Datasheet MAX16956 (Maxim) - 4

MAX16956 36V, 300mA, Mini Buck Converter with 1.1µA IQ
Typical Operating Characteristics
(VSUP = VEN = 14V, TA = +25°C, unless otherwise noted.)
3.3V EFFICIENCY vs. LOAD 5V EFFICIENCY vs. LOAD 3.3V EFFICIENCY vs. LOAD CURRENT CURRENT—SKIP MODE (1μA to 300μA) CURRENT—SKIP MODE (1μA to 300μA)
100 100 100 90 90 90 SKIP 80 80 MAX16956 toc03 MAX16956 toc01 80 MAX16956 toc02 70 70 70 PWM 60 60 60 50 50 50 40 40 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 30 30 20 20 20 10 10 10 0 0 0 0 0.0001 0.0002 0.0003 0 0.0001 0.0002 0.0003 0.000001 0.0001 0.01 1 0.00005 0.00015 0.00025 0.00005 0.00015 0.00025 0.00001 0.001 0.1 IOUT1 (A) IOUT1 (A) IOUT1 (A)
3.3V FIXED-OUTPUT STARTUP 5V EFFICIENCY vs. LOAD CURRENT WAVEFORM (PWM, 300mA LOAD)
100 MAX16956 toc05 90 SKIP VSUP 10V/div 80 MAX16956 toc04 70 PWM VOUT 2V/div 60 50 40 V EFFICIENCY (%) RESET 30 5V/div 20 10 VLX 10V/div 0 0.000001 0.0001 0.01 1 2ms/div 0.00001 0.001 0.1 IOUT1 (A)
5V FIXED-OUTPUT STARTUP NO-LOAD SUPPLY CURRENT WAVEFORMS (SKIP, 300mA LOAD) vs. TEMPERATURE (SKIP MODE)
MAX16956 toc06 3.0 VSUP V 10V/div OUT = 3.3V 2.5 MAX16956 toc07 VOUT 2.0 5V/div 1.5 VRESET 5V/div 1.0 NO-LOAD SUPPLY CURRENT (μA) 0.5 VLX 10V/div 0 2ms/div -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) www.maximintegrated.com Maxim Integrated │ 4