AME, Inc. AME8820 High PSRR, CSP, 150mA CMOS LDO n General Description n Functional Block Diagram The AME8820 family of positive, linear regulators feature low quiescent current (30µA typ.) low dropout voltage and excellent PSRR, thus making them ideal for Telecommunications and other battery applications. The ultra-small CSP package is attractive for "Pocket" and "Hand Held" applications. These rugged devices have both Thermal Shutdown, and Current limit to prevent device failure under the Worst operating conditions. OUT IN Overcurrent Shutdown Thermal Shutdown EN R1 - The AME8820 is stable with an output capacitance of 1µF or larger. AMP + n Features R2 l Very Low Dropout Voltage l Guaranteed 150mA Output Vref GND l Accurate to within 1.0% l 30µA Quiescent Current l Over-Temperature Shutdown l Current Limiting l Excellent PSRR (Typ. 65dB) l Power-Saving Shutdown Mode n Typical Application l Ultra-Small CSP Packages l Factory Pre-set Output Voltages l Low Temperature Coefficient IN IN EN IN l Input Voltage Range (2.5V - 5.5V) l All AME's Lead Free Products Meet RoHS Standards. OUT AME8820 GND OUT C1 C2 1µF 1µF n Applications l Cellular Phones l Instrumentation l Portable Electronics l Wireless Devices l Cordless Phones l PC Peripherals l Battery Powered Widgets l Cameras l Telecommunications Rev.B.01 1 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 n Pin Configuration CSP-4 (4Bumps) Bottom View CSP-4 (4Bumps) Top View AME8820AENU 4 1. EN 3 3 4 2. IN 3. OUT AME8820 (Place holder) 1 4. GND 2 AME8820 (Place holder) 2 1 n Pin Description 2 Pin Number Pin Name Pin Description 1 EN Enable pin. When pulled low, the PMOS pass transistor turns off, current consuming less than 1µA. 2 IN Input voltage pin. It should be decoupled with 1µF or greater capacitor. 3 OUT LDO voltage regulator output pin. It should be decoupled with a 1µF or greater value low ESR ceramic capacitor. 4 GND Ground connection pin. Rev.B.01 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 n Ordering Information AME8820 x x x x xxx x Special Feature Output Voltage Number of Bumps Package Type Operating Ambient Temperature Range Pin Configuration Pin Configuration A: 1. EN 2. IN 3. OUT 4. GND (CSP) (4Bumps) Rev.B.01 Operating Ambient Temperature Range E: -40OC to 85OC Package Type N: CSP Number of Bumps U: 4 Output Voltage 120: 130: 150: 180: 200: 250: 280: 285: 300: 330: V=1.2V V=1.3V V=1.5V V=1.8V V=2.0V V=2.5V V=2.8V V=2.85V V=3.0V V=3.3V Special Feature Z: Lead free 3 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 n Ordering Information Part Number Marking* Output Voltage AME8820AENU120Z Aw 1.2V AME8820AENU130Z Iw 1.3V AME8820AENU150Z Bw 1.5V AME8820AENU180Z Cw 1.8V AME8820AENU200Z Ew 2.0V AME8820AENU250Z Fw 2.5V AME8820AENU280Z Gw 2.8V AME8820AENU285Z Jw 2.85V AME8820AENU300Z Hw 3.0V AME8820AENU330Z Dw 3.3V Package CSP-4 (4 Bumps) CSP-4 (4 Bumps) CSP-4 (4 Bumps) CSP-4 (4 Bumps) CSP-4 (4 Bumps) CSP-4 (4 Bumps) CSP-4 (4 Bumps) CSP-4 (4 Bumps) CSP-4 (4 Bumps) CSP-4 (4 Bumps) Operating Ambient Temperature 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 Note: w represent the date code and pls refer to Date Code Rule page on Package Dimension. * A circle on top represents Pin1 & CSP 4Bumps package. Please consult