MC34702EK View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MC34702EK

3.0 A Switch-Mode Power Supply with Linear Regulator

Freescale Semiconductor 

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

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

BUCK CONVERTER (CONTINUED)

High-Side Power MOSFET Q1 RDS(ON) (9),(10)

ID = 500 mA, TA = 25°C, VBST = 8.0 V

Low-Side Power MOSFET Q2 RDS(ON) (9),(10)

ID = 500 mA, TA = 25°C, VBST = 8.0 V

Buck Converter Peak Current Limit (High Level)

VOUT Pulldown MOSFET Q3 Current Limit

TA = 25°C, VBST = 8.0 V

VOUT Pull-down MOSFET Q3 RDS(ON)(10)

ID = 1.0 A, VBST = 8.0 V

Thermal Shutdown (VOUT Pull-down MOSFET Q3) (9)

Thermal Shutdown Hysteresis (9)

Notes

9. Design information only. This parameter is not production tested.

10. ID refers to the MOSFET drain current

RDS(ON)

RDS(ON)

ILIMH

IM3_LIM

RDS(ON)

TSD

TSDHYS

–

60

–

65

-7.0

-4.7

0.75

–

–

–

150

170

–

10

mΩ

–

mΩ

–

-4.0

A

A

2.0

Ω

1.9

190

°C

–

°C

34702

8

Analog Integrated Circuit Device Data

Freescale Semiconductor

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