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

LTC1439CG IC REG CTRLR BUCK 36SSOP

1271

-

Tube

Active

Transistor Driver

Step-Down

Positive

Buck

2

1

3.5V ~ 30V

Up to 400kHz

99%

Yes

No

-

Enable, Power on Reset, Soft Start

0°C ~ 70°C (TA)

Surface Mount

36-SSOP (0.209", 5.30mm Width)

36-SSOP

LTC3853MPUJ#PBF IC REG CTRLR BUCK 40QFN

1256

-

Tube

Active

Transistor Driver

Step-Down

Positive

Buck

3

3

4.5V ~ 24V

250kHz ~ 750kHz

98%

Yes

No

-

Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking

-55°C ~ 150°C (TJ)

Surface Mount

40-WFQFN Exposed Pad

40-QFN (6x6)

LM1770UMF SWITCHING CONTROLLER, VOLTAGE-MO

1819

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

2.8V ~ 5.5V

100kHz ~ 1MHz

-

Yes

No

-

-

-40°C ~ 125°C (TJ)

Surface Mount

SC-74A, SOT-753

SOT-23-5

LM1771UMM SWITCHING CONTROLLER, VOLTAGE-MO

2204

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

2.8V ~ 5.5V

100kHz ~ 1MHz

-

Yes

No

-

Enable

-40°C ~ 125°C (TJ)

Surface Mount

8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

8-VSSOP

LM3677LEE-1.82/NOPB SWITCHING CONTROLLER, VOLTAGE-MO

7474

*

Bulk

Active

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

LM3370TL-3806/NOPB DUAL SWITCHING CONTROLLER, VOLTA

1984

*

Bulk

Active

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

RN5RK501B-TR-FE DCDC CONVERTER 8V INPUT VFM STEP

1749

-

Tape & Reel (TR),Cut Tape (CT)

Active

Transistor Driver

Step-Up

Positive

Boost

1

1

8V

100kHz

55%

No

No

-

Enable

-40°C ~ 85°C

Surface Mount

SC-74A, SOT-753

SOT-23-5

LM1771TSD/NOPB LM1771 LOW-VOLTAGE SYNCHRONOUS B

3234

*

Bulk

Active

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

LM3743MM-300/NOPB LM3743 HIGH-PERFORMANCE SYNCHRON

6311

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

3V ~ 5.5V

300kHz

91%

Yes

No

-

Current Limit, Enable, Soft Start, Tracking

-40°C ~ 125°C (TJ)

Surface Mount

10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

10-VSSOP

LM3743MM-1000/NOPB LM3743 HIGH-PERFORMANCE SYNCHRON

2886

*

Bulk

Active

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

LM3477AMMX/NOPB LM3477 HIGH EFFICIENCY HIGH-SIDE

4684

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck, Buck-Boost

1

1

2.97V ~ 35V

500kHz

93%

No

No

-

Enable

-40°C ~ 125°C (TJ)

Surface Mount

8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

8-VSSOP

LM2745MTCX/NOPB LM2745 1-14V, VOLTAGE MODE SYNCH

3734

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

3V ~ 6V

50kHz ~ 1MHz

86%

Yes

Yes

-

Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking

-40°C ~ 125°C (TJ)

Surface Mount

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

LM2731YMF LM2731 0.6/1.6 MHZ BOOST CONVERT

10234

*

Bulk

Active

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

LM3477AMM/NOPB LM3477 HIGH EFFICIENCY HIGH-SIDE

2445

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck, Buck-Boost

1

1

2.97V ~ 35V

500kHz

93%

No

No

-

Enable

-40°C ~ 125°C (TJ)

Surface Mount

8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

8-VSSOP

LM2748MTC/NOPB LM2748 1-14V, VOLTAGE MODE SYNCH

2031

-

Bulk

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

3V ~ 6V

50kHz ~ 1MHz

86%

Yes

Yes

-

Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking

-40°C ~ 125°C (TJ)

Surface Mount

14-TSSOP (0.173", 4.40mm Width)

14-TSSOP

  • LTC1439CG

    IC REG CTRLR BUCK 36SSOP

    Details

  • LTC3853MPUJ#PBF

    IC REG CTRLR BUCK 40QFN

    Details

  • LM1770UMF

    SWITCHING CONTROLLER, VOLTAGE-MO

    Details

  • LM1771UMM

    SWITCHING CONTROLLER, VOLTAGE-MO

    Details

  • LM3677LEE-1.82/NOPB

    SWITCHING CONTROLLER, VOLTAGE-MO

    Details

  • LM3370TL-3806/NOPB

    DUAL SWITCHING CONTROLLER, VOLTA

    Details

  • RN5RK501B-TR-FE

    DCDC CONVERTER 8V INPUT VFM STEP

    Details

  • LM1771TSD/NOPB

    LM1771 LOW-VOLTAGE SYNCHRONOUS B

    Details

  • LM3743MM-300/NOPB

    LM3743 HIGH-PERFORMANCE SYNCHRON

    Details

  • LM3743MM-1000/NOPB

    LM3743 HIGH-PERFORMANCE SYNCHRON

    Details

  • LM3477AMMX/NOPB

    LM3477 HIGH EFFICIENCY HIGH-SIDE

    Details

  • LM2745MTCX/NOPB

    LM2745 1-14V, VOLTAGE MODE SYNCH

    Details

  • LM2731YMF

    LM2731 0.6/1.6 MHZ BOOST CONVERT

    Details

  • LM3477AMM/NOPB

    LM3477 HIGH EFFICIENCY HIGH-SIDE

    Details

  • LM2748MTC/NOPB

    LM2748 1-14V, VOLTAGE MODE SYNCH

    Details

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