MAX8869 1A, Microcap, Low-Dropout, Linear Regulator General Description Features The MAX8869 low-dropout linear regulator operates Guaranteed 1A Output Current from a +2.7V to +5.5V input and delivers a guaranteed Stable with C = 1F OUT 1A load current with a low 200mV dropout. The high- Low 200mV Dropout at 1A accuracy (1%) output voltage is preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V or is adjustable from +0.8V to 1% Output Voltage Accuracy +5V with an external resistor-divider. Preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V and Adjustable from +0.8V to +5.0V The MAX8869 uses Microcap technology and requires only a small 1F output capacitor for guaran- 54dB PSRR at 100kHz teed stability. An internal PMOS pass transistor allows Adjustable Soft-Start low 500A supply current, making this regulator useful 3ms Reset Output for networking and telecom hardware as well as bat- tery-operated equipment. Other features include soft- Foldback Output Current Limit start, low-power shutdown, short-circuit protection, and Thermal Overload Protection thermal shutdown protection. High-Power 16-Pin TSSOP Package (1.5W) The MAX8869 is available in a 1.5W, 16-pin TSSOP 30% Smaller than SOT223 (Only 1.1mm High) package, which is 30% smaller than a SOT223 and only Ordering Information 1.1mm high. PART PIN-PACKAGE V (V)* OUT MAX8869EUE50+ 16 TSSOP-EP** +5.0 Applications MAX8869EUE33+ 16 TSSOP-EP** +3.3 Telecom Hardware MAX8869EUE25+ 16 TSSOP-EP** +2.5 Network Equipment MAX8869EUE25/V+ 16 TSSOP-EP** +2.5 Mobile Phone Base Stations MAX8869EUE18+ 16 TSSOP-EP** +1.8 Personal Computers MAX8869EUE10+ 16 TSSOP-EP** +1.0 Note: All devices are specified over the -40C to +85C Notebook Computers temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. *Or adjustable from +0.8V to +5.0V. Contact factory for other preset output voltages. Microcap is a registered trademark of American Technical **EP = Exposed pad. Ceramics Corp. /V denotes an automotive qualified part. Pin Configuration Typical Operating Circuit TOP VIEW + N.C. 1 16 N.C. MAX8869 IN 2 15 OUT IN OUT V IN V OUT +2.7V TO +5.5V IN 3 14 OUT IN OUT UP TO 1A MAX8869 IN OUT IN 4 13 OUT 1F 1F IN OUT IN 5 12 OUT ON RESET OFF SHDN RST RST 6 11 SET OUTPUT SS SET SHDN 7 10 GND GND SS 8 9 N.C. TSSOP-EP For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com. 19-1692 Rev 2 10/12MAX8869 1A, Microcap, Low-Dropout, Linear Regulator ABSOLUTE MAXIMUM RATINGS IN, SHDN, RST, SS to GND......................................-0.3V to +6V Operating Temperature Range ...........................-40C to +85C Junction Temperature......................................................+150C OUT, SET to GND ........................................-0.3V to (V + 0.3V) IN Output Short-Circuit Duration ........................................Indefinite Storage Temperature Range ...............................-65C to 150C Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) A Soldering Temperature (reflow) .......................................+260C 16-Pin TSSOP-EP (derate 26.1mW/C above +70C)......2.0W 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. ELECTRICAL CHARACTERISTICS (V = +2.7V or V + 0.5V (whichever is greater), SHDN = IN, SS = open, SET = GND, C = 1F, T = 0C to +85C, IN OUT(NOM) OUT A unless otherwise noted. Typical values are at T = +25C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage Range V 2.7 5.5 V IN Input Undervoltage Lockout Typical hysteresis = 50mV 2.35 2.45 2.55 V Output Voltage Accuracy I = 1mA, T = +85C-1 1% OUT A SET Regulation Voltage I = 150mA, T = +85C 792 800 808 mV OUT A (Adjustable Mode) Line Regulation V V = V + 0.5V to +5.5V, I = 10mA 0.1 %/V LNR IN OUT OUT Load Regulation V I = 1mA to 1A 0.8 1.5 %/A LDR OUT Adj ustab l e Out p ut Vol ta g e Range 0.8 5 V Maximum Output Current I Continuous 1 A OUT RMS Short-Circuit Current Limit I V = 0V 1.0 1.9 A LIM OUT In-Regulation Current Limit I V = 0.76V 2.0 4.0 A LIM SET SET Dual Mode Threshold 40 80 120 mV SET Input Bias Current I V = +0.9V 50 300 nA SET SET I = 100A 0.5 2.0 OUT Ground Current I mA GND I = 1A 2.5 OUT I = 1mA, +2.7V < V < +5.5V 0.2 Dropout Voltage OUT IN mV (Note 1) I = 1A, V = +3.3V (Note 2) 200 350 OUT OUT Output Voltage Noise f = 10Hz to 1MHz , C = 1F, I = 150mA 150 V OUT OUT RMS Power-Supply Rejection Ratio PSRR f = 100kHz, C = 1F 54 dB OUT Shutdown Supply Current I SHDN = GND, V = +5.5V, V = 0 0.1 10 A OFF IN OUT V 1.6 IH SHDN Input Threshold +2.7V < V < +5.5V V IN V 0.6 IL SHDN Input Bias Current SHDN = GND or IN 0 0.1 A Soft-Start Charge Current I V = 0V 6 A SS SS RST Output Low Voltage I = 1mA 0.1 V SINK IN Operating Voltage Range for I = 10A 1.0 5.5 V SINK RST Valid RST Leakage V = +5.5V 0.01 1 A RST RST Trip Level Referred to Falling edge, typical hysteresis = 10mV 89 92 95 % OUT Nominal V OUT RST Release Delay Rising edge 1 3 5.5 ms o Thermal Shutdown Threshold T Typical thermal hysteresis = +20C +170 C SHDN Dual Mode is a trademark of Maxim Integrated Products. 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