AME sales office or authorized Rep./Distributor for the availability of package type. 4 Rev.B.01 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 n Absolute Maximum Ratings Parameter Maximum Unit 6 V Output Current PD / (V IN - VOUT) mA Output Voltage GND - 0.3 to VIN + 0.3 V Input Voltage B* ESD Classification Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device * HBM B: 2000V ~ 3999V n Recommended Operating Conditions Parameter Symbol Rating Unit Ambient Temperature Range TA - 40 to 85 o Junction Temperature Range TJ - 40 to 125 o Storage Temperature Range TSTG - 65 to 150 o C C C n Thermal Information Parameter Thermal Resistance (Junction to Ambient) Internal Power Dissipation Solder Iron (10 Sec)* Package CSP-4 (4 Bumps) Die Attach Symbol Maximum Conductive Epoxy θJA 360 PD 400 350 Unit o C/W mW o C * MIL-STD-202G 210F Rev.B.01 5 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 n Electrical Specifications VIN=VOUT(Typ)+1V, IOUT=1mA, VEN=VIN, TJ = -40OC to 125OC,CIN=COUT=1µF, unless otherwise noted Parameter Input Voltage Symbol Test Condition Min Max Units 2.5 5.5 V IOUT = 1mA, TA = 25 C -1.5 1.5 IOUT = 1mA, TJ = -40oC to 125oC -3 3 VIN o Output Voltage Accuracy VOUT IOUT = 150mA Dropout Voltage VDROPOUT VOUT = VOUT(Ty p) - 2%* VOUT(Ty p) TA = 25oC Typ VOUT(Ty p) = 3.3V 125 200 VOUT(Ty p) = 3.0V 140 210 VOUT(Ty p) = 2.85V 150 230 VOUT(Ty p) = 2.8V 150 230 VOUT(Ty p) = 2.5V 180 250 VOUT(Ty p) = 2.0V VOUT(Ty p) < 2.0V VOUT = 0.9 VOUT (Ty p) 400 Short Circuit Current ISC VOUT = 0V 200 Quiescent Current IQ 1mA <= IOUT <= 150mA REGLINE VOUT > 1.8V TA = 25 C -0.25 VIN = VOUT + 0.5V to 5.5V TJ = -40oC to 125oC -0.4 TA = 25 C -0.6 VIN = 2.5V to 5.5V TJ = -40oC to 125oC -1.0 TA = 25oC -0.02 TJ = -40oC to 125oC -0.03 TA = 25oC -0.03 TJ = -40oC to 125oC -0.04 TA = 25oC -0.04 TJ = -40oC to 125oC -0.05 VIN = VOUT + 1V IOUT = 1mA to 150mA 1.8V < VOUT < 2.5V Load Regulation (See Note 2) REGLOAD o 1.2V <= VOUT <= 1.8V VOUT >= 2.5V VIN = VOUT + 1V IOUT = 1mA to 150mA 1.2V <= VOUT <= 1.8V VIN = 2.5V IOUT = 1mA to 150mA 6 VIN(min)=2.5V ILIM Line Regulation (See Note 1) mV 500 Current Limit o % 600 mA 30 50 0.1 0.25 0.4 0.3 mA 0.6 µA %/V 1.0 0.001 0.02 0.03 0.002 0.03 %/mA 0.04 0.015 0.04 0.05 Over Temperature Shutdown OTS 150 o Over Temperature Hysterisis OTH 25 o C C Rev.B.01 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 n Electrical Specifications Parameter Symbol Test Condition Min Typ Max Units IOUT = 1mA VOUT Temperature Coefficient TC VOUT > 1.8V VIN = VOUT + 1V ppm/oC 30 1.2V <= VOUT <= 1.8V VIN = 2.5V VOUT >= 2.5 65 VIN = VOUT + 1V IOUT = 100mA, Power Supply Rejection PSRR COUT = 4.7µF, Freq.= 1KHz 1.8V <= VOUT < 2.5V 1.2V <= VOUT < 1.8V 65 VIN = 2.5V Enable Input Threshold Voltage VENH VENL 2.5V <= VIN <= 5.5V dB 60 VIN = VOUT + 1V 1.4 V 0.3 V Enable Input Bias Current IEN VIN = 5V, EN = 0V or 5V 0.1 1 µA Shutdown Supply Current ISD VIN = 5V, VEN = 0V 0.5 1 µA ∆Vout × 100% ∆Vin Note 1: Line Regulation = Vout ∆Vout ×100% Vout Note 2: Load Regulation = ∆I (mA) Rev.B.01 7 AME, Inc. AME8820 High PSRR, CSP, 150mA CMOS LDO n Detailed Description The AME8820 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 125oC. The AME8820 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. n External Capacitors The AME8820 is stable with an output capacitor to ground of 1µF or larger. 