MAX8544EEP+T
ActiveSTEP-DOWN CONTROLLERS WITH PREBIAS STARTUP, LOSSLESS SENSING, SYNCHRONIZATION, AND OVP
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MAX8544EEP+T
ActiveSTEP-DOWN CONTROLLERS WITH PREBIAS STARTUP, LOSSLESS SENSING, SYNCHRONIZATION, AND OVP
Technical Specifications
Parameters and characteristics for this part
| Specification | MAX8544EEP+T |
|---|---|
| Clock Sync | True |
| Control Features | Soft Start, Current Limit, Power Good, Enable |
| Frequency - Switching [Max] | 1.2 MHz |
| Frequency - Switching [Min] | 800 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 C |
| Operating Temperature [Min] | -40 ¯C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 20-SSOP |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 20-QSOP |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 13.2 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 3 V |
| Part | Package / Case [x] | Package / Case [y] | Package / Case | Frequency - Switching [Min] | Frequency - Switching [Max] | Control Features | Operating Temperature [Max] | Operating Temperature [Min] | Synchronous Rectifier | Mounting Type | Function | Voltage - Supply (Vcc/Vdd) [Min] | Voltage - Supply (Vcc/Vdd) [Max] | Output Type | Output Configuration | Supplier Device Package | Clock Sync | Output Phases | Topology | Number of Outputs |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc./Maxim Integrated | 0.154 in | 3.9 mm | 20-SSOP | 800 kHz | 1.2 MHz | Current Limit Enable Power Good Soft Start | 85 C | -40 ¯C | Surface Mount | Step-Down | 3 V | 13.2 V | Transistor Driver | Positive | 20-QSOP | 1 | Buck | 1 | ||
Analog Devices Inc./Maxim Integrated | 0.154 in | 3.9 mm | 20-SSOP | 800 kHz | 1.2 MHz | Current Limit Enable Power Good Soft Start | 85 C | -40 ¯C | Surface Mount | Step-Down | 3 V | 13.2 V | Transistor Driver | Positive | 20-QSOP | 1 | Buck | 1 | ||
 Analog Devices Inc./Maxim Integrated | 0.154 in | 3.9 mm | 20-SSOP | 800 kHz | 1.2 MHz | Current Limit Enable Power Good Soft Start | 85 C | -40 ¯C | Surface Mount | Step-Down | 3 V | 13.2 V | Transistor Driver | Positive | 20-QSOP | 1 | Buck | 1 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 3.10 | |
| Tape & Reel (TR) | 2500 | $ 2.86 | ||
Description
General part information
MAX8544 Series
The MAX8543/MAX8544 current-mode, constant-frequency PWM buck controllers operate from a 3V to 13.2V input supply and generate adjustable 0.8V to 0.9 x VINoutput voltages at loads up to 25A. They feature adjustable switching frequency and synchronization for noise-sensitive applications.The MAX8543/MAX8544 can start with (or without) a preexisting bias on the output, without discharging the output. This feature simplifies tracking supply designs for core and I/O applications and redundant supply designs.The MAX8543/MAX8544 use the DC resistance of the output inductor as the current-sense element for lossless, low-cost current sensing. The current-sense threshold can be set to four discrete levels to accommodate inductors with different DC resistance values.The MAX8544 features a power-OK monitor and two MAX8544 controllers that can operate at 180° out-of-phase for dual-output applications.ApplicationsNetworks and TelecomServersStorageWireless Base Stations
Documents
Technical documentation and resources