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34702 датащи(PDF) 8 Page - Freescale Semiconductor, Inc

номер детали 34702
подробное описание детали  3.0 A Switch-Mode Power Supply with Linear Regulator
PDF  38 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

34702 датащи(HTML) 8 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
8
Freescale Semiconductor
34702
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
BUCK CONVERTER (CONTINUED)
High-Side Power MOSFET Q1 RDS(ON) (9),(10)
ID = 500 mA, TA = 25°C, VBST = 8.0 V
RDS(ON)
–60
m
Low-Side Power MOSFET Q2 RDS(ON) (9),(10)
ID = 500 mA, TA = 25°C, VBST = 8.0 V
RDS(ON)
–65
m
Buck Converter Peak Current Limit (High Level)
ILIMH
-7.0
-4.7
-4.0
A
VOUT Pulldown MOSFET Q3 Current Limit
TA = 25°C, VBST = 8.0 V
IM3_LIM
0.75
2.0
A
VOUT Pull-down MOSFET Q3 RDS(ON)
(10)
ID = 1.0 A, VBST = 8.0 V
RDS(ON)
––
1.9
Thermal Shutdown (VOUT Pull-down MOSFET Q3) (9)
TSD
150
170
190
°C
Thermal Shutdown Hysteresis (9)
TSDHYS
–10
°C
Notes
9.
Design information only. This parameter is not production tested.
10.
ID refers to the MOSFET drain current
Table 3.
Static Electrical Characteristics (continued)
Characteristics noted under conditions -40°C TA 85°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3 V using
the typical application circuit (see Figure 33) unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit



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