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MAX889TESA Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX889TESA Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 8 page High-Frequency, Regulated, 200mA, Inverting Charge Pump 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = V SHDN = +5V, capacitors from Table 1, TA = 0 °C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. IN to GND .................................................................-0.3V to +6V FB, SHDN, CAP+ to GND ............................-0.3V to (VIN + 0.3V) AGND to GND .......................................................-0.3V to +0.3V OUT to GND .............................................................-6V to +0.3V CAP- to GND ............................................(VOUT - 0.3V) to +0.3V Continuous Output Current ...............................................250mA Output Short-Circuit Duration ........................................Indefinite Continuous Power Dissipation (TA = +70 °C) 8-Pin SO (derate 5.88mW/ °C above +70°C)...............471mW Operating Temperature Range...........................-40 °C to +85°C Junction Temperature ......................................................+150 °C Storage Temperature Range .............................-65 °C to +150°C Lead Temperature (soldering, 10s) ................................+300 °C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage Range VIN RLOAD = 100 Ω 2.7 5.5 V Output Voltage Range VOUT R LOAD = 100 Ω -2.5 -VIN V IOUT(MAX)1 VIN = 5V, VOUT = -3.3V 200 Maximum Output Current IOUT(MAX)2 VIN = 3.3V, VOUT = -2.5V 145 mA MAX889R 6 12 MAX889S 12 24 Quiescent Supply Current (Free-Run Mode) IQ(FREE-RUN) No load, VFB = VIN MAX889T 24 48 mA MAX889R 3.3 7 MAX889S 5.5 12 Quiescent Supply Current (Regulated Mode) IQ(REGULATED) No load, VOUT regulated to -3.3V MAX889T 11 22 mA Shutdown Supply Current I SHDN V SHDN = 0 0.1 50 µA Open-Loop Output Resistance (Free-Run Mode) RO VFB = VIN 2.0 4.5 Ω Output Resistance RO(REG1) VOUT regulated to -3.3V 0.05 Ω SHDN, FB Input Bias Current ±1 µA FB Input Offset Voltage ILOAD = 0 ±3 ±35 mV Load Regulation IOUT = 0 to 200mA 10 mV IN Undervoltage Lockout Threshold VIN rising (30mV hysteresis) 2.3 2.6 V SHDN Logic High VIH 0.7 x VIN SHDN Logic Low VIL VIN = +2.7V to +5.5V 0.3 x VIN V MAX889R 0.375 0.5 0.62 MAX889S 0.75 1 1.25 Switching Frequency fOSC MAX889T 1.5 2 2.5 MHz Thermal Shutdown Threshold Junction temperature rising (15 °C hysteresis) 160 °C |
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