ADI chips MAX20058ATCA/VY+ 60V/1A AEC-Q100 Synchronous Step-Down DC-DC Converter with ±1.5% Regulation
General Description
The MAX20058 is a high-efficiency, high-voltage, synchro-nous step-down DC-DC converter IC with integrated MOSFETs that operates over a 4.5V to 60V input. The converters can deliver up to 1A current. Output voltage is programmable from 0.8V to 90%VIN. The feedback voltage regulation accuracy over -40°C to +125°C is ±1.5%. The IC features a peak-current-mode-control architecture and can be operated in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. The MAX20058 is available in a 12-pin (3mm x 3mm), side-wettable TDFN package with an exposed pad for thermal heat dissipation.
Applications
● 14V/24V Systems
● Truck Applications
Benefits and Features
● Synchronous DC-DC Converters with Integrated FETs
• 60V Input for 14V and 24V Systems
• Internal Compensation
● Flexibility
• Output Adjustable from 0.8V to 90%VIN
• 200kHz to 2200kHz Adjustable Frequency with
External Clock Synchronization
• Programmable Peak Current Limit (1.14A or 1.6A)
● RESET Output and EN Input (26V, max) Simplify
Power Sequencing
● Protection Features and Operating Range Ideal for
Automotive Applications
• Programmable EN/UVLO Threshold
• Adjustable Soft-Start and Prebiased Power-Up
• Thermal Shutdown
• -40°C to +125°C Automotive Temperature Range
• AEC-Q100 Qualified
Absolute Maximum Ratings
VIN to SGND ........................................................... -0.3V to +65V
EN/UVLO to SGND ................................................ -0.3V to +26V
EXTVCC to SGND .................................................. -0.3V to +14V
LX to PGND ....................................................-0.3V to VIN + 0.3V
FB, SS, MODE/ILIM,
RT/SYNC to SGND ................................... -0.3V to VCC + 0.3V
PGND to SGND ..................................................... -0.3V to +0.3V
LX Total RMS Current ......................................................... ±1.2A
RESET, VCC to SGND ............................................. -0.3V to +6V