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| AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n General Description The AME8833 family of positive, linear regulators feature low quiescent current (50A typ.) low dropout voltage and excellent PSRR, thus making them ideal for Telecommunications and other battery applications. The ultra-small SC-70 package is attractive for "Pocket" and "Hand Held" applications. AME8834's output voltage can be adjusted with an external resister divider. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" of operating conditions. As an additional feature, the AME8833/8834 is stable with an output capacitance of just extended 0.22F or greater. n Functional Block Diagram IN Overcurrent Shutdown OUT Thermal Shutdown SHDN R1 AMP + R2 Vref n Features l l l l l l l l l l l l l l Stable with only 0.22F output Cap Very Low Dropout Voltage Guaranteed 150mA Output Accurate to within 1.0% 50A Quiescent Current Over-Temperature Shutdown Current Limiting Short Circuit Current Fold-back Excellent PSRR (Typ. 70dB) Power-Saving Shutdown Mode Ultra-small SC-70 and SOT-25-L Package Factory Pre-set Output Voltages Low Temperature Coefficient Input Voltage Range (2V - 5.5V) GND n Typical Application IN SHDN IN OUT GND OUT AME8833 C2 0.22F C1 1F n Applications l l l l l l l l l l Cellular Phones Instrumentation Portable Electronics Wireless Devices Cordless Phones PC Peripherals Battery Powered Widgets Electronic Scales Cameras Telecommunications OUT IN SHDN IN OUT AME8834 GND R1 VREF R2 C1 C2 1 AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n Pin Configuration SC-70 Top View 5 4 SOT-25-L Top View AME 8833AEIV 1. VIN 2. GND 3. SHDN 4. NC 5. VOUT 5 4 AME8833 AME8833 AME 8833AEEV 1. VIN 2. GND 3. SHDN 4. NC 5. VOUT 1 2 3 1 2 3 SC-70 Top View 5 4 SOT-25-L Top View AME 8833BEIV 1. VOUT 2. 3. 4. 5. GND VIN SHDN NC 5 4 AME8833 AME8833 AME 8833BEEV 1. VOUT 2. GND 3. VIN 4. SHDN 5. NC 1 2 3 1 2 3 SC-70 Top View 5 4 SOT-25-L Top View AME 8834AEIV 1. VIN 2. GND 3. SHDN 4. ADJ 5. VOUT 5 4 AME8834 AME8834 AME 8834AEEV 1. VIN 2. GND 3. SHDN 4. ADJ 5. VOUT 1 2 3 1 2 3 2 AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n Ordering Information AME8833 x x x x x x Special Feature Voltage Number of Pins Package Type Operating Temperature Range Pin Configuration Pin Configuration Operating Temperature Range E: -40OC to 85OC Package Type Number of Pins V: 5 Voltage Special Feature A: 1. 2. 3. 4. 5. B: 1. 2. 3. 4. 5. VIN GND SHDN NC VOUT VOUT GND VIN SHDN NC E: SOT-2X I: SC-70 180: 200: 250: 270: 280: 285: 300: 320: 330: V=1.8V V=2.0V V=2.5V V=2.7V V=2.8V V=2.85V V=3.0V V=3.2V V=3.3V L: Low profile Y: Lead free & Low profile Z: Lead free 3 AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n Ordering Information AME8834 x x x x x x Special Feature Voltage Number of Pins Package Type Operating Temperature Range Pin Configuration Pin Configuration Operating Temperature Range E: -40OC to 85OC Package Type Number of Pins V: 5 Voltage Special Feature A: 1. 2. 3. 4. 5. VIN GND SHDN ADJ VOUT E: SOT-2X I: SC-70 ADJ: Adjustable L: Low profile Y: Lead free & Low profile Z: Lead free 4 AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n Ordering Information Part Number AME8833AEIV180 AME8833AEIV250 AME8833AEIV270 AME8833AEIV280 AME8833AEIV285 AME8833AEIV300 AME8833AEIV320 AME8833AEIV330 AME8833AEEV180L AME8833AEEV250L AME8833AEEV270L AME8833AEEV280L AME8833AEEV285L AME8833AEEV300L AME8833AEEV330L AME8833AEIV180Z AME8833AEIV250Z AME8833AEIV280Z AME8833AEIV285Z AME8833AEIV300Z AME8833AEIV330Z AME8834AEIVADJ Marking AWAw AWBw AXFw AWDw AVZw AWEw AXGw AWCw AWMww AWNww AXEww AWOww AWPww AWQww AWRww AWAw AWBw AWDw AVZw AWEw AWCw AWJw Output Voltage 1.8V 2.5V 2.7V 2.8V 2.85V 3.0V 3.2V 3.3V 1.8V 2.5V 2.7V 2.8V 2.85V 3.0V 3.3V 1.8V 2.5V 2.8V 2.85V 3.0V 3.3V Adjustable Package SC-70 SC-70 SC-70 SC-70 SC-70 SC-70 SC-70 SC-70 SOT-25 SOT-25 SOT-25 SOT-25 SOT-25 SOT-25 SOT-25 SC-70 SC-70 SC-70 SC-70 SC-70 SC-70 SC-70 Operating Temp. Range - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC Note: w represents date code ( A thru Z ) : 2 work weeks per character. Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability. 5 AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n Absolute Maximum Ratings Parameter Input Voltage Output Current Output Voltage ESD Classification Maximum 6 PD / (VIN - VO) GND - 0.3 to V IN + 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 (ja) Thermal Resistance (jc ) Thermal Resistance (ja) Thermal Resistance (jc ) Maximum Junction Temperature Maximum Lead Temperature (10 Sec) SOT-25 SOT-25 SC-70 SC-70 Maximum 260 81 331 224 150 300 Unit o C/W C/W C/W C/W o o o o C C o 6 AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n Electrical Specifications Parameter Input Voltage Symbol V IN VIN=VOUT+0.5V, VSHDN=VIN, TA = 25OC,CIN=COUT=1F, AME8834 is tested with 2.45V output, unless otherwise noted Test Condition 25 C -40 C~85 C 25oC -40oC~85oC 25oC -40 C~85 C 25oC o o o o o Min Note1 -1 -2 -1.5 -2.5 -2 -2.5 -2 -2.5 Typ Max 5.5 1 2 1.5 2.5 2 2.5 2 2.5 500 1000 Units V AME8833 IO=0.1mA AME8834 Output Voltage Accuracy VO AME8833 IO=150mA AME8834 Dropout Voltage Current Limit Foldback Current Quiescent Current Ground Pin Current V DROPOUT ILIM IFB IQ IGND IO=150mA % % -40oC~85oC V OUT >= 2.0V V OUT < 2.0V V OUT=V O(NOM) -2% V O>800mV V O=0V V IN =5V, IO=0mA V IN =5V, IO =1mA to 150mA IO=0.1mA, V OUT>2.0V V IN =V OUT+0.5V to 5.5V IO=0.1mA, V OUT<=2.0V V IN =V OUT+1V to 5.5V V OUT>2.0V V IN =V OUT+0.5V V OUT<=2.0V V IN =V OUT+1V mV mA mA A A 150 200 80 60 50 -0.2 -0.4 -1 -2 137 23 30 0.2 % 0.4 1 % 2 o o Line Regulation REG LINE Load Regulation REGLOAD IO=0.1 to 150mA Over Temperature Shutdown Over Temperature Hysterisis V O Temperature Coefficient Power Supply Rejection Output Voltage Noise SHDN Input Threshold SHDN Input Bias Current Shutdown Supply Current Shutdown Output Voltage ADJ Refernece Voltage (AME8834) ADJ Input Bias Current (AME8834) OTS OTH TC PSRR eN V SHDNH V SHDNL RO=100 CO=0.22F f=10Hz to 100kHz IO=10mA f=1kHz Co=0.22F 0.8xV IN 0 C C ppm/ oC dB Vrms Vin 0.6 V V A 1 0.4 A V V A 7 70 30 V SHDN = 0.8 x V IN V SHDN = 0.6V V IN = 5V EN = 0V or 5V TA= 25 C TA= 85 C TA=25oC o o o 0.01 0.1 0.5 1 0 1.206 ISD V O,SD V REF V IN =5V V O=0V TA=85 C Output Loading<= 1200 ohm, V=0V 1.225 1.243 0.05 0.1 0.1 V IN =5.5V V ADJ =1.3V TA= 25oC TA= 85oC Note1:VIN(min)=VOUT+VDROPOUT AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n Detailed Description The AME8833/8834 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, and thermal shutdown. The P-channel pass transistor receives data from the error amplifier, over-current shutdown, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits become active when the junction temperature exceeds 150oC, or the current exceeds 150mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC. The AME8833/8834 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The AME8833/8834 also incorporates current foldback to reduce power dissipation when the output is short circuited. This feature becomes active when the output drops below 0.8volts, and reduces the current flow by 65%. Full current is restored when the voltage exceeds 0.8 volts. n Shutdown 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 1A. This pin behaves much like an electronic switch. n Adjustable Version AME8834 features a user-adjustable output through an external feedback resister divider. To set the output of AME8834 use the following equation: VOUT=VADJ(1+R1/R2) VADJ=1.225V, use 1% or better resistors n External Capacitors The AME8833/8834 is stable with an output capacitor to ground of 0.22F 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. A second capacitor is recommended between the input and ground to stabilize Vin. The input capacitor should be at least 1F to have a beneficial effect. A larger capacitor improves the AC ripple rejection, but also makes the output come up slowly. This "Soft" turnon 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. 