| Input Type | V IN (MIN) (V) |
V IN (MAX) (V) |
IOUT (A) |
Single/Multiple Output |
VOUT (V) |
POUT (W) |
Isolated/Non-Isolated | Topology |
|---|---|---|---|---|---|---|---|---|
| DC | 12 | 32 | 2.5 | Single | 5 | 12.5 | Non-Isolated | Buck |
The MAXREFDES1199 demonstrates how to build a lowcost buck DC-DC converter using the step-down converter MAX17244 for 5V DC output applications from a 12V to 32V input. This reference design delivers up to 2.5A at 5V. This design uses a two-layer board and minimizes component count to reduce cost.
The MAX17244 high-efficiency, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 3.5V to 36V input voltage range with 42V input transient protection. It uses a current-mode control architecture and can operate in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. The device can operate in dropout conditions by running at 98% duty cycle. Under light-load applications, the external sync pin FSYNC logic input allows the device to operate either in PFM mode for reduced current consumption or fixed-frequency FPWM (forced-PWM) mode to eliminate frequency variation to minimize EMI. This converter delivers up to 2.5A and generates fixed output voltages of 3.3V/5V, along with the ability to program the output voltage between 1V to 10V. This device is available in a compact 16-pin (5mm x 5mm) TQFN package with exposed pad and 16-pin TSSOP.
This board is not available for purchase.
This reference design describes the hardware shown above. It provides a detailed systematic technical guide to design a buck converter using Maxim’s MAX17244 step-down controller. The power supply has been built and tested, details of which follow later in this document.
All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.
It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.
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