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| AME, Inc. AME1300 300mA CMOS LDO with RESET Function n General Description The AME1300 combines a Low Dropout Regulator and a Microprocessor Reset Monitor in a space-saving 8-Pin MSOP package. Total supply current is 50A(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 10A(typical). The AME1300 is stable with an output capacitor of only 2.2F and has a minimum output current of 300 mA. 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 (10sec typically) when released from shutdown. n Applications l l l l l l Instrumentation Portable Electronics Wireless Devices Cellular / GSM / CDMA Phones PC Peripherals Battery Powered Widgets n Typical Applications RESET RESET VDET VDET VDET and VOUT can be connected together VOUT VOUT VIN VIN GND 1300 NC Bypass EN SHUTDOWN CONTROL 470pF n Features l LDO with intergrated Microprocessor Reset Monitor Functionality l Guaranteed 300mA Output l Accurate to within 1.5% l 50A Quiescent Current l Over-Temperature Shutdown l Current Limiting l Short Circuit Current Fold-back 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 CBypass (Option) n Pin Configuration MSOP-8 Top View 8 7 6 5 1300 Xyww 1. 2. 3. 4. 5. 6. 7. 8. RESET VOUT GND Bypass EN NC VIN VDET 1 2 3 4 Note: X represents the regulator output voltage. yww represents the date code. Please contact AME for details 1 AME, Inc. AME1300 300mA CMOS LDO with RESET Function 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 AME1300HEQA270 Marking 1300 Hyww 1300 Cyww 1300 Jyww 1300 Byww Output Voltage 2.7V Package MSOP-8 Operating Temp. Range - 40oC to + 85oC AME1300CEQA280 2.8V MSOP-8 - 40oC to + 85oC AME1300JEQA285 2.85V MSOP-8 - 40oC to + 85oC AME1300BEQA300 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. AME1300 300mA CMOS LDO with RESET Function n Absolute Maximum Ratings Parameter Input Voltage Output Current Output Voltage ESD Classification Maximum 7 PD / (VIN - VO) GND - 0.3 to VIN + 0.3 B Unit V mA V 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 - 40 to + 85 - 40 to + 125 Unit o C C o n Thermal Information Parameter Thermal Resistance (jc ) Thermal Resistance (ja) Maximum Junction Temperature Maximum Lead Temperature (10 Sec) MSOP-8 MSOP-8 Maximum 39 206 150 300 Unit o C/W C/W o o C C o 3 AME, Inc. AME1300 300mA CMOS LDO with RESET Function n Electrical Specifications TA= 250C unless otherwise noted, VIN=VO(NOM)+1V, IO=1mA, VEN=VIN, Parameter Input Voltage Output Voltage Accuracy Symbol VIN VO IO=1mA IO=0.1mA Dropout Voltage VDROPOUT VO=VO(NOM) -2.0% IO=100mA 300mA Output Current Current Limit Short Circuit Current Quiescent Current Ground Pin Current Line Regulation Load Regulation Over Temerature Shutdown Over Temerature Hysterisis V O Temperature Coefficient Power Supply Rejection IO ILIM ISC IQ IGND REGLINE REGLOAD OTS OTH TC PSRR IO=100mA CO=2.2F f=10Hz to 100kHz IO=10mA V IN =5V V IN =5V V EN =VIN , VIN =5V VEN =0V, VIN =5V VIN =5V, VO=0V, VEN =0 IO=0.4mA, VEN =0 0 f=1kHz V O>1.2V V O>1.2V VO=0V IO=0mA IO=1mA to 300mA IO=1mA VIN =V O+1 to VO+2 2.0V<= VO < 4.0V 4.0V <= Vo -0.1 -0.4 -1 600 600 800 300 40 40 0.02 0.2 0.2 150 30 30 50 0.1 0.4 1 600 50 Test Condition Min Note 1 -1.5 1 70 210 Typ Max 6 1.5 30 130 390 mA mA mA A A % % % o o Units V % mV IO=1mA to 300mA C C ppm/ oC dB Output Voltage Noise eN V EH VEL Co=2.2F 2.0 0 30 Vin 0.4 0.5 0.1 10 0.4 Vrms V V A A A V EN Input Threshold EN Input Bias Current Shutdown Supply Current Shutdown Output Voltage IEH IEL ISD VO,SD Note1:VIN(min)=VOUT+VDROPOUT 4 AME, Inc. AME1300 300mA CMOS LDO with RESET Function n Electrical