8 AME, Inc. AME8833/8834 Input Current vs. Input Voltage 70 57.5 High PSRR, 150mA CMOS LDO Input Current vs. Temperature Input Current @ no load (uA) 57.0 56.5 56.0 55.5 55.0 54.5 54.0 -45 60 Input Current (uA) 50 40 30 20 10 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 -5 25 55 85 Input Voltage (V) Temperature (oC) Dropout Voltage vs. Load 300 85o C 250 2.850 2.852 Output Voltage vs. Temperature Dropout Voltage (mV) Output Voltage (V) 200 2.848 2.846 2.844 2.842 2.840 2.838 -45 55o C 25o C 150 - 5oC - 45oC 100 50 0 0 30 60 90 120 150 -5 25 55 85 Load Current (mA) Temperature (oC) Output Voltage vs. Load Current 2.855 3.0 Output Voltage vs. Input Voltage 2.850 2.5 Output Voltage (V) Output Voltage (V) 0 30 60 90 120 150 2.0 2.845 1.5 2.840 1.0 2.835 0.5 2.830 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Load Current (mA) Input Voltage (V) 9 AME, Inc. AME8833/8834 Exiting Shutdown Waveform High PSRR, 150mA CMOS LDO Entering Shutdown Waveform Shutdown Voltage 2V / DIV 2V / DIV Shutdown Voltage VOUT=2.85V RLOAD=50 Output Voltage Output Voltage RLOAD=50 10 S / DIV 10 S / DIV Output Noise Spectral Density vs. Frequency 1.0E+04 Line Transient Response Output noise (nV/Hz) VIN =3.0V , I OUT = 0 to 50mA 1.0E+03 1.0E+02 VOUT , 10mV/div 1.0E+01 0.01 0.1 1 10 100 1000 FREQ (KHz) 200uS/div Load Transient Response 75 70 PSRR vs. Frequency VIN = 3.5 to 4.0V PSRR (dB) VOUT , 1mV/div 65 60 55 50 45 40 35 30 0.01 0.1 1 10 100 1000 1mS/div Frequency (KHz) 10 AME, Inc. AME8833/8834 Dropout Voltage vs. Output Voltage 290 270 High PSRR, 150mA CMOS LDO Region of Stable Cout ESR vs. Load Current 1.E+03 Dropout Voltage (mV) 1.E+02 250 230 210 190 170 150 2.0 Cout ESR (ohm) 1.E+01 1.E+00 Stable Region 1.E-01 2.5 3.0 3.5 4.0 4.5 5.0 1.E-02 0 20 40 60 80 100 120 Output Voltage (V) Load Current (mA) 11 AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n Package Dimension SC-70 Top View D e1 0.15(0.006) Side View C A A SYMBOLS A A1 A2 MILLIMETERS MIN 0.80 0.00 0.80 0.15 0.15 0.08 0.08 1.90 2.00 1.15 INCHES MIN 0.031 0.000 0.031 0.006 0.006 0.003 0.003 0.074 0.078 0.045 MAX 1.10 0.10 1.00 0.30 0.25 0.25 0.20 2.15 2.20 1.35 MAX 0.043 0.004 0.040 0.012 0.010 0.010 0.008 0.084 0.086 0.055 D E1/2 E1 0.15(0.006) E/2 E b b1 c See Detail A C e .10(0.004) M B CAB b c1 D E E1 Front View e e1 A SEATING PLANE 0.65BSC 1.30BSC 0.26 0 o 0.0255BSC 0.0512BSC 0.010 0 o A2 L e1 e2 0.46 8 o 0.018 8o 10 o .10(0.004) C A1 C 4o 10o 4o Detail A c 1 SECTION A-A (b) b1 c1 c .15(.0059) H GAGE PLANE BASE METAL NOTE: 1. Controlling Dimension : Millimeter, converted inch dimension 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 or gate burr shall not exceed 0.15mm(0.006") per end. Dimension E1 do not include inter-lead flash or protrusion, inter-lead flash or 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. c L 12 AME, Inc. AME8833/8834 High PSRR, 150mA CMOS LDO n Package Dimension SOT-25-L Top View D L Side View SYMBOLS A+A1 b D E e H L e1 MILLIMETERS MIN 1.00 0.30 2.70 1.40 INCHES MIN 0.0394 0.0118 0.1063 0.0551 MAX 1.30 0.55 3.10 1.80 MAX 0.0512 0.0217 0.1220 0.0709 H E 1.90 BSC 2.60 3.00 0.07480 BSC 0.10236 0.11811 0.0146BSC 0o 10o S1 e c 1 0.37BSC 0o 10 o Front View A S1 0.95BSC 0.0374BSC b A1 13 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. , February 2004 Document: 2029-DS8833/8834-C Corporate Headquarter AME, Inc. 2F, 189 Kang-Chien Road, Nei-Hu Distric 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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