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. n Board layout Recommendations to Improve PSRR and Output Noise To improve AC measurements like transient response, PSRR, and output noise, it is recommended that the board should be designed with separate ground planes for VIN and VOUT, with each ground plane connected only at the ground pin of the device. n Over Current Protection and Short circuit Protection During normal operation, the AME8820 limits output current to approximately 400mA. When current limiting engages, the output voltage scales back linearly until the overcurrent condition ends. When the output voltage is lower than approximately 0.8V,call short circuit , the AME8820 limits output current to approximately 200mA (fold back current). When short circuit protection engages, regulator operation resumes until removed the short circuit condition. Over current and short circuit protection prevent gross device failure, care should be taken not to exceed the power dissipation ratings of the package A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be at least 1µF to have a beneficial effect. n Enable The Enable Pin is normally pull-high. When disable, it pulled low, the PMOS pass transistor shut off. All internal circuits are power down. Under this circumstance, the standby current is less than 1µA. This pin can’t be floating. 8 Rev.B.01 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 n Over Temperature Protection As protection from damage due to excessive junction temperatures, the AME8820 has internal protection circuit. When junction temperature reaches approximately 150oC, the output device is turned off. Once the device has cooled down to below approximately 125oC, regulator operation resumes. For reliable operation,design is for worst case junction temperature of < 125oC taking into account worst case ambient temperature and load conditions. Depending on each package type, presenting different power dissipation, thermal resistance, and ambient temperature, the thermal protection circuit may cycle on and off. This cycling limits the dissipation of the regulator, protecting it from damage due to overheating. Any tendency to activate the thermal protection circuit indicates excessive power dissipation or inadequate heatsink. For reliable operation, junction temperature should be limited to +125oC maximum. To estimate the margin of safety in a complete Power design (including heatsink), increase the ambient temperature until the thermal protection is triggered; use worst-case loads and signal conditions. For good reliability, thermal protection should trigger at least +35oC above the maximum expected ambient condition of your particular application. This configuration produces a worst-case junction temperature of +125oC at the highest expected ambient temperature and worst-case load. The internal protection circuitry of the AME8820 has designed to protect against overload conditions. It was not intended to replace proper heatsinking. Continuously running the AME8820 into Thermal protection disables the output when the thermal shutdown will degrade device reliability. Using