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33997

Switching Power Supply with Linear Regulators

Freescale Semiconductor 

Freescale Semiconductor, Inc.

STATIC ELECTRICAL CHARACTERISTICS (continued)

Characteristics noted under conditions 9.0 V ≤ VPWR ≤ 16 V, -40°C ≤ TJ = TA ≤ 125°C, using the typical application circuit (see

Figure 8) unless otherwise noted. Typical values noted reflect the approximate parameter mean at TA = 25°C under nominal

conditions unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

LINEAR REGULATOR VDDL

VDDL Output Voltage

VPWR = KA_VPWR = 14 V, IVDDL = 200 mA

VDDL

V

3.15

–

3.45

VDDL Line Regulation

VDDH = 4.8 V to 5.2 V, IVDDL = 400 mA

RegLnVDDL

mV

-70

–

70

VDDL Load Regulation

VPWR = KA_VPWR = 14 V, IVDDL = 10 mA to 400 mA

RegLdVDDL

mV

-70

–

70

DRVL Output Current

VPWR = KA_VPWR = 14 V, VDRVL = 1.0 V

IDRVL

mA

5.0

11

25

VDDL Active Discharge Resistance

VPWR = KA_VPWR = 14 V, EN = 0 V, IFBL = 10 mA

RLDisch

Ω

1.0

–

10

VDDH to VDDL Active Clamp Resistance

VPWR = KA_VPWR = 14 V, EN = 0 V, IVDDH = 50 mA, VFBKB = 0 V

RCLAMP

Ω

0.6

–

10

VDDL Output Capacitor Capacitance (Note 12)

CVDDL

–

68

–

µF

VDDL Output Capacitor ESR (Note 12)

ESRVDDL

–

0.125

–

Ω

KEEP-ALIVE (STANDBY) REGULATOR VKAM

VKAM Output Voltage

IVKAM = 5.0 mA, VPWR = KA_VPWR = 18 V, EN = 5.0 V

VKAM

V

3.0

–

3.6

VKAM Output Voltage, EN = 0 V (Standby Mode)

VPWR = KA_VPWR = 26 V, IVKAM = 0.5 mA

VPWR = KA_VPWR = 18 V, IVKAM = 5.0 mA

VPWR = KA_VPWR = 5.0 V, IVKAM = 10.0 mA

VPWR = 0 V, KA_VPWR = 3.5 V, IVKAM = 5.0 mA

VKAM

V

3.0

–

3.6

3.0

–

3.6

3.0

–

3.6

2.0

–

3.5

VKAM Line Regulation, EN = 0 V (Standby Mode)

VPWR = KA_VPWR = 5.0 V to 18 V, IVKAM = 2.0 mA

RegLnVKAM

mV

-20

–

20

VKAM Load Regulation, EN = 0 V (Standby Mode)

VPWR = KA_VPWR = 14 V, IVKAM = 1.0 mA to 10 mA

RegLdVKAM

0

mV

–

100

Differential Voltage VKAM - VDDL

RegVKAM

mV

EN = 5.0 V, IVKAM = 5.0 mA, VPWR = KA_VPWR = 14 V, IVDDL = 200 mA

-20

–

20

VKAM Output Capacitor Capacitance (Note 12)

CVKAM

–

4.7

–

µF

VKAM Output Capacitor ESR (Note 12)

ESRVKAM

–

1.4

–

Ω

Notes

12. Recommended value.

MOTOROLA ANALOG INTEGRATED CIRFCoUIrTMDEoVrICeEIDnAfoTArmation On This Product,

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