The MAX5060/MAX5061 pulse-width modulation (PWM) DC-DC controllers provide high-output-current capability in a compact package with a minimum number of external components. These devices utilize an average-current-mode control that enables optimal use of low RDS(ON) MOSFETs, eliminating the need for external heatsinks even when delivering high output currents. Differential sensing (MAX5060) enables accurate control of the output voltage, while adaptive voltage positioning provides optimum transient response. An internal regulator enables operation with 4.75V to 5.5V or 7V to 28V input voltage ranges. The high switching frequency, up to 1.5MHz, allows the use of low-output inductor values and input capacitor values. This accommodates the use of PC-board-embedded planar magnetics. The MAX5060 features a clock output with 180° phase delay to control a second out-of-phase converter for lower capacitor ripple currents. The MAX5060 also limits the reverse current if the bus voltage becomes higher than the regulated output voltage. The MAX5060 is specifically designed to limit current sinking when multiple power-supply modules are paralleled. The MAX5060/MAX5061 offer an adjustable 0.6V to 5.5V output voltage. The MAX5060 offers an overvoltage protection, power-good signal, and an output enable function. The MAX5060/MAX5061 operate over the automotive temperature range (-40°C to +125°C). The MAX5060 is available in a 28-pin TSOT23-6 package.
The MAX5060 and MAX5061 are average‑current‑mode DC‑DC controllers that provide high‑output‑current capability in a compact package with minimal external components. They support input voltages of 4.75 V‑5.5 V or 7 V‑28 V and deliver an adjustable output of 0.6 V‑5.5 V, with up to 30 A output current and programmable switching frequencies from 125 kHz to 1.5 MHz.
These devices operate over an automotive temperature range of –40 °C to +125 °C. The MAX5060 is offered in a 28‑pin thin QFN package, while the MAX5061 comes in a 16‑pin TSSOP package. Features include differential sensing, clock output with 180° phase delay, over‑voltage protection, and power‑good signaling.
| Input Voltage Range | 4.75 V‑5.5 V or 7 V‑28 V |
|---|---|
| Adjustable Output Voltage | 0.6 V‑5.5 V |
| Maximum Output Current | 30 A |
| Switching Frequency Range | 125 kHz‑1.5 MHz |
| Operating Temperature Range | -40 °C to +125 °C |
| Package Types | MAX5060: 28‑pin thin QFN; MAX5061: 16‑pin TSSOP |
| Differential Sensing (MAX5060) | Enabled |
| Clock Output (MAX5060) | 180° phase delay |
The devices accept an input voltage of 4.75 V‑5.5 V or 7 V‑28 V.
They can provide up to 30 A of output current.
They are rated for –40 °C to +125 °C operation.
The switching frequency can be set between 125 kHz and 1.5 MHz.