MAX882 Maxim Integrated Products, MAX882 Datasheet
MAX882
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MAX882 Summary of contents
Page 1
... PNP transistors go into saturation. Typical dropout voltages are 220mV at 5V and 200mA, or 320mV at 3.3V and 200mA. The MAX882 features a 7µA standby mode that disables the output but keeps the reference, low-battery compara- tor, and biasing circuitry alive. The MAX883/MAX884 fea- ture a shutdown (OFF) mode that turns off all circuitry, reducing supply current to less than 1µ ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS ( (MAX883 4.3V (MAX882/MAX884 unless otherwise noted. Typical values are at T PARAMETER ...
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... Adjustable, Low-Dropout, ELECTRICAL CHARACTERISTICS (continued (MAX883 4.3V (MAX882/MAX884 unless otherwise noted. Typical values are at T PARAMETER SYMBOL STBY Quiescent Current I Q STBY (Note 4) OFF Quiescent Current I Q OFF Minimum Load Current I OUT(MIN) Foldback Current Limit (Note 5) I Thermal Shutdown Temperature T ∆ ...
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... Adjustable, Low-Dropout, Low I , 200mA Linear Regulators Q ELECTRICAL CHARACTERISTICS (continued (MAX883 4.3V (MAX882/MAX884 unless otherwise noted. Typical values are at T PARAMETER SYMBOL STBY Threshold Voltage V STBY ∆V STBY Hysteresis STBY STBY Input Leakage Current I STBY V IL OFF OFF Threshold Voltage V IH OFF ...
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... Adjustable, Low-Dropout for MAX883 5.3V for MAX882/MAX884, OFF or STBY = 1kΩ +25°C, unless otherwise noted OUTPUT VOLTAGE AND QUIESCENT CURRENT vs. LOAD CURRENT 101 100 (MAX883) OUT 3.3V (MAX882/MAX884) OUT OUTPUT VOLTAGE 96 NORMALIZED TO OUTPUT VOLTAGE AT 1mA 95 0.01 0 100 LOAD CURRENT (mA) OUTPUT VOLTAGE AND QUIESCENT CURRENT vs ...
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... Adjustable, Low-Dropout, Low I , 200mA Linear Regulators for MAX883 5.3V for MAX882/MAX884, OFF or STBY = 1kΩ +25°C, unless otherwise noted LINE-TRANSIENT RESPONSE 500µs/div MAX883 5V 0µ 15µs, t OUT (HIGH (LOW OUTPUT VOLTAGE (100mV/div) OVERSHOOT AND TIME EXITING SHUTDOWN MODE R = 100Ω ...
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... The MAX882/MAX883/MAX884 feature Dual Mode operation. In preset voltage mode, the MAX883’s out- put is set to 5V and the MAX882/MAX884’s output is set to 3.3V, using internal trimmed feedback resistors. Select this mode by connecting SET to ground. In preset voltage mode, impedances between SET and ground should be less than 100kΩ ...
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... ERROR AMP 1.20V DUAL-MODE COMPARATOR The MAX882 has a standby feature that disconnects the input from the output when STBY is brought low, but keeps all other circuitry awake. In this mode, V drops to 0, and the internal biasing circuitry (including the low-battery comparator) remains on. The maximum ...
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... The power dissipation across the device OUT is as follows: where (T the MAX882/MAX883/MAX884 die junction and the sur- rounding air, θ the package chosen, and θ through the PC board, copper traces, and other materi- als to the surrounding air. The 8-pin small-outline package for the MAX882/ ...
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... COPPER GROUND PAD AREA Figure 4. Typical Maximum Power Dissipation vs. Ground Pad Area The GND pins of the MAX882/MAX883/MAX884 SOIC package perform the dual function of providing an elect- rical connection to ground and channeling heat away. Con- nect all GND pins to ground using a large pad or ground plane ...
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... LBI is below 1.20V. Hysteresis of 7mV has been added to the low-battery comparator to provide noise immunity during switching. LBO remains functional in stand- by mode for the MAX882, but is undefined in OFF mode for the MAX883 and MAX884. Tie LBI to IN when not used. Use a resistor-divider network as shown in Figure 6 to set the low-battery trip voltage. Current into the LBI input is ± ...
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... Input Bypass Capacitor Normally, use 0.1µF to 10µF capacitors on the MAX882/ MAX883/MAX884 input. The best value depends pri- marily on the power-up slew rate of V and line transients. Larger input capacitor values pro- ...
Page 13
... This application is limited to short-term battery backup for 3.3V circuits. The current drawn by the MAX882’s OUT pin at 3.3V during reverse-current protection is typically 8µA. It should not be used with the MAX883 and MAX884, since the OFF pin is a logic input, and indeterminate inputs can cause the regulator to turn on intermittently, draining the battery ...
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... SO Dice* 8 Plastic DIP SET CERDIP** 8 Plastic DIP OUT 8 SO Dice* 8 Plastic DIP CERDIP** TRANSISTOR COUNT: 151 NO DIRECT SUBSTRATE CONNECTION. THE N-SUB- STRATE IS INTERNALLY SWITCHED BETWEEN THE MORE POSITIVE OUT. GND LBI OFF (MAX883/4) STBY (MAX882) 0.085" (2.159mm) IN OUT 0.080" (2.032mm) ...
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Adjustable, Low-Dropout, ________________________________________________________Package Information ______________________________________________________________________________________ Low I , 200mA Linear Regulators Q 15 ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...