AME, Inc. AME1300 n General Description 300mA CMOS LDO with RESET Function n Applications l l l l l l The AME1300 combines a Low Dropout Regulator and a Microprocessor Reset Monitor in a space-saving 8-Pin MSOP package. Total supply current is 50µA(typical),20 to 60 times lower than in bipolar regulators . The AME1300 has an extremely precise output with a typical accuracy of ±1.5%. Other key features include ultra low noise operation, very low dropout voltage and internal feed-forward compensation for fast response to step changes in load. The AME1300 incorporates both over-temperature and over-current protection. When the shutdown control EN is low, the regulator output voltage falls to zero,RESET output remains valid and supply current is reduced to 10µA(typical). The AME1300 is stable with an output capacitor of only 2.2µF and has a minimum output current of 300 mA. n Typical Applications RESET VOUT VDET VIN 1300 VIN NC Bypass SHUTDOWN CONTROL EN CBypass (Option) n Pin Configuration MSOP-8 Top View 8 7 6 5 1300 Xyww l Noise Reduction Bypass Capacitor l Power-Saving Shutdown Mode l Space-Saving MSOP Package l Factory Pre-set Output Voltages l Low Temperature Coefficient VDET VOUT GND 470pF l LDO with intergrated Microprocessor Reset Monitor Functionality l Guaranteed 300mA Output l Accurate to within 1.5% l 50µA Quiescent Current l Over-Temperature Shutdown l Current Limiting l Short Circuit Current Fold-back RESET VDET and VOUT can be connected together An active low RESET is asserted when the detected voltage ( VDET) falls below the reset voltage threshold. The reset output remains low for 300msec(typical) after VDET rises above reset threshold. The AME1300 also has a fast wake up response time (10µsec typically) when released from shutdown. n Features Instrumentation Portable Electronics Wireless Devices Cellular / GSM / CDMA Phones PC Peripherals Battery Powered Widgets 1 2 3 1. 2. 3. 4. 5. 6. 7. 8. RESET VOUT GND Bypass EN NC VIN VDET 4 Note: X represents the regulator output voltage. yww represents the date code. Please contact AME for details 1 AME, Inc. 300mA CMOS LDO with RESET Function AME1300 n Ordering Information AME1300 xEQA xxx Voltage 270: V=2.7V 280: V=2.8V 285: V=2.85V 300: V=3.0V Voltage Symbol H: 2.7V C: 2.8V J: 2.85V B: 3.0V Part Number Marking Output Voltage Package Operating Temp. Range AME1300HEQA270 1300 Hyww 2.7V MSOP-8 - 40oC to + 85oC AME1300CEQA280 1300 Cyww 2.8V MSOP-8 - 40oC to + 85oC AME1300JEQA285 1300 Jyww 2.85V MSOP-8 - 40oC to + 85oC AME1300BEQA300 1300 Byww 3.0V MSOP-8 - 40oC to + 85oC Please consult AME sales office or authorized Rep./Distributor for other voltage accuracy and package type availability. 2 AME, Inc. 300mA CMOS LDO with RESET Function AME1300 n Absolute Maximum Ratings Parameter Maximum Unit 7 V Output Current PD / (VIN - VO) mA Output Voltage GND - 0.3 to VIN + 0.3 V Input Voltage ESD Classification B Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device n Recommended Operating Conditions Parameter Ambient Temperature Range Junction Temperature Rating Unit - 40 to + 85 o C - 40 to + 125 o C n Thermal Information Parameter Maximum Unit Thermal Resistance (θjc ) MSOP-8 39 o Thermal Resistance (θja) MSOP-8 206 o C/W C/W Maximum Junction Temperature 150 o Maximum Lead Temperature (10 Sec) 300 o C C 3 AME, Inc. 300mA CMOS LDO with RESET Function AME1300 n Electrical Specifications TA= 250C unless otherwise noted, VIN=VO(NOM)+1V, IO=1mA, VEN=VIN, Parameter Input Voltage VIN Output Voltage Accuracy VO Dropout Voltage Test Condition IO=1mA VDROPOUT VO=VO(NOM) -2.0% Min Typ Max Units Note 1 6 V -1.5 1.5 % IO=0.1mA 1 30 IO=100mA 70 130 300mA 210 390 mV IO V O>1.2V 