Specifications(contd.) RESET Output Parameter VDET Range Symbol VDET Test Condition TA=-40~85oC TA=25oC Reset Threshold VTH TA=-40~85 C RESET Threshold Tempco RESETB Output Voltage Low RESETB Output Voltage High VDET to Reset Delay Reset Active Timeout Period* VOL VOH TD1 TD2 V DET o Min 1 2.59 2.58 Typ Max 5.5 Units V 2.63 2.67 V 2.68 30 0.5 0.8VDET 40 140 210 500 ppm V V S mS VDET= VTH - 100mV, TA= -40 ~ 85oC TA= -40 ~ 85oC 5 AME, Inc. AME1300 300mA CMOS LDO with RESET Function 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 VDET VDET C1 2.2F VOUT VIN C1 1F Battery GND 1300 + NC Bypass EN n Pin Description Pin # 1 2 3 4 CBypass (Option) 470pF EN Control (from Power Control Logic) Pin Name RESET VOUT GND Bypass Pin Description RESET output remains low while VDET is below the reset voltage threshold, and for 300msec VDET rises above reset theshold. Regulated Voltage Output. Ground Terminal. Reference Bypass Input. Connecting a 1000pF to this input further reduces output noise. 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 10A (typ.) No connect. Power Supply Input. Detected input Voltage. VDET and VOUT can be connected together. 5 EN 6 7 8 NC VIN VDET 6 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 10A. This pin behaves much like an electronic switch. RESET Output The RESET output is driven active low within 40sec 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 2.2F 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 0.1F ceramic capacitor with a 10F 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 0.1F 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 0.001~0.01F. 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. AME1300 Reset VOLt VS. Temperature 0.265 0.260 220 300mA CMOS LDO with RESET Function Reset Time VS. Temperature Reset VOL @ 0.8mA (V) 0.255 215 Reset Time (mS) -5 25 55 85 115 0.250 0.245 0.240 0.235 0.230 0.225 0.220 -45 210 205 200 195 190 -45 -5 25 55 85 115 Temperature ( oC) Temperature ( oC) Reset Vth VS. Temperature 2.650 2.648 2.646 2.644 230 Dropout Voltage VS. Temp. Dropout Voltage @ 300mA (mV) 220 210 200 Reset Vth (V) 2.642 2.640 2.638 2.636 2.634 2.632 2.630 -45 -5 25 55 85 115 Vout=3.0V 190 180 170 160 150 -45 Vth=2.63V -5 25 55 85 115 Temperature (oC) Temperature (oC) Load Regulation VS. Temp. 0.55 Load Regulation (%) 0.50 0.45 0.40 0.35 0.30 -20 0 20 40 60 80 Temperature ( oC) 8 AME, Inc. AME1300 300mA CMOS LDO with RESET Function n Package Dimension MSOP-8 SYMBOLS A A1 A2 u MILLIMETERS MIN 0.05 0.81 0.28 0.03 0.14 0.14 2.90 4.78 2.90 INCHES MIN 0.002 0.03 0.011 0.011 0.0055 0.006 0.114 0.188 0.114 MAX 1.07 0.20 0.91 0.38 0.33 0.23 0.17 3.10 4.98 3.10 MAX 0.042 0.006 0.036 0.015 0.013 0.009 0.0065 0.12 0.196 0.122 b b1 c c1 D E E1 e e1 L L1 L2 0.65 TYP 1.95 TYP 0.406 0.686 0.0255 TYP 0.0767 TYP 0.016 0.027 0.94 REF 0.254 TYP 0 o 0.037 REF 0.010 TYP o e 8 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. AME1300 300mA CMOS LDO with RESET Function n Tape and Reel Diagram PIN 1 W P Carrier Tape, Number of Components Per Reel and Reel Size Package MSOP-8L Carrier Width (W) 12mm Pitch (P) 9.1mm Part Per Full Reel 4000 Reel Size 13in 10 www.ame.com.tw E-Mail: sales@ame.com.tw 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. (c) AME, Inc. , May 2003 Document: 2006&7-DS1300-B Corporate Headquarter AME, Inc. 2F, 189 Kang-Chien Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 U.S.A.(Subsidiary) Analog Microelectronics, Inc. 3100 De La Cruz Blvd. Suite 201 Santa Clara, CA. 95054-2046 Tel : (408) 988-2388 Fax: (408) 988-2489 |
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