HT7718 datasheet(4/19 Pages) HOLTEK

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Typical Performance Characteristics

HT77XX

Rev 1.60

September 12, 2007

1 . 9 0

1 . 8 5

1 . 8 0

1 . 7 5

1 . 7 0

1 . 6 5

1 . 6 0 0

2 0

4 0

6 0

8 0

1 0 0

1 2 0

1 4 0

V I N = 1 . 0 V

V I N = 1 . 2 V

V I N = 1 . 4 V

V I N = 1 . 6 V

O u t p u t C u r r e n t ( m A )

HT7718 Output Voltage v.s Output Current

1 0

1 2

1 4

1 6

1 8

2 0

1 . 0

0 . 9

0 . 8

0 . 7

0 . 6

0 . 5

0 . 4

0 . 3

0 . 2

0 . 1

0 . 0

S t a r t - u p

H o l d - o n

O u t p u t C u r r e n t ( m A )

HT7718 Start-Up& Hold-On Voltage

2 0

4 0

6 0

8 0

1 0 0

1 2 0

1 4 0

O u t p u t C u r r e n t ( m A )

9 0 %

8 5 %

8 0 %

7 5 %

7 0 %

6 5 %

6 0 %

5 5 %

V I N = 1 . 0 V

V I N = 1 . 2 V

V I N = 1 . 6 V

V I N = 1 . 4 V

HT7718 Efficiency v.s Output Current

O u t p u t C u r r e n t ( m A )

2 . 8 0

2 . 7 5

2 . 7 0

2 . 6 5

2 . 6 0

2 . 5 5

2 . 5 0

2 0

4 0

6 0

8 0

1 0 0

1 2 0

1 4 0

V I N = 2 . 0 V

V I N = 1 . 8 V

V I N = 1 . 6 V

V I N = 1 . 2 V

HT7727 Output Voltage v.s Output Current

O u t p u t C u r r e n t ( m A )

9 0

8 5

8 0

7 5

7 0

6 5

6 0

5 5

2 0

4 0

6 0

8 0

1 0 0

1 2 0

1 4 0

V I N = 2 . 0 V

V I N = 1 . 8 V

V I N = 1 . 6 V

V I N = 1 . 2 V

HT7727 Efficiency v.s Output Current

O u t p u t C u r r e n t ( m A )

1 . 0

0 . 9

0 . 8

0 . 7

0 . 6

0 . 5

0 . 4

0 . 3

0 . 2

0 . 1

0 . 0

1 0

1 2

1 4

1 6

1 8

S t a r t u p

H o l d o n

HT7727 Start-Up& Hold-On Voltage

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