1324

-

Bulk

Active

PWM Signal

Step-Down

Positive

Buck

4

4

4.75V ~ 5.25V

80kHz ~ 1MHz

66.7%

Yes

No

-

Enable, Frequency Control, Phase Control, Soft Start

-40°C ~ 85°C (TA)

Surface Mount

40-VFQFN Exposed Pad

40-QFN (6x6)

5400

-

Tube

Obsolete

Transistor Driver

Step-Up/Step-Down

Positive, Isolation Capable

Full-Bridge

1

1

9V ~ 16V

Up to 2MHz

99%

No

No

-

Frequency Control, Ramp, Soft Start

-40°C ~ 105°C (TA)

Surface Mount

20-SSOP (0.154", 3.90mm Width)

20-QSOP

2234

*

Bulk

Active

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

4234

*

Bulk

Active

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

1294

*

Bulk

Active

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

50

-

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

Active

Transistor Driver

Step-Up, Step-Up/Step-Down

Positive

Boost, SEPIC

2

2

8.5V ~ 36V

75kHz ~ 500kHz

96%

No

Yes

-

Enable, Frequency Control, Phase Control, Soft Start

-40°C ~ 85°C (TA)

Surface Mount

24-TSSOP (0.173", 4.40mm Width) Exposed Pad

24-TSSOP

50

-

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

Active

Transistor Driver

Step-Down

Positive

Buck

2

1

2.7V ~ 28V

Up to 1.25MHz

100%

Yes

No

-

Enable

-40°C ~ 85°C (TA)

Surface Mount

16-SSOP (0.154", 3.90mm Width)

16-QSOP

50

PolyPhase?

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

Active

Transistor Driver

Step-Up

Positive

Boost

2

2

4.5V ~ 38V

105kHz ~ 760kHz

96%

Yes

No

-

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

-40°C ~ 125°C (TJ)

Surface Mount

28-WFQFN Exposed Pad

28-QFN (4x5)

50

-

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

Active

Transistor Driver

Step-Up

Positive

Boost

2

2

4.5V ~ 38V

105kHz ~ 760kHz

96%

Yes

No

-

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

-40°C ~ 125°C (TJ)

Surface Mount

32-WFQFN Exposed Pad

32-QFN (5x5)

2243

*

Bulk

Active

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

50

-

Tube

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

4V ~ 38V

250kHz ~ 750kHz

99%

Yes

No

-

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

-40°C ~ 85°C (TA)

Surface Mount

16-SSOP (0.154", 3.90mm Width)

16-SSOP

50

-

Tube

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

4V ~ 38V

235kHz ~ 750kHz

99%

Yes

No

-

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

-40°C ~ 125°C (TJ)

Surface Mount

16-TFSOP (0.118", 3.00mm Width) Exposed Pad

16-MSOP-EP

2138

-

Tube

Obsolete

PWM Signal

Step-Down

Positive

Buck

6

6

4.75V ~ 5.25V

80kHz ~ 1MHz

66.7%

-

No

-

Enable, Frequency Control, Soft Start

-40°C ~ 85°C (TA)

Surface Mount

48-VFQFN Exposed Pad

48-QFN (7x7)

3428

-

Tube

Obsolete

PWM Signal

Step-Down

Positive

Buck

4

4

4.75V ~ 5.25V

50kHz ~ 1.5MHz

-

-

No

-

Enable, Frequency Control, Power Good

0°C ~ 70°C (TA)

Surface Mount

20-SOIC (0.295", 7.50mm Width)

20-SOIC

1246

-

Tube

Active

Transistor Driver

Step-Down

Positive

Buck

1

1

2.75V ~ 4.5V

300kHz, 550kHz, 750kHz

99%

Yes

Yes

-

Enable, Power Good, Soft Start, Tracking

-40°C ~ 85°C (TA)

Surface Mount

16-SSOP (0.154", 3.90mm Width)

16-SSOP