Analog Integrated Circuit Device Data

Freescale Semiconductor

13

34704

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

REGULATOR 8

Output Voltage Range

5.0(19)

15

15

V

Output Accuracy

-

-4.0

-

4.0

%

Feedback Reference Voltage

-

0.600(20)

-

V

Feedback Reference Voltage on current regulation mode

-

0.230(21)

-

V

Dynamic Voltage Scaling Range

-10

-

10

%

Dynamic Voltage Scaling Step Size

-

2.5

-

%

Line/Load Regulation(18)

-1.0

-

1.0

%

Continuous Output Current(18)

-

15

30

mA

Over-current Limit (Detected in low side FET)

-

1.0

-

A

Short-circuit Current Limit (Detected in the Blocking FET)

-

1.5

-

A

Over-current Limit Accuracy

-

-20

-

20

%

-

450

-

m

Ω

-

1000

-

m

Ω

-

450

-

m

Ω

-

70

-

Ω

Thermal Shutdown Threshold(18)

-

170

-

°C

Thermal Shutdown Hysteresis(18)

-

25

-

°C

SW8 Leakage Current (Off State) @25°C

-

-

1.0

μA

Notes

18.

Guaranteed by Design

19.

When Battery voltage is higher than 5.0V and VOUT8 is 5.0V, a polarization diode is necessary to achieve accurate output voltage. See

Component Calculation on page 39 for further details.

20.

21.

When in Current regulation mode, the Voltage reference is set to 0.230mV to set the maximum current, and it is internally decreased to

achieve a factor of the maximum current passing through the LED string

Table 4. Static Electrical Characteristics (continued)

Characteristics noted under conditions 2.7 V

Characteristic

Symbol

Min

Typ

Max

Unit