Analog Integrated Circuit Device Data

Freescale Semiconductor

9

34703

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

LINEAR REGULATOR (LDO, ISNS, LDRV, LFB) (17)

LDO Output Voltage Range (17)

0.8

–

4.5

V

LDO Feedback Voltage, LFB Pin Connected to LDO Pin

Load Regulation Error

0.784

0.8

0.816

V

LDO Voltage Margining Step Size

–

1.0

–

%

LDO Line Regulation

-1.0

–

1.0

%

LDO Load Regulation

-1.0

–

1.0

%

(18)

–

26

–

dB

(18)

–

50

–

mV

35

45

65

mV

LDO Pin Input Current

1.0

2.0

4.0

mA

LDO Feedback Input Current (LFB Pin)

-1.0

0.04

1.0

µA

LDO Drive Output Current (LDRV Pin)

2.0

4.0

5.0

mA

LDO Drive Current Limit (LDRV Pin) (18)

–

3.6

–

mA

ISNS Pin Input Leakage Current

50

125.0

200

µA

LDO Error Amplifier Input Impedance (LFB Pin) (18)

–

10

–

ΜΩ

LDO Error Amplifier Output Impedance (LCMP Pin) (18)

–

60

–

Ω

LDO Internal Pull-Down MOSFET Current Limit

0.75

1.7

2.0

A

–

–

3.2

Ω

LDO Recommended Output Capacitance

–

10

–

µF

LDO Recommended Output Capacitor ESR

–

100

–

m

Ω

Thermal Shutdown (LDO Pull-Down FET Q4) (19)

150

170

190

°C

Thermal Shutdown Hysteresis (19)

–

15

–

°C

Soft Start Duration (Power Sequencing Disabled, EN1 = 1, EN2 = 1) (18)

–

800

–

µs

Notes

17.

The LDO output range is given for the MOSFET as depicted on Figure 33. Should the customer select another MOSFET, It is the

customer’s responsibility to properly select the MOSFET given the expected power dissipation, voltage drop across it and any other

constraint that could impact the MOSFET reliability and range of work.

18.

Not production tested for typical values specified.

19.

Guaranteed by design.

Table 3. Static Electrical Characteristics (continued)

Characteristic

Symbol

Min

Typ

Max

Unit