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主要特征
应用/用途
Parametric specs for Step-Up Switching Regulators
| VIN (V) (min) | 2.5 |
| VIN (V) (max) | 36 |
| VOUT1 (V) (min) | 4 |
| VOUT1 (V) (max) | 36 |
| IOUT1 (A) (max) | 50 |
| Switch Type | External |
| Output Adjust. Method | Resistor |
| Power Good Signal | Yes |
| ICC (mA) (typ) | 1.25 |
| Shutdown Mode Supply Current (µA) (typ) | 4 |
| Shutdown Mode Supply Current (µA) (max) | 7 |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 1000-2500 |
| Design Tools | EE-Sim |
| Package/Pins | TQFN-CU/12 UMAX/10 |
| Budgetary Price (See Notes) | 1.89 |
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参量
Parametric specs for Step-Up Switching Regulators
| VIN (V) (min) | 2.5 |
| VIN (V) (max) | 36 |
| VOUT1 (V) (min) | 4 |
| VOUT1 (V) (max) | 36 |
| IOUT1 (A) (max) | 50 |
| Switch Type | External |
| Output Adjust. Method | Resistor |
| Power Good Signal | Yes |
| ICC (mA) (typ) | 1.25 |
| Shutdown Mode Supply Current (µA) (typ) | 4 |
| Shutdown Mode Supply Current (µA) (max) | 7 |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 1000-2500 |
| Design Tools | generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=6425', '') |
| Package/Pins | TQFN-CU/12 UMAX/10 |
| Budgetary Price (See Notes) | 1.89 |
主要特征
- Reduces Solution Size and Cost
- All-Ceramic Capacitor Solution Allows Ultra-Compact Solution Size
- 100kHz to 1MHz (MAX17290) and 1MHz to 2.5MHz (MAX17292) Switching-Frequency with External Synchronization
- Increases Design Flexibility
- Bootstrapped Mode Allows Input Voltage to be 2.5V
- Adjustable Slope Compensation
- Reduces Power Dissipation
- >90% Peak Efficiency
- Low 4μA (typ.) Shutdown Current
- Operates Reliably
- 42V Input Voltage Transient Protection
- Fixed 9ms Internal Software Start Reduces Input Inrush Current
- PGOOD Output and Hiccup Mode for Enhanced System Protection
- Overtemperature Shutdown
- Reduced EMI Emission with Spread-Spectrum Control
应用/用途
- Distributed Supply Regulation
- General-Purpose Point-of-Load
- Offline Power Supplies
- Telecom Hardware
描述
The MAX17290/MAX17292 high-efficiency, synchronous step-up DC-DC controllers operate over a 4.5V to 36V input voltage range with 42V input transient protection. The input operating range can be extended to as low as 2.5V in Bootstrapped mode.
The MAX17290 and MAX17292 use a constant-frequency, pulse-width modulating (PWM), peak current-mode control architecture. There are multiple versions of the devices offering one or more of the following functions: a synchronization output (SYNCO) for 180° out-of-phase operation, an overvoltage protection function using a separate input pin (OVP), and a reference input pin (REFIN) to allow on-the-fly output voltage adjustment.
The MAX17290 and MAX17292 operate in different frequency ranges. All versions can be synchronized to an external master clock using the FSET/SYNC input.
The devices are available in a compact 12-pin (3mm x 3mm) TQFN and 10-pin μMAX packages. Both packages have exposed pads. -40°C to +85°C Operation.
The MAX17290 and MAX17292 use a constant-frequency, pulse-width modulating (PWM), peak current-mode control architecture. There are multiple versions of the devices offering one or more of the following functions: a synchronization output (SYNCO) for 180° out-of-phase operation, an overvoltage protection function using a separate input pin (OVP), and a reference input pin (REFIN) to allow on-the-fly output voltage adjustment.
The MAX17290 and MAX17292 operate in different frequency ranges. All versions can be synchronized to an external master clock using the FSET/SYNC input.
The devices are available in a compact 12-pin (3mm x 3mm) TQFN and 10-pin μMAX packages. Both packages have exposed pads. -40°C to +85°C Operation.
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