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FAN5069
(Rev.:2005)

PWM and LDO Controller Combo

Fairchild Semiconductor 

Electrical Characteristics (Contd.)

Unless

The ‘•’

otherwise noted,

denotes that the

VCC = 5V, TA = 25°C, using circuit in Figure 1.

specifications apply to the full ambient operating

temperature

range.

See

Notes

4

and

5.

Symbol

Parameter

Protection/Disable

ILIM

ISWPD

VUV

ILIMIT Source Current

SW Pull-down Current

SW Pull-down Current

VOV Under-voltage Shutdown

Supply Current

Thermal Shutdown

Enable Threshold Voltage

Conditions

SW = 1V, EN = 0V

As % of set point.

2μS noise filter

As % of set point.

2μS noise filter

Enable Condition

Enable Threshold Voltage

Disable Condition

Enable Source Current

LDO (See Note 7)

VCC = 5V

VLDOREF Reference Voltage (measured TA = 0°C to 70°C

at FBLDO pin)

TA = -40°C to 85°C

Regulation

VLDO_DO Drop-out Voltage

External Gate Drive

Gate Drive Source Current

Gate Drive Sink Current

0A ≤ ILOAD ≤ 5A

ILOAD ≤ 5Aand RDS–ON < 50mΩ

VCC = 4.75V

VCC = 5.6V

Min. Typ. Max. Unit

9

10

11

μA

10

mA

•

65

75

80

%

• 110

115

120

%

160

°C

•

2.0

V

•

0.8

V

50

μA

• 775

800

825

mV

• 770

800

830

mV

• 1.17

1.2

1.23

V

0.3

V

•

4.5

V

•

5.3

V

1.2

mA

400

μA

Notes:

4. All limits at operating temperature extremes are guaranteed by design, characterization and statistical quality control.

5. AC specifications guaranteed by design/characterization (not production tested).

6. For a case when VCC is higher than the typical 5V VCC. Voltage observed at VCC pin when the internal shunt regulator is sinking

current to keep voltage on VCC pin constant.

7. Test Conditions: VLDO_IN = 1.5V and VLDO_OUT = 1.2V

FAN5069 Rev. 1.1.0

6

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