Nominal Value

10

%

PWROK Lower Trip Threshold

FB with respect to the Nominal Value

–10

%

PWROK Output Lower Voltage

ISINK = 5mA

0.3

V

PWROK Deglitch Timer

50

μs

EN Trip Threshold

–40°C ≤ TA ≤ +85°C

0.3

1.5

V

EN Pull Down Resistor

1

M

Ω

IN Under Voltage Lockout Threshold

Rising Edge, Hysteresis=0.3V

1.8

2.2

V

Regulated FB Voltage

TA = +25°C

0.584

0.596

0.608

V

–40°C ≤ TA ≤ +85°C

0.578

0.596

0.614

FB Input Bias Current

VFB = 0.62V

–50

+50

nA

SW PFET On Resistance

ISW = 100mA

0.20

Ω

SW NFET On Resistance

ISW =

–100mA

0.15

Ω

SW Leakage Current

VEN = 0V, VIN = 6V

VSW = 0V or 6V

–5

+5

μA

SW PFET Peak Current Limit

Duty Cycle = 100%,

Current Pulse Width < 1ms

2.5

3.3

4.5

A

Oscillator Frequency

1.00

1.25

1.50

MHz

Notes:

5) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.

PIN FUNCTIONS

QFN

Pin #

SOIC

Pin #

Name

Description

1

1

FB

Feedback Input for the switcher output VOUT.

2

8

EN

Enable Input for the switcher.

3

2

IN

Input Supply Pin.

4, 5

3

SW

Switcher switch node.

6

4, 5

PGND

Low Side Synchronous Rectifier Switch Power Ground.

7

6

GND

Chip Analog Ground. Connect the Exposed Pad to GND.

9

7

PWROK

Power On Reset Open Drain Output. HIGH output indicates that the

output is within

10% of the regulation value. LOW output indicates that

the output is out of

10% window. PWROK is pulled down in shutdown.

The PWROK window comparators have 50us deglitch timer to avoid

false trigger during load transient.

8, 10

-

N/C

No Connection.