MP158 –SMALL, ENERGY-EFFICIENT, OFF-LINE REGULATOR

MP158 Rev. 1.0

www.MonolithicPower.com

4

10/17/2014

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

© 2014 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

under 25°C, unless otherwise specified.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Start-up Current Source and Internal MOSFET (Drain Pin)

Internal regulator supply current

2.2

3.5

4.8

mA

Drain pin leakage current

10

15

μA

Breakdown Voltage

500

V

ON resistance

20

Ω

Supply Voltage Management (VCC Pin)

VCC level (increasing) where the

internal regulator stops

5.3

5.6

5.95

V

VCC level (decreasing) where the

internal regulator turns on

5.1

5.3

5.7

V

VCC regulator on and off hysteresis

110

250

mV

VCC level (decreasing) where the

IC stops

3

3.4

3.7

V

VCC level (decreasing) where the

protection phase ends

2

2.4

2.8

V

Internal IC consumption

D=47%

600

μA

Internal IC consumption (No

switching)

VCC=5.5V

165

uA

Internal IC consumption, latch-off

phase

VCC=5.3V

16

μA

Internal Current Sense

Peak current limit

83

101

125

mA

Leading-edge blanking

350

ns

SCP threshold

150

220

290

mA

Leading-edge blanking for SCP

(1)

180

ns

Feedback Input (FB Pin)

Minimum off time

7.4

9.4

11.7

μs

Maximum on time

7.9

10.4

13.1

μs

Primary MOSFET feedback turn-on

threshold

2.45

2.55

2.65

V

OLP feedback trigger threshold

1.6

1.7

1.85

V

OLP delay time

120

ms

Open-loop detection

60

mV

Thermal Shutdown

Thermal shutdown threshold

(1)

150

°C

Thermal shutdown recovery

hysteresis

(1)

30

°C

Notes:

1) This parameter is guaranteed by design.