DC DC Switching Controllers：

Compare Mfr Part # Quantity Available Series Package Product Status Output Type Function Output Configuration Topology Number of Outputs Output Phases Voltage - Supply (Vcc/Vdd) Frequency - Switching Duty Cycle (Max) Synchronous Rectifier Clock Sync Serial Interfaces Control Features Operating Temperature Mounting Type Package / Case Supplier Device Package

FAN5029MPX SWITCHING CONTROLLER

314071

-

Bulk

Obsolete

PWM Signal

Step-Down

Positive

Buck

5

5

-

1MHz

-

-

No

-

Current Limit, Enable, Soft Start

0°C ~ 85°C (TA)

Surface Mount

40-WFQFN Exposed Pad

40-MLP (6x6)

FAN6520AM SWITCHING CONTROLLER

9818

-

Tube

Obsolete

Transistor Driver

Step-Down

Positive

Buck

1

1

4.5V ~ 5.5V

300kHz

100%

Yes

No

-

Enable

0°C ~ 70°C (TA)

Surface Mount

8-SOIC (0.154", 3.90mm Width)

8-SOIC

ISL6729IB SWITCHING REGULATOR

1840

-

Tube

Obsolete

Transistor Driver

Step-Up/Step-Down

Positive, Isolation Capable

Flyback, Forward Converter

1

1

4.75V ~ 5.25V

Up to 1MHz

99%

Yes

No

-

-

-40°C ~ 105°C (TA)

Surface Mount

8-SOIC (0.154", 3.90mm Width)

8-SOIC

MAX1980ETP-T QUICK-PWM DC-DC CONVERTER

18734

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

4.5V ~ 5.5V

200kHz, 300kHz, 550kHz

-

Yes

No

-

Current Limit, On Time Control, Pulse Skipping

-40°C ~ 100°C (TA)

Surface Mount

20-WQFN Exposed Pad

20-TQFN (5x5)

MAX1980ETP QUICK-PWM DC-DC CONVERTER

51344

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

4.5V ~ 5.5V

200kHz, 300kHz, 550kHz

-

Yes

No

-

Current Limit, On Time Control, Pulse Skipping

-40°C ~ 100°C (TA)

Surface Mount

20-WQFN Exposed Pad

20-TQFN (5x5)

ISL6401IB-T SWITCHING CONTROLLER

3734

-

Bulk

Active

Transistor Driver

Step-Up, Step-Up/Step-Down

Positive, Isolation Capable

Boost, Flyback

1

1

4.5V ~ 5.5V

50kHz ~ 500kHz

48%

No

Yes

-

Enable, Frequency Control, Soft Start, Sync

-40°C ~ 85°C (TA)

Surface Mount

14-SOIC (0.154", 3.90mm Width)

14-SOIC

ISL6401IB SWITCHING CONTROLLER

2224

-

Bulk

Active

Transistor Driver

Step-Up, Step-Up/Step-Down

Positive, Isolation Capable

Boost, Flyback

1

1

4.5V ~ 5.5V

50kHz ~ 500kHz

48%

No

Yes

-

Enable, Frequency Control, Soft Start, Sync

-40°C ~ 85°C (TA)

Surface Mount

14-SOIC (0.154", 3.90mm Width)

14-SOIC

ISL6439ACB SWITCHING CONTROLLER

4029

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

2.97V ~ 3.63V

600kHz

100%

Yes

No

-

Enable, Frequency Control, Phase Control, Soft Start

0°C ~ 70°C (TA)

Surface Mount

14-SOIC (0.154", 3.90mm Width)

14-SOIC

ISL6439ACB-T VOLTAGE MODE PWM CONTROLLER 0.8V

3734

-

Bulk

Active

Transistor Driver

-

Positive

Buck

1

1

2.97V ~ 3.63V

600kHz

100%

Yes

No

-

Enable, Frequency Control, Phase Control, Soft Start

0°C ~ 70°C (TA)

Surface Mount

14-SOIC (0.154", 3.90mm Width)

-

FAN6520AIMX SWITCHING CONTROLLER

6699

-

Bulk

Obsolete

Transistor Driver

Step-Down

Positive

Buck

1

1

4.5V ~ 5.5V

300kHz

100%

Yes

No

-

Enable

-40°C ~ 85°C (TA)

Surface Mount

8-SOIC (0.154", 3.90mm Width)

8-SOIC

ISL6439ACR SWITCHING CONTROLLER

3234

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

2.97V ~ 3.63V

600kHz

100%

Yes

No

-

Enable, Frequency Control, Phase Control, Soft Start

0°C ~ 70°C (TA)

Surface Mount

16-VQFN Exposed Pad

16-QFN (5x5)

ISL6439CR SWITCHING CONTROLLER

3188

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

2.97V ~ 3.63V

300kHz

100%

Yes

No

-

Enable, Frequency Control, Phase Control, Soft Start

0°C ~ 70°C (TA)

Surface Mount

16-VQFN Exposed Pad

16-QFN (5x5)

ISL6439ACR-T SWITCHING CONTROLLER

7234

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

2.97V ~ 3.63V

600kHz

100%

Yes

No

-

Enable, Frequency Control, Phase Control, Soft Start

0°C ~ 70°C (TA)

Surface Mount

16-VQFN Exposed Pad

16-QFN (5x5)

ADP3161JR-REEL7 4-BIT PROG BUCK CONTROLLER

5234

-

Bulk

Active

PWM

Step-Down

Positive

Buck

2

2

5V, 12V

Up to 2MHz

50%

Yes

-

-

-

0°C ~ 70°C (TA)

Surface Mount

16-SOIC (0.154", 3.90mm Width)

16-SOIC

IR3710MTRPBF WIDE INPUT AND OUTPUT, SYNCHRONO

3036

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

3V ~ 28V

Up to 1MHz

-

Yes

No

-

Current Limit, Enable, Power Good, Soft Start

0°C ~ 125°C (TJ)

Surface Mount

16-VFQFN Exposed Pad

16-MLPQ (3x3)

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