LV52207AXA

www.onsemi.com

2

Specifications

Absolute Maximum Ratings at Ta = 25

C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

l

VCC max

VCC

6

V

Maximum Pin voltage1

V1 max

SW

40

V

Maximum Pin voltage2

V2 max

Other pin

5.5

V

Allowable power

Pd max

Ta=25

C *1

0.95

W

Operating temperature

Topr

40 to +85

C

Storage temperature

Tstg

55 to +125

C

*1 Mounted on a specified board: 70mm×70mm×1.6mm (4 layer glass epoxy)

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

Caution 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

Supply voltage range1

VCC op

VCC

2.7 to 5.5

V

PWM frequency

Fpwm

PWM pin input signal

300 to 100k

Hz

MIN DUTY (PWM pin)

Dminpwm

PWM pin input signal

0.9%

Electrical Characteristics Analog block

at Ta=25°C, VCC=3.6V, RT resistor=63.4K

 unless otherwise specified

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

Standby current

dissipation

Icc1

EN=PWM=L

0

2

A

DC/DC current

dissipation1

Icc2

Device enable, switching 0.6 MHz

and no load

0.7

1.2

mA

FB Voltage

Vfb

LEDO1, 2=20mA

0.2

V

Output Current1

Io1

LEDO1 LEDO2

LEDISET=20mA

Duty=100%

19.6

20

20.4

mA

Output Current

Matching1

Iom1

LEDO1 LEDO2 LEDISET=20mA

Duty=100%

(IMAX – IAVG) / IAVG

0.3

2

%

LEDO1, 2 max current

Imax

LEDO1 LEDO2

40

mA

LEDO1, 2 leak current

Ilk

LEDO1 LEDO2

1

A

OVP Voltage

Vovp

SW_pin over voltage threshold

36

37.5

39

V

LEDO_OVP Voltage

VLovp

LEDO_pin over voltage threshold

LEDO DC rising

4.2

4.5

5.0

V

SWOUT ON resistance

Ron

IL=100mA

300

m



NMOS Switch Current

Limit

ILIM

1

1.5

A

OSC Frequency

Fosc

500

600

750

kHz

High level input voltage

VINH

EN PWM

1.2

VCC

V

Low level input voltage

VINL

EN PWM

0

0.4

V

Under Voltage Lockout

Vuvlo

VIN falling

2.2

V

EN pin output voltage

for Acknowledge

Vack

Rpullup=15k



0.4

V

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,

damage may occur and reliability may be affected.

Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended

Operating Ranges limits may affect device reliability.

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be

indicated by the Electrical Characteristics if operated under different conditions.