LT1930A
Краткое описание:
2.2MHz 1A Step-Up DC/DC Converter in ThinSOT
Дополнительная информация
Step-up DC/DC converter uses a constant-frequency, internally compensated current-mode PWM architecture for compact boost, SEPIC, and flyback designs. The device operates from a 2.6 V to 16 V input range and includes an internal 1 A, 36 V power switch. The LT1930A switching frequency is 2.2 MHz, enabling small surface-mount inductors and capacitors. It supports output voltages up to 34 V, has a 1.255 V feedback reference, and draws less than 1 µA in shutdown. The family is supplied in a low-profile 5-lead ThinSOT package for space-constrained power supplies.
| Package | 5-lead plastic SOT-23 ThinSOT |
| Converter Type | Step-up DC/DC converter |
| Feedback Voltage | 1.255 typ, 1.240 min, 1.270 maxV |
| Shutdown Current | 0.01 typ, 1 maxµA |
| Quiescent Current | 5.5 typ, 8 maxmA |
| Maximum Duty Cycle | 90 typ, 75 min% |
| FB Pin Bias Current | 240 typ, 720 maxnA |
| Switching Frequency | 2.2 typ, 1.8 min, 2.6 maxMHz |
| Control Architecture | Constant-frequency current-mode PWM |
| Switch Voltage Rating | 36V |
| Maximum Output Voltage | 34V |
| Maximum Operating Voltage | 16V |
| Minimum Operating Voltage | 2.6 max, 2.45 typV |
| Reference Line Regulation | 0.01 typ, 0.05 max%/V |
| Switch Saturation Voltage | 400 typ, 600 max at 1 AmV |
| Operating Temperature Range | -40 to 85°C |
| Maximum Junction Temperature | 125°C |
| Internal Switch Current Limit | 1.2 typ, 1 min, 2.5 maxA |
