Conv DC-DC Single Step Down 4.5V to 30V 16-Pin SOIC T/R
The MAX796/MAX797/MAX799 high-performance, step-down DC-DC converters with single or dual outputs provide main CPU power in battery-powered systems. These buck controllers achieve 96% efficiency by using synchronous rectification and Maxim"s proprietary Idle Mode control scheme to extend battery life at full-load (up to 10A) and no-load outputs. Excellent dynamic response corrects output transients caused by the latest dynamic-clock CPUs within five 300kHz clock cycles. Unique bootstrap circuitry drives inexpensive N-channel MOSFETs, reducing system cost and eliminating the crowbar switching currents found in some PMOS/NMOS switch designs. The MAX796/MAX799 are specially equipped with a secondary feedback input (SECFB) for transformer-based dual-output applications. This secondary feedback path improves cross-regulation of positive (MAX796) or negative (MAX799) auxiliary outputs. The MAX797 has a logic-controlled and synchronizable fixed-frequency pulse-width-modulating (PWM) operating mode, which reduces noise and RF interference in sensitive mobile-communications and pen-entry applications. The SKIP-bar override input allows automatic switchover to idle-mode operation (for high-efficiency pulse skipping) at light loads, or forces fixed-frequency mode for lowest noise at all loads. The MAX796/MAX797/MAX799 are all available in 16-pin DIP and narrow SO packages. See the table below to compare these three converters.
- 96% Efficiency
- 4.5V to 30V Input Range
- 2.5V to 6V Adjustable Output
- Preset 3.3V and 5V Outputs (at up to 10A)
- Multiple Regulated Outputs
- +5V Linear-Regulator Output
- Precision 2.505V Reference Output
- Automatic Bootstrap Circuit
- 150kHz/300kHz Fixed-Frequency PWM Operation
- Programmable Soft-Start
- 375µA Typ Quiescent Current (VIN = 12V, VOUT = 5V)
- 1µA Typ Shutdown Current
Характеристики
| Бренд | Maxim Integrated |
|---|---|
| Описание продукта | 10(Max) x 4(Max) x 1.5(Max) |
| Lead Finish | Matte Tin |
| Рабочая температура | 0 to 70 °C |
| Schedule B | 8542310000 |
| HTSN | 8542310001 |
| Load Regulation | 1.5 % |
| Output Voltage | 2.5 to 6 V |
| Maximum I | 30 V |
| Operating | 4.5 to 30 V |
| Supplier | SOIC |
| Type Prod | Step Down |
| Line Regulation | 0.06 %/V |
| Screening Level | Commercial |
| Output Type | Adjustable|Fixed |
| Efficiency | 96 % |
| Msl Level | 1 |
| Switching | 125 to 175|270 to 330 kHz |
| Number Of | 1 |
| Minimum I | 4.5 V |
| Output Current | 10 A |
SKU: MAX797CSE+TG068