开关控制器使用外部功率MOSFET，设计工程师可以灵活地设置输出电流水平和限值；针对同步设计，每通道的输出电流范围通常是5 A至25 A。ADI公司的同步开关控制器系列提供高转换效率，电压轨最低可达0.6 V，电流输出最高可达50 A。这些产品是高度可编程的，能够提供适合应用要求的性能。产品特性包括：单通道和双通道、精密使能输入、可编程软启动、欠压闭锁(UVLO)、可编程电流限值、电压余量微调、跟踪、时序控制、频率同步、3V-24V输入电压范围、电源良好指示以及25°C时0.5%的输出精度。
| Part Number | Description | Vin (min) V | Vin (max) V | Power Input Voltage (V) | Power Input Voltage (max) | Vout Adjustable (min)(V) | Vout Adjustable (max)(V) | Multiple output | Shutdown (max) (μA) | Iout (A) | Switching Feequency | Synchronous | Package | Pricing ($@1k) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADP1621 | Constant-Frequency, Current-Mode Step-Up DC/DC Controller | 2.9 | 5.5 | 1 | 100 | 1.215 | 100 | - | 10 | - | 100kHz to 1.5MHz | - | MSOP-10 | 1.32 |
| ADP1821 | Step-Down DC-to-DC Controller | 3.7 | 5.5 | 1 | 24 | 0.6 | Vin*0.85 | - | 10 | 20 | 300kHz to 600kHz Sync up to 1MHz | Yes | QSOP-16 | 1.41 |
| ADP1822 | PWM, Step-Down DC-to-DC Controller with Margining and Tracking | 3.7 | 5.5 | 1 | 24 | 0.6 | Vin*0.85 | - | 10 | 20 | 300kHz to 600kHz Sync up to 1MHz | Yes | LFCSP-24 | 1.46 |
| ADP1823 | Dual, Interleaved, Step-Down DC-to-DC Controller with Tracking | 3.7 | 18 | 1 | 24 | 0.6 | Vin*0.85 | Yes | 10 | 30A per channel | 300kHz to 600kHz Sync up to 1MHz | Yes | LFCSP-32 | 2.19 |
| ADP1828 | Synchronous Buck PWM, Step-Down, DC-to-DC Controller | 3 | 18 | 1 | 24 | 0.6 | Vin*0.85 | - | 15 | - | 300kHz to 600kHz | Yes | QSOP-20 | 1.52 |
| ADP1829 | Dual, Interleaved, Step-Down DC-to-DC Controller with Tracking | 3 | 18 | 1 | 24 | 0.6 | Vin*0.85 | Yes | 10 | 30A per channel | 300kHz to 600kHz Sync up to 1MHz | Yes | LFCSP-32 | 2.13 |
| ADP1850 | Dual Output Synchronous Buck PWM Controller | 2.75 | 20 | 2.75 | 20 | 0.6 | Vin*0.90 | Yes | 100 | 30A per channel | 200kHz to 1.5MHz | Yes | LFCSP-32 | 1.85 |
| ADP1864 | Constant Frequency Current-Mode Step-Down DC-to-DC Controller in TSOT | 3.15 | 14 | 3.15 | 14 | 0.8 | Vin | - | - | 8 | 580kHz | - | TSOT-6 | 1.06 |
| ADP1870 | Synchronous Current-Mode with Constant On-Time, Buck Controller | 2.9 | 20 | 2.9 | 20 | 0.6 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.0MHz | Yes | MSOP-10, LFCSP 10 | 1.08 |
| ADP1871 | Synchronous Current-Mode with Constant On-Time, Buck Controller, Power Saving Mode | 2.9 | 20 | 2.9 | 20 | 0.6 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.0MHz | Yes | MSOP-10, LFCSP 10 | 1.08 |
| ADP1872 | Synchronous Current-Mode Buck Controller with Constant On-time and 0.6V Reference | 2.7 | 5.5 | 2.9 | 20 | 0.6 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.2MHz | - | MSOP-10 | 1.03 |
| ADP1873 | Synchronous Current-Mode Buck Controller with Constant On-time, 0.6V Reference, and Power Saving Mode | 2.7 | 5.5 | 2.9 | 20 | 0.6 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.2MHz | - | MSOP-10 | 1.03 |
| ADP1874 | Synchronous Buck Controller with Constant On-Time and Valley Current Mode | 2.9 | 20 | 2.9 | 20 | 0.6 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.0MHz | Yes | QSOP-16 | 1.32 |
| ADP1875 | Synchronous Buck Controller with Constant On-Time, Valley Current Mode, and Power Saving Mode | 2.9 | 20 | 2.9 | 20 | 0.6 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.0MHz | Yes | QSOP-16 | 1.32 |
| ADP1876 | Dual OUtput Synchronous Buck PWM Controller plus Linear Regulator | 2.75 | 20 | 1 | 20 | 0.6 | Vin*0.90 | Yes | 200 | 25A per channel | 600kHz | Yes | LFCSP-32 | 1.89 |
| ADP1877 | Dual Output Synchronous Buck PWM Controller | 2.75 | 14.5 | 2.75 | 14.5 | 0.6 | Vin*0.90 | Yes | 200 | 30A per channel | 200kHz to 1.5MHz | Yes | LFCSP-32 | 1.69 |
| ADP1878 | Synchronous Buck Controller with Constant On-Time and Valley Current Mode | 2.9 | 20 | 2.9 | 20 | 0.6 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.0MHz | Yes | LFCSP-14 | - |
| ADP1879 | Synchronous Buck Controller with Constant On-Time, Valley Current Mode, and Power Saving Mode | 2.9 | 20 | 2.9 | 20 | 0.6 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.0MHz | Yes | LFCSP-14 | - |
| ADP1882 | Synchronous Current-Mode Buck Controller with Constant On-time and 0.8V Reference | 2.7 | 5.5 | 2.9 | 20 | 0.8 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.2MHz | - | MSOP-10 | 1.03 |
| ADP1883 | Synchronous Current-Mode Buck Controller with Constant On-time, 0.8V Reference, and Power Saving Mode | 2.7 | 5.5 | 2.9 | 20 | 0.8 | Vin*0.85 | - | 140 | 25 | 300KHz; 600KHz; 1.2MHz | - | MSOP-10 | 1.03 |
