MC33997DW Freescale Semiconductor, MC33997DW Datasheet - Page 11

• Manufacturer Part Number: MC33997DW
• Description: IC SWITCH 3.3/5V SUPPLY 24-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MC33997DW

• Applications: Switching Power Supply, Microprocessor
• Voltage - Input: 6 ~ 26.5 V
• Number Of Outputs: 5
• Voltage - Output: 3.3V, 5V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table 4. Dynamic Electrical Characteristics
Figure
conditions unless otherwise noted.
BUCK REGULATOR (VDDH)
CHARGE PUMP (CRES)
SENSOR SUPPLIES (VREF1, VREF2)
SUPERVISORY CIRCUITS (VPWR)
Notes
Analog Integrated Circuit Device Data
Freescale Semiconductor
Switching Frequency
Soft Start Duration (see
Charge Pump Current Ramp-Up Time
Charge Pump Ramp-Up Time
V
V
PWROK Delay Time (Power-On Reset) (see
VKAMOK Delay Time (see
VDDH Power-Up Delay Time (see
Fault-Off Timer Delay Time (see
13.
REF
REF
Characteristics noted under conditions 9.0 V
V
V
V
V
EN = 5.0 V, SNSEN = 5.0 V
V
EN = 5.0 V, SNSEN = 5.0 V
PWR
PWR
PWR
REF
REF
Overcurrent Detection Time (see
Retry Timer Delay (see
Guaranteed by design but not production tested.
) unless otherwise noted. Typical values noted reflect the approximate parameter mean at T
Load R
Load R
= KA_V
= KA_V
= KA_V
L
L
PWR
PWR
PWR
= 5.0 Ω to GND, V
= 5.0 Ω to GND, V
(13)
= 6.0 V
= 14 V, C
= 7.0 V, C
Figure
Figure
Figure
Characteristic
4)
RES
RES
Figure
7)
Figure
= 22 nF, V
DDH
DDH
7)
= 22 nF, V
Figure
9)
DYNAMIC ELECTRICAL CHARACTERISTICS
= 5.1 V, V
= 5.1 V, V
8)
Figure
7)
CP
CP
= 1.0 V to 11 V
= 7.0 V to 10 V
PWR
PWR
≤
6)
V
PWR
= KA_V
= KA_V
≤
16 V, -40°C
PWR
PWR
= 10 V,
= 10 V,
≤
T
t
J
t
D(VKAMOK)
D(PWROK)
t
Symbol
= T
D(VPWR)
t
t
CRES
CRES
t
t
t
f
t
DET
RET
FAIL
SW
SS
A
≤
125°C using the typical application circuit (see
DYNAMIC ELECTRICAL CHARACTERISTICS
Min
5.0
1.0
1.0
0.5
5.0
5.0
1.0
1.0
10
–
ELECTRICAL CHARACTERISTICS
Typ
750
A
–
–
–
–
–
–
–
–
–
= 25°C under nominal
Max
2.0
15
20
10
20
15
30
10
10
–
Unit
kHz
ms
ms
ms
ms
ms
ms
ms
ms
µs
33997
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