MAX17502 Datasheet | Maxim Integrated

Description The MAX17502 high-efficiency, high-voltage, synchronous step-down DC-DC converter operates over a 4.5V to 60V input voltage range and is designed for a wide range of applications. The ultra-wide-input operation makes it ideal for not only industrial control and building automation, but also base stations, tele, home entertainment, and automotive applications. It delivers output currents up to 1A, at output voltages of 3.3V and 5V. The output voltage is accurate within Q1.6% over temperature. The device operates over the -40NC to +125NC industrial temperature range and is available in a tiny, 10-pin (3mm x 2mm) TDFN lead(Pb)-free package with an exposed pad. The device features peak-current-mode control with pulse-width modulation (PWM). The PWM operation ensures constant switching frequency at all operating conditions. The low-resistance, on-chip, p MOS/ n MOS switches ensure high efficiency at full load while minimizing the critical inductances, making the layout a much simpler task pared to discrete solutions. The device offers fixed switching frequency of 600k Hz. To reduce input inrush current, the device offers an adjustable voltage soft-start feature with an external capacitor from the SS pin to ground. The device also incorporates an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input-voltage level. An open-drain RESET pin provides a delayed power-good signal to the system upon achieving successful regulation of the output voltage. The device supports hiccup-mode current-limit protection for low power dissipation under overload and output short-circuit conditions. Benefits and Features S Eliminate External ponents and Reduce Total Cost - No Schottky-Synchronous Operation for High Efficiency and Reduced Cost - Internal pensation for Ultra-pact Layout - All-Ceramic Capacitors S Reduce Number of DC-DC Regulators to Stock - Wide 4.5V to 60V Operating-Voltage Range - Fixed 3.3V and 5V Output -...