600 Current Limit ILIM V O>1.2V 600 Short Circuit Current ISC VO=0V 300 600 mA Quiescent Current IQ IO=0mA 40 50 µA Ground Pin Current IGND IO=1mA to 300mA 40 Output Current Line Regulation Load Regulation Over Temerature Shutdown REGLINE REGLOAD mA 800 mA µA IO=1mA 2.0V<= VO < 4.0V -0.1 0.02 0.1 % VIN =V O+1 to VO+2 4.0V <= Vo -0.4 0.2 0.4 % -1 0.2 1 % IO=1mA to 300mA OTS 150 o C o C Over Temerature Hysterisis OTH 30 V O Temperature Coefficient TC 30 ppm/ oC f=1kHz 50 dB Co=2.2µF 30 µVrms Power Supply Rejection Output Voltage Noise PSRR eN IO=100mA CO=2.2µF f=10Hz to 100kHz IO=10mA V EH V IN =5V 2.0 Vin V VEL V IN =5V 0 0.4 V IEH V EN =VIN , VIN =5V 0.5 µA IEL VEN =0V, VIN =5V 0.1 µA Shutdown Supply Current ISD VIN =5V, VO=0V, VEN =0 10 µA Shutdown Output Voltage VO,SD IO=0.4mA, VEN =0 0.4 V EN Input Threshold EN Input Bias Current Note1:VIN(min)=VOUT+VDROPOUT 4 Symbol 0 AME, Inc. 300mA CMOS LDO with RESET Function AME1300 n Electrical Specifications(contd.) RESET Output Parameter VDET Range Reset Threshold Symbol Test Condition Min VDET TA=-40~85oC 1 TA=25oC 2.59 Typ 2.63 Max Units 5.5 V 2.67 VTH V o TA=-40~85 C 2.58 RESET Threshold Tempco 2.68 30 ISINK=1.2mA, RESETB Output Voltage Low VOL V DET<VTH min RESETB Output Voltage High VOH VDET>VTH max VDET to Reset Delay TD1 VDET= VTH - 100mV, TA= -40 ~ 85oC Reset Active Timeout Period* TD2 TA= -40 ~ 85oC TA= -40~85oC ISOURCE=0.5mA, TA= -40~85oC ppm 0.5 V 0.8VDET µS 40 140 V 210 500 mS 5 AME, Inc. 300mA CMOS LDO with RESET Function AME1300 n Detailed Description The AME1300 is a combination of a fixed output, low drop-out regulator and microprocessor monitor. Unlike bipolar regulators, the AME1300 supply current does not increase with load current. In addition,VOUT remains stable and within regulation at very low load currents(an important consideration in RTC and CMOS RAM battery backup applications) as well as with any type of capacitor (see below). AME1300 pin functions are detailed below: RESET RESET C1 2.2µF VDET VIN VOUT GND 1300 Bypass CBypass (Option) 470pF n Pin Description 6 Pin # Pin Name 1 RESET 2 VOUT Regulated Voltage Output. 3 GND Ground Terminal. 4 Bypass NC VDET C1 1µF + Battery EN EN Control (from Power Control Logic) Pin Description RESET output remains low while VDET is below the reset voltage threshold, and for 300msec VDET rises above reset theshold. Reference Bypass Input. Connecting a 1000pF to this input further reduces output noise. 5 EN Shutdown Control Input. The regulator is fully enabled when a logic high is applied to this input. The regulator enters shutdown when a logic low is applied to this input. During shutdown, regulator output voltage falls to zero, RESET output remains valid and supply current is reduced to 10µA (typ.) 6 NC No connect. 7 VIN Power Supply Input. 8 VDET Detected input Voltage. VDET and VOUT can be connected together. AME, Inc. AME1300 300mA CMOS LDO with RESET Function n Enable When actively pulled low, the PMOS pass transistor shuts off, and all internal circuits are powered down. In this state, the quiescent current is less than 10µA. This pin behaves much like an electronic switch. RESET Output The RESET output is driven active low within 40µsec of VDET falling through the reset threshold.RESET is maintained active for a minimum of 140msec after VDET rises above the reset threshold. The AME1300 has an activelow RESET output. The output of the AME1300 is guaranteed vaild down to VDET = 1V and is optimized to reject fast transient glitches on the VDET line. n External Capacitors The AME1300 is stable with an output capacitor to ground of 2.2µF or greater. Ceramic capacitors have the lowest ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR, resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are comparatively expensive. One option is to parallel a 0.1µF ceramic capacitor with a 10µF Aluminum Electrolytic. The benefit is low ESR, high capacitance, and low overall cost. A second capacitor is recommended between the input and ground to stabilize Vin. The input capacitor should be at least 0.1µF to have a beneficial effect. A third capacitor can be connected between the BYPASS pin and GND. This capacitor can be a low cost Polyester Film variety between the value of 0.001~0.01µF. A larger capacitor improves the AC ripple re-jection,but also makes the output come slowly. This “Soft” turn-on is desirable in some applications to limit turn-on surges. All capacitors should be placed in close proximity to the pins. A “Quiet” ground termination is desirable. This can be achieved with a “Star” connection. 7 AME, Inc. 300mA CMOS LDO with RESET Function AME1300 Reset VOLt VS. Temperature Reset Time VS. Temperature 0.265 220 215 0.255 0.250 Reset Time (mS) Reset VOL @ 0.8mA (V) 0.260 0.245 0.240 0.235 0.230 210 205 200 195 0.225 0.220 -45 -5 25 55 85 190 -45 115 -5 Temperature ( oC) Reset Vth VS. Temperature Dropout Voltage @ 300mA (mV) 2.646 2.644 Reset Vth (V) 85 115 230 2.648 2.642 2.640 2.638 Vth=2.63V 2.636 2.634 2.632 2.630 -45 -5 25 55 85 115 Temperature (oC) Load Regulation VS. Temp. 0.50 0.45 0.40 0.35 0.30 -20 0 20 40 Temperature ( oC) 220 210 200 Vout=3.0V 190 180 170 160 150 -45 -5 25 55 Temperature (oC) 0.55 Load Regulation (%) 55 Dropout Voltage VS. Temp. 2.650 8 25 Temperature ( oC) 60 80 85 115 AME, Inc. 300mA CMOS LDO with RESET Function AME1300 n Package Dimension MSOP-8 SYMBOLS u MILLIMETERS INCHES MIN MAX MIN MAX A - 1.07 - 0.042 A1 0.05 0.20 0.002 0.006 A2 0.81 0.91 0.03 0.036 b 0.28 0.38 0.011 0.015 b1 0.03 0.33 0.011 0.013 c 0.14 0.23 0.0055 0.009 c1 0.14 0.17 0.006 0.0065 D 2.90 3.10 0.114 0.12 E 4.78 4.98 0.188 0.196 E1 2.90 3.10 0.114 0.122 e 0.65 TYP 0.0255 TYP e1 1.95 TYP 0.0767 TYP L 0.406 0.686 L1 0.94 REF L2 0.254 TYP è 0 o 8 0.016 0.027 0.037 REF 0.010 TYP o 0o 8o NOTE: 1. Controlling dimension : Millimeter, converted inchdimension are not necessarily exact. 2. Dimensiioning and tolerancing per ansi Y14.5m-1994. 3. Dimension "d" does not include mold flash,protrusion or gate burr, mold flash,protrusion and gate burr shall not exceed 0.15mm(0.006") per side. Dimension e1 do not include inter-lead flash or protrusion, inter-lead flash and protrusion shall not exceed 0.15mm(0.006") per side. 4. The package top be smaller than the package bottom. Dimension d and e1 are determined at outermost extremes of the plastic body exclusive of mold flash, tie bar burrs, gate burrs and interlead flash, but including any mismatch between the top and bottom of the plastic body. 5. Dimension 'b' does not include dambar protrusion. Allowable dambar protrusion shall be 0.08mm(0.0031) total in excess of the "b" dimension at maximum material condition. 9 AME, Inc. 300mA CMOS LDO with RESET Function AME1300 n Tape and Reel Diagram PIN 1 W P Carrier Tape, Number of Components Per Reel and Reel Size 10 Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size MSOP-8L 12mm 9.1mm 4000 13in www.ame.com.tw E-Mail: [email protected] Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. AME, Inc. , May 2003 Document: 2006&7-DS1300-B Corporate Headquarter U.S.A.(Subsidiary) AME, Inc. Analog Microelectronics, Inc. 2F, 189 Kang-Chien Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. 3100 De La Cruz Blvd. Suite 201 Santa Clara, CA. 95054-2046 Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 Tel : (408) 988-2388 Fax: (408) 988-2489