MC34703 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MC34703

10A+ Switch-Mode Power Supply with LDO Regulator

Freescale Semiconductor 

ELECTRICAL CHARACTERISTICS

MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

MAXIMUM RATINGS

Table 2. Maximum Ratings

All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or

permanent damage to the device.

Ratings

Symbol

Value

Unit

ELECTRICAL RATINGS

Supply Voltage

Switching Node

Buck Regulator Bootstrap Input (BOOT - SW)

VIN1, VIN2

-0.3 to 14

V

SW

-1.0 to 14

V

BOOT

-0.3 to 8.5

V

Differential Voltage (SR - SW)

Boost Regulator Output (1)

Boost Regulator Drain

RESET Drain Voltage

VSR

-0.3 to 8.5

V

VBST

-0.3 to 8.5

V

VBD

-0.3 to 9.5

V

RESET

-0.3 to 7.0

V

Enable Pins (EN1, EN2)

Logic Pins (SDA, SCL, CLKSYN)

Analog Pins (INV, VOUT)

Analog Pins (LDRV, LFB, LDO, LCMP, ISNS)

Analog Pins (CLKSEL, ADDR, RT, FREQ, VDDI)

ESD Voltage

Human Body Model (2)

Machine Model (3)

VENABLE

-0.3 to 14

V

VLOGIC

-0.3 to 7.0

V

VANALOG1

-0.3 to 7.0

V

VANALOG2

-0.3 to 8.5

V

VANALOG3

-0.3 to 3.6

V

V

VESD1

VESD2

±2000

±200

THERMAL RATINGS

Storage Temperature

Power Dissipation (TA = 85°C) (4)

Lead Soldering Temperature (5)

Maximum Operating Junction Temperature

Package Operating Temperature Range (Ambient Temperature)

TSTG

-65 to 150

°C

PD

2.0

W

TSOLDER

245

°C

TJMAX

125

°C

TA

-40 to 85

°C

THERMAL RESISTANCE

Thermal Resistance, Junction to Ambient (6)

Thermal Resistance, Junction to Base (7)

RθJA

RθJB

38

~1.0

°C/W

°C/W

Notes

1. Maximum recommended filter capacitor: 10 µF. (Note, VBST pin is not short-circuit protected.)

2. ESD1 testing is performed in accordance with the Human Body Model (CZAP=100 pF, RZAP=1500 Ω).

3. ESD2 testing is performed in accordance with the Machine Model (CZAP=200 pF, RZAP=0 Ω).

4. Maximum still-air power dissipation at indicated ambient temperature; higher power dissipations may be possible with additional heat-

sinking and forced-air cooling.

5. Lead soldering temperature limit is for 10 seconds maximum duration. Contact Freescale Sales Office for immersion soldering time/

temperature limits.

6. Thermal resistance measured in accordance with EIA/JESD51-2.

7. Theoretical thermal resistance from the die junction to the exposed heat-sinking pins.

34703

6

Analog Integrated Circuit Device Data

Freescale Semiconductor

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