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MC33998

Switching Power Supply with Linear Regulators

Freescale Semiconductor 

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

Table 3. 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

2.5

VDDL Line Regulation

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

REGLNVDDL

-30

VDDL Load Regulation

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

REGLDVDDL

-70

DRVL Output Current

VPWR = KA_VPWR = 14 V, VDRVL = 1.0 V

IDRVL

5.0

VDDL Active Discharge Resistance

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

RLDISCH

1.0

VDDH to VDDL Active Clamp Resistance

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

VDDL Output Capacitor Capacitance (12)

VDDL Output Capacitor ESR (12)

KEEP-ALIVE (STANDBY) REGULATOR (VKAM)

RCLAMP

0.6

CVDDL

–

ESRVDDL

–

VKAM Output Voltage

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

VKAM

2.5

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

2.5

2.5

2.5

2.0

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

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

REGLNVKAM

-20

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

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

REGLDDVKAM

0

Differential Voltage VKAM - VDDL

REGVKAM

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

-20

VKAM Output Capacitor Capacitance (12)

VKAM Output Capacitor ESR (12)

CVKAM

–

ESRVKAM

–

Notes

12. Recommended value.

2.6

–

–

11

–

–

68

0.125

–

–

–

–

–

–

–

–

4.7

1.4

V

2.7

mV

30

mV

70

mA

25

Ω

10

Ω

10

–

µF

–

Ω

V

2.7

V

2.7

2.7

2.7

2.7

mV

20

mV

100

mV

60

–

µF

–

Ω

33998

8

Analog Integrated Circuit Device Data

Freescale Semiconductor

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