Click here to ask about the production status of specific part numbers. MAX20333 Adjustable Current-Limit Switch with Low-Power Mode General Description Benefits and Features The MAX20333/A/B/C/D/E/F/G/H/I/J/K/L/M/N program- Flexible Operation mable current-limit switches feature internal current lim- Wide Range of Programmable Current Limit (0.2A iting to prevent damage to host devices due to faulty to 4.75A) load conditions. These current limit switches feature a low Wide Operating Range: 3.5V to 22V (MAX20333/A/ 23m (typ) on-resistance and operate from a +3.5V to B/C/D/E/F/G/H/I/J/K), 3.3V to 22V (MAX20333L/M/ +22V input voltage range (MAX20333/A/B/C/D/E/F/G/H/I/ N) J/K), or +3.3V to +22V input voltage range (MAX20333L/ Three Different Current-Limit Modes: NM, HCM, M/N). LPM Three Different Current-Limit Behaviors: Autoretry, The MAX20333 family has three working modes: normal Latchoff, Continuous mode (NM), high current mode (HCM), and low power Power Good Input mode (LPM). In NM, the device offers a programmable Current Monitoring current-limit protection from 0.2A to 4.75A. The current- limit threshold can be programmed by connecting a suit- Safe Operation able resistor to the SETI bump. When the current reaches Precision Current Limit the programmed threshold, the part prevents the current Output Short Protection to further increase. The device can react in three different Thermal Protection ways while in current limit: autoretry, latchoff, and continu- Flag Output ous. The voltage on the SETI bump is proportional to the UL 2367 RecognizedFile No. E211395 current flowing out of the OUT bump at any time and can MAX20333/A/F/G Only be read by an ADC. 4.9A/100W Maximum In high current mode (HCM), the current-limit threshold is Power Saving multiplied by two, with an internal upper limit set at 5.5A. Low Power Mode (LPM) with Output Short The voltage on SETI is proportional to the current flowing Protection into IN, but multiplied by a factor 0.5. In low power mode (LPM), the current consumption of the part is dramatical- Ordering Information appears at end of data sheet. ly reduced, and the on-resistance is 420m (typ), while still offering an overcurrent protection. The switch is open when the current flowing through the switch exceeds 0.4A (typ). The devices are available in a 15-bump (2.1mm x 1.52mm) WLP package and operate over the -40C to +85C extended temperature range. Applications USB Port Protection Switch Battery Disconnect Switch General Power Supply Switch 19-100538 Rev 4 3/21MAX20333 Adjustable Current-Limit Switch with Low-Power Mode Simplified Block Diagram MAX20333MAX20333 IN OUT PG PBT/NVP CONTROL EN/EN SETI FLAG www.maximintegrated.com Maxim Integrated 2