equation (1) and (2) to calculate T J : TJ = TA + (PD x RθJA) (1) PD = (VIN-VOUT) x IOUT + VIN x IQ (2) Rev.B.01 9 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 Dropout Voltage vs Temperature Output Voltage vs Load Current 180 3.3505 3.3405 VIN=4.3V TA=25oC 160 Dropout Voltage (V) Output Voltage (V) 3.3305 3.3205 3.3105 3.3005 3.2905 3.2805 140 100 80 60 3.2705 40 3.2605 20 3.2505 0 15 30 45 60 75 90 105 120 135 0 -40 150 Output Noise Spectral Density (nV / Hz ) Output Voltage (V) 35 50 65 80 95 110 125 400 VIN=4.3V IOUT=1mA 3.27 3.26 3.25 IOUT=150mA 3.24 -25 -10 5 20 35 50 Temperature 65 80 95 300 200 IOUT=1mA 100 IOUT=150mA 0 100 110 125 1000 (oC) 10000 100000 Frequency (Hz) Quiescent Current vs Temperature Output Impedance vs Frequency 50 2.0 VIN=4.3V 1.8 IOUT=150mA 40 Output Impedance (Ω) Quiescent Current (µA) 20 Output Noise Spectral Density 3.23 35 30 25 IOUT=1mA 20 15 10 1.6 1.4 1.2 1.0 IOUT=50mA 0.8 IOUT=150mA 0.6 0.4 0.2 5 -25 -10 5 20 35 50 65 Temperature (oC) 10 5 Output Voltage vs Temperature 3.28 0 -40 -10 Temperature (oC) 3.29 45 -25 Load Current (mA) 3.30 3.22 -40 VIN=4.3V IOUT=150mA 120 80 95 110 125 0 10 100 1000 10000 100000 1000000 Frequency (Hz) Rev.B.01 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 Load Transient Response 5.5 4.3 Output Current (mA) Input Voltage (V) Line Transient Response 200 100 20 -20 Output Voltage (mV) Output Voltage (mV) 0 -50 Time (µS) Power Supply Ripple Rejection Power Supply Ripple Rejection 110 VIN=4.3V IOUT=1mA 100 90 VIN=4.3V IOUT=150mA 100 90 80 80 PSRR (dB) PSRR (dB) 0 Time (µS) 110 70 60 50 70 60 50 40 40 30 30 20 20 10 10 50 1K 100K 10M Frequency (Hz) 10 10 1K 100K 10M Frequency (Hz) Rising Time 4.3V 3.3V EN VOUT Time (µS) Rev.B.01 11 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 n Date Code Rule :Year Code w: Work Week Code A: B: 01&02 03&04 K: 21&22 L: U: 23&24 V: 41&42 xxx0 W W 43&44 xxx1 W W W W C: 05&06 M: 25&26 W: 45&46 xxx2 D: 07&08 N: 27&28 X: 47&48 xxx3 W W E: 09&10 O: 29&30 Y: 49&50 xxx4 W W F: 11&12 P: 31&32 Z: 51&52 xxx5 W W G: 13&14 Q: 33&34 xxx6 W W H: 15&16 R: 35&36 xxx7 W W I: 17&18 S: 37&38 xxx8 W W 39&40 xxx9 W W J: 19&20 T: n Tape & Reel Dimension CSP-4 (4Bumps) P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package CSP-4 (4Bumps) 12 Carrier Width (W) 8.0 +0.3 mm -0.1 Pitch (P) Part Per Full Reel Reel Size 4.0±0.1 mm 3000pcs 180±1 mm Rev.B.01 AME, Inc. High PSRR, CSP, 150mA CMOS LDO AME8820 n Package Dimension CSP-4 (4Bumps) Bottom View SYMBOLS C B A Datum D E F MILLIMETERS INCHES MIN MAX MIN MAX A 0.310 0.350 0.012 0.014 B 0.810 0.850 0.032 0.033 C 1.060 1.260 0.042 0.050 D 0.310 0.350 0.012 0.014 E 0.810 0.850 0.032 0.033 F 1.060 1.260 0.042 0.050 G 0.020 0.050 0.001 0.002 H 0.380 0.450 0.015 0.018 I 0.595 0.705 0.023 0.028 J 0.300 0.340 0.012 0.013 Side View Ball Pitch 500 um J G H I Rev.B.01 13 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. , June 2007 Document: 1041-DS8820-B.01 Corporate Headquarter U.S.A.(Subsidiary) AME, Inc. Analog Microelectronics, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District 3100 De La Cruz Blvd., Suite 201 Taipei 114, Taiwan. Tel: 886 2 2627-8687 Santa Clara, CA. 95054-2438 Tel : (408) 988-2388 Fax: 886 2 2659-2989 Fax: (408) 988-2489