MAX667 19-3894 Rev 4 9/08 +5V/Programmable Low-Dropout Voltage Regulator General Description Features The MAX667 low-dropout, positive, linear voltage regu- 350mV Max Dropout at 200mA lator supplies up to 250mA of output current. With no 250mA Output Current load, it has a typical quiescent current of 20A. At 200mA of output current, the input/output voltage differ- Normal Mode: 20A Typ Quiescent Current ential is typically 150mV. Other features include a low- Shutdown Mode: 0.2A Typ Quiescent Current voltage detector to indicate power failure, as well as early-warning and low-dropout detectors to indicate an Low-Battery Detector imminent loss of output voltage regulation. A shutdown Fixed +5V (Min Component Count) or control disables the output and puts the circuit into a Adjustable Output low quiescent-current mode. +3.5V to +16.5V Input The MAX667 employs Dual Mode operation. One mode uses internally trimmed feedback resistors to pro- Dropout Detector Output duce +5V. In the other mode, the output may be varied 10F Output Capacitor from +1.3V to +16V by connecting two external resistors. The MAX667 is a pin-compatible upgrade to the MAX666 in most applications where the input voltages Ordering Information are above +3.5V. Choose the MAX667 when high out- put currents and/or low dropout voltages are desired, PART TEMP RANGE PIN-PACKAGE as well as for improved performance at higher MAX667CPA 0C to +70C 8 Plastic DIP temperatures. MAX667CSA 0C to +70C 8 SO Dice* Applications MAX667C/D 0C to +70C MAX667EPA -40C to +85C 8 Plastic DIP Battery-Powered Devices MAX667ESA -40C to +85C 8 SO Pagers and Radio Control Receivers MAX667MJA -55C to +125C 8 CERDIP** Portable Instruments MAX667MSA/PR -55C to +125C 8 SO Solar-Powered Instruments MAX667MSA/PR-T -55C to +125C 8 SO *Contact factory for dice specifications. **Contact factory for availability and processing to MIL-STD-883. Contact factory for availability. Pin Configuration Typical Operating Circuit TOP VIEW IN OUT +5V OUT C1 +6.3V 10F BATTERY 1 8 DD IN MAX667 2 7 OUT LBO MAX667 3 6 SET LBI 4 5 SHDN GND SET GND SHDN DIP/SO TM Dual Mode is a trademark of Maxim Integrated Products. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.+5V/Programmable Low-Dropout Voltage Regulator ABSOLUTE MAXIMUM RATINGS Input Supply Voltage ...........................................................+18V SO (derate 5.88mW/C above +70C).........................471mW Output Short Circuited to Ground.........................................1sec CERDIP (derate 8.00mW/C above +70C).................640mW LBO Output Sink Current ....................................................50mA Operating Temperature Ranges LBO Output Voltage ...............................................GND to V MAX667C A........................................................0C to +70C OUT SHDN Input Voltage ....................................-0.3V to (V + 0.3V) MAX667E A.....................................................-40C to +85C IN Input Voltages LBI, SET................................-0.3V to (V - 1.0V) MAX667MJA ..................................................-55C to +125C IN Continuous Power Dissipation Storage Temperature Range .............................-65C to +160C Plastic DIP (derate 9.09mW/C above +70C) ............727mW Lead Temperature (soldering, 10sec) .............................+300C 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 (GND = 0V, V = +9V, V = +5V, C1 = 10F, unless otherwise noted.) IN OUT T = +25C T = T to T A A MIN MAX PARAMETER SYMBOL CONDITIONS UNITS MIN TYP MAX MIN TYP MAX Input Voltage V 3.5 16.5 V IN V = 0V, V = 6V, I = 10mA, SET IN OUT 5 4.8 5.2 T = -40C to +85C A Output Voltage V V OUT V = 0V, V = 6V, I = 10mA, SET IN OUT 5 4.75 5.25 T = -55C to +125C A Maximum Output Current I V = 6V, 4.5V < V < 5.5V 250 250 mA IN OUT OUT V = 2V 0.2 1 2 SHDN I = 0A 20 25 35 A OUT Quiescent Current I V = 0V, Q SHDN I = 100A 20 30 50 OUT V = 0V SET I = 200mA 515 20 mA OUT I = 100A 560 75 OUT Dropout Voltage (Note1) mV I = 200mA 150 250 350 OUT Load Regulation I = 10mA to 200mA 50 100 250 mV OUT Line Regulation V = 6V to 10V, I = 10mA 510 15 mV IN OUT SET Reference Voltage V 1.225 1.20 1.25 V SET SET Input Leakage Current I V = 1.5V 0.01 10 1000 nA SET SET Output Leakage Current I V = 2V 0.1 1 A SHDN OUT Short-Circuit Current I (Note 2) 400 450 mA OUT Low-Battery Detector V 1.225 1.195 1.255 V LBI Reference Voltage Low-Battery Detector I V = 1.5V 0.01 10 1000 nA LBI LBI Input Leakage Current Low-Battery Detector V V = 9V, V = 2V, I = 10mA 0.25 0.4 V LBO IN LBI LBO Output Voltage V 1.5 1.5 IH SHDN Threshold V V SHDN V 0.3 0.3 IL SHDN Leakage Current I V = 0V to V 0.01 10 1000 nA SHDN SHDN IN V = 0V, SET V = 7V 0.25 IN Dropout Detector Output V = 0V, SHDN V V DD Voltage R = 100k, DD V = 4.5V 3.5 IN I = 10mA OUT Note 1: Dropout Voltage is V -V when V falls to 0.1V below its value at V = V + 2V. IN OUT OUT IN OUT Note 2: Short-Circuit Current is pulse tested to maintain junction temperature. Short-circuit duration is limited by package dissipation. 2 MAX667