Electronic Components Datasheet Search |
|
MAX668EUB Datasheet(PDF) 2 Page - Maxim Integrated Products |
|
MAX668EUB Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 18 page 1.8V to 28V Input, PWM Step-Up Controllers in µMAX 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VCC = VLDO = +5V, ROSC = 200kΩ, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) VCC to GND ..........................................................-0.3V to +30V PGND to GND....................................................................±0.3V SYNC/SHDN to GND .............................................-0.3V to +30V EXT, REF to GND.....................................-0.3V to (VLDO + 0.3V) LDO, FREQ, FB, CS+ to GND ................................ -0.3V to +6V LDO Output Current...........................................-1mA to +20mA REF Output Current..............................................-1mA to +1mA LDO Short Circuit to GND .........................................Momentary REF Short Circuit to GND ..........................................Continuous Continuous Power Dissipation (TA = +70°C) 10-Pin µMAX (derate 5.6mW/°C above +70°C) ............444mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering,10sec) ..............................+300°C Soldering Temperature (Reflow) ......................................+300°C Lead(Pb)-Free Packages..............................................+260°C Packages Containing Lead(Pb)....................................+240°C 85 100 115 425 500 575 225 250 275 ROSC = 200kΩ ±1% Oscillator Frequency Oscillator 1.0 1.1 1.2 Rising edge, 1% hysteresis REF Undervoltage Lockout Threshold -2 -10 REF load = 0 to 50µA REF Load Regulation 1.225 1.250 1.275 No load, CREF = 0.22µF REF Output Voltage 2.40 2.50 2.60 Sensed at LDO, falling edge, hysteresis = 1%, MAX668 only Undervoltage Lockout Threshold 2.65 5.50 3V ≤ VCC ≤ 28V (includes LDO dropout) 4.50 5.00 5.50 LDO Output Voltage Reference and LDO Regulators 328 MAX668 PWM Controller Input Voltage Range, VCC 3.5 6 SYNC/SHDN = GND, VCC = 28V Shutdown Supply Current (VCC) 220 350 VFB = 1.30V, VCC = 3V to 28V VCC Supply Current (Note 1) 0.2 1 CS+ forced to GND CS+ Input Current 515 25 Idle Mode Current-Sense Threshold 2.7 5.5 Input Voltage Range with VCC Tied to LDO 1.225 1.250 1.275 FB Threshold 1 20 VFB = 1.30V FB Input Current 85 100 115 Current Limit Threshold MIN TYP MAX CONDITIONS PARAMETER kHz V mV V V V µA µA µA mV mV nA V V V UNITS MAX669 1.8 28 LDO load = ∞ to 400Ω 5V ≤ VCC ≤ 28V (includes LDO dropout) ROSC = 500kΩ ±1% ROSC = 100kΩ ±1% 0.013 Typically 0.013% per mV on CS+; VCS+ range is 0 to 100mV for 0 to full load current. FB Threshold Load Regulation %/mV 0.012 Typically 0.012% per % duty factor on EXT; EXT duty factor for a step-up is: 100% (1 – VIN/VOUT) FB Threshold Line Regulation %/% REFERENCE AND LDO REGULATORS OSCILLATOR PWM CONTROLLER |
Similar Part No. - MAX668EUB |
|
Similar Description - MAX668EUB |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |