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

Rev.2.1 Nov.12, 2019

AX6617



ELECTRICAL CHARACTERISTICS (CONTINUOUS)

Characteristics

Symbol

Conditions

Min Typ Max Units

POK Threshold Voltage for

Power OK

VPOK VFB Rising

88% 92% 96% VFB

POK Threshold Voltage for

Power Not OK

VPNOK VFB Falling

-

81% -

VFB

POK Low Voltage

POK sinks 5mA

-

0.25 0.4

V

POK Delay Time

TDELAY

0.8

2

4

mS

Thermal shutdown Temp

TSD

-

160

-

°C

Thermal Shutdown

Hysteresis

TSH

-

40

-

°C



APPLICATION CIRCUIT

1. Using an Aluminum Electrolytic Output Capacitor

C1

1uF

R1

1K

VOUT=1.2V/2A

VIN=1.8V

R3

VCNTL=5V

C4

220uF

C5

0.1uF

U1

AX6617

4

7

6

8

5

2

1

3

VCNTL

FB

VOUT

GND

NC

EN

POK

VIN

C2

100uF

C3

0.1uF

C6

12~48nF

R2

2K

OFF

ON

(Option)

10K

2. Using an MLCC Output Capacitor

VIN=1.8V

R3

10K

VOUT=1.2V/2A

VFB = 0.8V

U2

AX6617

4

7

6

8

5

2

1

3

VCNTL

FB

VOUT

GND

NC

EN

POK

VIN

C6

56pF

C5

10uF

C1

1uF

C3

4.7uF

VOUT=VFB*(1+R1/R2)

VCNTL=5V

R2

78K

R1

39K

OFF

ON

(Option)