DC-DC Buck Converters

Diodes Incorporated has developed a wide range of DC-DC Buck Converters with a robust set of features and applications. These Buck Converters offer high efficiency, cost effectiveness, design flexibility, and a wide range of other benefits all housed within compact and space saving designs.

Features and Benefits:

  • Special Gate Drive Design – A selection of buck converters feature a special gate drive design that enables operation in LDO mode, allowing for near 100% duty cycle. This provides high efficiency and consistent performance. These designs are also an ideal choice for high output voltage, high current applications which require a low dropout threshold.
  • Best-In-Class EMI Performance – Many of Diodes’ buck converters feature Frequency Spread Spectrum (FSS) which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time. They also have a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which further erases high-frequency radiated EMI noise caused by MOSFET switching.
  • Low External Component Counts - Due to its adoption of peak current mode control along with its integrated loop compensation network, a selection of Diodes’ buck converters keep external component counts low while offering little to no compromise to efficiency and performance.
  • Wide Input Voltages – Wide Input Voltages allow for greater flexibility and choice for designs. In addition, they provide increase reliability and robustness by providing greater accuracy.
  • Constant On-Time (COT) Control and Internal Proprietary Circuits – A variety of Diodes’ buck converters feature Constant On-Time control (COT) can handle wide input/output voltage ratios. The internal proprietary circuits enable some of the devices to adopt both low equivalent series resistance (ESR) output capacitors, such as SP-CAP or POSCAP and ultra-low ESR ceramic capacitors.
  • Rich Protection Features: UVLO, OVP, OCP, OTP, SCP etc. - Comprehensive protection features built into Diodes’ buck converters protect both the end system and the device itself. These include hiccup mode short-circuit protection (SCP), under-voltage lock-out (UVLO), over-temperature protection (OTP) and over-current protection (OCP).
  • Automotive DC-DC Converters – Many of Diodes’ buck converters are suitable for automotive applications requiring specific change control. Parts are AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities.

Vinmax 60V

AP66200

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 16-UQFN Exposed Pad

AP66200Q

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 16-UQFN Exposed Pad

AP66300

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 16-UQFN Exposed Pad

AP66300Q

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 16-UQFN Exposed Pad

Vinmax 40V

AP64060

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 600mA SOT-23-6 Thin, TSOT-23-6

AP64060Q

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 600mA SOT-23-6 Thin, TSOT-23-6

AP64100

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 1A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

AP64100Q

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 1A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

AP64102

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 1A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

AP64102Q

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 1A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

AP64200

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

AP64200Q

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

AP64202

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

AP64202Q

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) Exposed Pad

AP64203Q

Buck Switching Regulator IC Positive Adjustable 3.8V 1 Output 2A 16-UQFN Exposed Pad

AP64303Q

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 16-UQFN Exposed Pad

AP64350

3.8V to 40V Input, 3.5A Low IQ Synchronous Buck Converter

AP64351

3.8V to 40V Input, 3.5A Low IQ Synchronous Buck Converter

AP64352

3.8V to 40V Input, 3.5A Low IQ Synchronous Buck Converter

AP64500

3.8V to 40V Input, 5A Low IQ Synchronous Buck Converter

AP64501

3.8V to 40V Input, 5A Low IQ Synchronous Buck Converter

Vinmax 32V

AP63200

3.8V-32V Input, 2A Low IQ Synchronous Buck with Enhanced EMI Reduction

AP63201

3.8V-32V Input, 2A Low IQ Synchronous Buck with Enhanced EMI Reduction

AP63203

3.8V-32V Input, 2A Low IQ Synchronous Buck with Enhanced EMI Reduction

AP63205

3.8V-32V Input, 2A Low IQ Synchronous Buck with Enhanced EMI Reduction

AP63300

3.8V-32V Input, 3A Low IQ Synchronous Buck with Enhanced EMI Reduction

AP63301

3.8V-32V Input, 3A Low IQ Synchronous Buck with Enhanced EMI Reduction

AP63356

3.8V-32V Input, 3.5A Low IQ Synchronous Buck with Enhanced EMI Reduction PWM Only

AP63357

3.8V-32V Input, 3.5A Low IQ Synchronous Buck with Enhanced EMI Reduction PFM/PWM

Vinmax 18V

AP62150

4.2V to 18V Input, 1.5A Low IQ Synchronous Buck Converter

AP62200

4.2V to 18V Input, 2A Low IQ Synchronous Buck Converter, PFM/PWM

AP62200T

4.2V to 18V Input, 2A Low IQ Synchronous Buck Converter, PFM/PWM, Vref 0.463V

AP62201

4.2V to 18V Input, 2A Low IQ Synchronous Buck Converter, PWM Only

AP62250

4.2V to 18V Input, 2.5A High Frequency Synchronous Buck Converter

AP62300

4.2V to 18V Input, 3A Low IQ Synchronous Buck Converter, PFM/PWM

AP62300T

4.2V to 18V Input, 3A Low IQ Synchronous Buck Converter, PFM/PWM, Vref 0.463V

AP62301

4.2V to 18V Input, 3A Low IQ Synchronous Buck Converter, PWM Only

AP62600

4.5V to 18V Input, 6A Full Featurd Set Synchronous Buck Converter

Vinmax 5.5V

AP61062Q

Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 600mA

AP61200

Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 2A

AP61201

Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 2A

AP61202

Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 2A

AP61203

Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 2A

AP61300

Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 3A

AP61300Q

Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 3A

AP61302

Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 3A

AP61302Q

Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 3A

AP61100

2.3V to 5.5V input, 1A Low IQ Synchronous Buck Converter

AP61102

2.3V to 5.5V input, 1A Low IQ Synchronous Buck Converter with PG

Automotive Compliance*

AP61100Q

Automotive-Compliant, 3.8V to 5.5V input, 1A low IQ synchronous buck converter

AP61102Q

Automotive-Compliant, 3.8V to 5.5V input, 1A low IQ synchronous buck converter with PG

AP63356Q

Automotive-Compliant, 3.8V to 32V input, 3.5A low IQ synchronous buck converter that operates in PFM

AP63357Q

3.8V to 40V Input, 5A Low IQ Synchronous Buck Converter

AP64350Q

Automotive-Compliant, 3.8V to 40V input, 3.5A low IQ synchronous buck with programmable frequency

AP64351Q

Automotive-Compliant, 3.8V to 40V input, 3.5A low IQ synchronous buck with programmable soft-start

AP64352Q

Automotive-Compliant, 3.8V to 40V input, 3.5A low IQ synchronous buck with programmable frequency and soft-start

*Automotive-compliant products are AEC-Q qualified and are manufactured at IATF 16949 certified facilities supporting PPAP documentation.