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主要特征
应用/用途
Parametric specs for Step-Down Switching Regulators
| VIN (V) (min) | 4.5 |
| VIN (V) (max) | 60 |
| VOUT1 (V) (min) | 0.9 |
| VOUT1 (V) (max) | 54 |
| IOUT1 (A) (max) | 1.5 |
| Switch Type | Internal |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 2200 |
| Design Tools | EE-Sim |
| Package/Pins | TDFN-CU/12 |
| Budgetary Price (See Notes) | 2 |
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Technical Docs
参量
Parametric specs for Step-Down Switching Regulators
| VIN (V) (min) | 4.5 |
| VIN (V) (max) | 60 |
| VOUT1 (V) (min) | 0.9 |
| VOUT1 (V) (max) | 54 |
| IOUT1 (A) (max) | 1.5 |
| Switch Type | Internal |
| Output Adjust. Method | Resistor |
| Synchronous Switching? | Yes |
| Power Good Signal | Yes |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 2200 |
| Design Tools | generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=7397', '') |
| Package/Pins | TDFN-CU/12 |
| Budgetary Price (See Notes) | 2 |
主要特征
- Reduces External Components and Total Cost
- No Schottky-Synchronous Operation
- Internal Compensation for Any Output Voltage
- All-Ceramic Capacitors, Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 60V Input
- Adjustable 0.9V to 0.9 × VIN Output
- Continuous 1.5A Current Over Temperature
- 400kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
- Reduces Power Dissipation
- Peak Efficiency of 94%
- Auxiliary Bootstrap LDO for Improved Efficiency
- 4.65μA Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Hiccup Mode Overload Protection
- Adjustable Soft-Start
- Built-In Output-Voltage Monitoring with RESET
- Programmable EN/UVLO Threshold
- Monotonic Startup into Prebiased Load
- Overtemperature Protection
- High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range
应用/用途
- 基站电源
- 配电稳压器
- 通用负载点电源
- 高压、单板系统
- 工业控制电源
- 壁式变压器稳压
描述
The MAX17575 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input. The converter can deliver up to 1.5A and generates output voltages from 0.9V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.2% over -40°C to +125°C. Built-in compensation across the output-voltage range eliminates the need for external components. The MAX17575 features peak-current-mode control architecture and operates in fixed frequency forced PWM mode. The MAX17575 offers a low minimum on-time that allows high switching frequencies and a smaller solution size.
The device is available in a 12-pin (3mm × 3mm) TDFN package. Simulation models are available.
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