4/20

Axelite Confidential Materials, do not copy or distribute without written consent.

Rev.1.5 Nov.06, 2019

AX5510



ELECTRICAL CHARACTERISTICS

(VIN=5V, VOUT=12V, VEN=VIN, TA=25°C, unless otherwise noted)

Characteristics

Symbol

Conditions

Min

Typ Max Units

Input Voltage range

VCC

2.6

-

5.5

V

Under Voltage Lockout

UVLO Rising

-

2.35 2.6

V

UVLO Hysteresis

-

-150

-

mV

Step-Up Voltage Adjust Range

VOUT

VCC+0.5

-

27

V

Operating quiescent current

ICCQ

IOUT= 0mA, VFB=1.5V

-

150 250

μA

Shutdown current

ISD

VEN=0V

-

0.1

1

μA

Feedback Voltage

VFB

1.219 1.238 1.257 V

FB Input Leakage Current

IFB-LKG VFB = 1.5V

-100

0.01 +100 nA

Line Regulation

VIN=2.6 to 5.5V

IOUT=20mA

-

0.2

-

%

Load Regulation

VIN=5V

IOUT= 1mA to 0.7A

-

0.3

-

%

Oscillator frequency

FOSC

FREQ=High

900

1200 1500

KHz

FREQ=Low

500

680 850

FREQ high-level input voltage

VFQ-IH

2

-

-

V

FREQ low-level input voltage

VFQ-IL

-

-

0.5

FREQ input leakage current

IFQ-LKG FREQ=GND

-

-

0.1

uA

Soft Start Current

ISS

4

7

13

μA

N-channel MOSFET current limit

ILIM

Duty=40%

3

3.8

4.5

A

MOSFET on-resistance

(Note1)

RDS(on)

VIN=3V, ISW=2A

-

200 280

mΩ

VIN=5V, ISW=2A

-

160 220

EN high-level input voltage

VIH

1.0

-

-

V

EN low-level input voltage

VIL

-

-

0.4

V

EN Hysteresis

hys

-

200

-

mV

EN input leakage current

IEN-LKG VEN=GND or VIN

-

0.01 0.1

μA

Maximum Duty Cycle

Duty VFB=0V

85

90

-

%

LX Leakage Current

ILXL

VLX = 25V, VFB=1.5V

-

-

10

µA

Thermal Shutdown

TDS

-

150

-

°C

Thermal Shutdown Hysteresis

TSH

-

35

-

Note：Guaranteed by design.