LV5980MC

No.A2104-2/16

Specifications

°C

Parameter

Symbol

Conditions

Ratings

Unit

Input voltage

VIN max

25

V

VIN-SW

30

V

VIN-PDR

6V

REF

6V

SS/HICCUP

REF

V

FB

REF

V

Allowable pin voltage

COMP

REF

V

Allowable power dissipation

Pd max

Specified substrate *1

1.35

W

Operating temperature

Topr

-40 to +85

°C

Storage temperature

Tstg

-55 to +150

°C

*1 Specified substrate : 50.0mm

× 50.0mm × 1.6mm, fiberglass epoxy printed circuit board, 4 layers

Note 1 : Absolute maximum ratings represent the values which cannot be exceeded for any length of time.

Note 2 : Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,

high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.

Recommended Operating Conditions

at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Input voltage range

VIN

4.5 to 23

V

Electrical Characteristics

at Ta = 25°C, VIN = 15V

Ratings

Parameter

Symbol

Conditions

min

typ

max

Unit

Reference voltage

Internal reference voltage

VREF

1.210

1.235

1.260

V

Pch drive voltage

VPDR

IOUT = 0 to -5mA

VIN-5.5

VIN-5.0

VIN-4.5

V

Saw wave oscillator

Oscillatory frequency

FOSC

310

370

430

kHz

Soft start circuit

Soft start

• source current

ISS_SC

1.2

1.8

2.4

μA

Soft start

• sink current

ISS_SK

VIN = 3V, SS = 0.4V

300

μA

UVLO circuit

UVLO release voltage

VUVLON

FB = COMP

3.3

3.7

4.1

V

UVLO lock voltage

VUVLOF

FB = COMP

3.02

3.42

3.82

V

Error amplifier

Input bias current

IEA_IN

-100

-10

nA

Error amplifier gain

GEA

100

220

380

μA/V

Output sink current

IEA_OSK

FB = 1.75V

-30

-17

-8

μA

Output source current

IEA_OSC

FB = 0.75V

8

17

30

μA

Over current limit circuit

Current limit peak

ICL

3.5

4.7

6.2

A

HICCUP timer start-up cycle

NCYC

15

cycle

HICCUP comparator threshold voltage

VtHIC

0.15

V

HICCUP timer discharge current

IHIC

0.25

μA

PWM comparator

Maximum on-duty

DMAX

94

%

Output

Output on resistance

RON

IO = 0.5A

100

m

Ω

The entire device

Light load mode consumption current

ISLEEP

No switching

63

83

μA

Thermal shutdown

TSD

Design guarantee *2

170

°C

*2 : Design guarantee: Signifies target value in design. These parameters are not tested in an independent IC.

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating

Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.