AME AME8890 n General Description The AME8890 is a fixed 1.2V of positive, linear regulator feature low quiescent current (60µA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-25/TSOT-25 packages are attractive for "Pocket" and "Hand Held" applications. 150mA CMOS LDO n Functional Block Diagram VOUT VIN Overcurrent Shutdown This rugged device has both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" operating conditions. Thermal Shutdown EN R1 An additional feature is a "Power Good" detector, which pulls low when the output is out of regulation. AMP The AME8890 is stable with an output capacitor of 2.2µF or greater. PG Delay R2 n Features l Very Low Dropout Voltage GND l Guaranteed 150mA Output l Accurate to within 3% l 60µA Quiescent Current l Over-Temperature Shutdown n Typical Application l Current Limiting l Short Circuit Current Fold-back l Power Good Output Function VIN VIN VOUT AME8890 l Power-Saving Shutdown Mode PG l Space-Saving SOT-25/TSOT-25 l Low Temperature Coefficient l All AME’ s Lead Free Product Meet RoHS V OUT GND EN C1 C2 1µF 2.2µF 5V Standards n Applications l Instrumentation l Portable Electronics l Wireless Devices l Cordless Phones l PC Peripherals l Battery Powered Widgets Rev.F.03 1 AME AME8890 150mA CMOS LDO n Typical Application 47KΩ 1 V IN Optional: EN May Be Connected to VI 2 3 GND VOUT 5 1.2V 2.2uF AME8890 EN 4 PG Shutdown Figure 1. Typical Application Schematic VCC3_3 V CC1_2 1 2 3 1uF VIN GND EN VOUT 5 10KΩ AME8890 PG 4 2.2uF Figure 2. Typical Application For Processor VID Code Power Sequencing Schematic 2 Rev.F.03 AME AME8890 150mA CMOS LDO n Pin Configuration SOT-25/TSOT-25 Top View 5 AME8890 4 1. IN 2. GND AME8890 3. EN 4. PG 5. OUT 1 2 3 * Die Attach: Conductive Epoxy n Pin Description Pin Number Pin Name 1 IN 2 GND 3 EN Enable/Shutdown (Input) : CMOS compatible input. Logic high = enable;logic low = shutdown. Do not leave open. 4 PG Power Good Output 5 OUT Rev.F.03 Pin Description Supply Input Ground Regulator Output 3 AME AME8890 150mA CMOS LDO n Ordering Information AME8890 x x x x x Special Feature Number of Pins Package Type Operating Ambient Temperature Range Product Grade or Option Product Grade or Option Operating Ambient Temperature Range T: 1.2V E: -40O C to +85O C Package Type E: SOT-2X Number of Pins V: 5 Special Feature L: Low Profile Y : Lead Free & Low Profile Z: Lead Free n Ordering Information Part Number Marking* Output Voltage Package Operating Ambient Temperature Range AME8890TEEV ATBww 1.2V SOT-25 - 40oC to +85oC AME8890TEEVL ATBww 1.2V TSOT-25 - 40oC to +85oC AME8890TEEVZ ATBww 1.2V SOT-25 - 40oC to +85oC AME8890TEEVY ATBww 1.2V TSOT-25 - 40oC to +85oC Note: ww represents the date code and pls refer to Date Code Rule before Package Dimension. * A line on top of the first character represents lead free plating such as ATBww. Please consult AME sales office or authorized Rep./Distributor for package type availability. 4 Rev.F.03 AME AME8890 150mA CMOS LDO n Absolute Maximum Ratings Parameter Maximum Unit Input Voltage -0.3 to +7 V EN Voltage -0.3 to +7 V Output Voltage -0.3 to VIN +0.3 V PG Voltage -0.3 to VIN +0.3 V Output Current PD / (VIN - VOUT) mA 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 Package Die Attach Symbol Maximum Unit Thermal Resistance* (Junction to Case) SOT-25 TSOT-25 Conductive Epoxy θJC 81 o C/W Thermal Resistance (Junction to Ambient) SOT-25 TSOT-25 Conductive Epoxy θJA 260 o C/W Internal Power Dissipation SOT-25 TSOT-25 Conductive Epoxy PD 400 mW Maximum Junction Temperature 150 o C Solder Iron(10 Sec)** 350 o C * Measure θJC on center of molding compound if IC has no tab. ** MIL-STD-202G 210F Rev.F.03 5 AME AME8890 150mA CMOS LDO n Electrical Specifications VIN = 2.7V, VEN = VIN, IOUT=100µA,TA = 25OC unless otherwise noted Parameter Symbol Input Voltage VIN Output Voltage Accuracy VO Dropout Voltage Current Limit VDROPOUT Test Condition IO=0.1mA IO=150mA VOUT=VO -2.0% Min Typ Max Units 2.7 6 V -3 3 % 1.0V<VO(NOM)<=2.0V 1300 2.0V<VO(NOM)<=2.8V N/A 2.8V<VO(NOM) N/A ILIM VO< 0.1V 150 350 Quiescent Current IQ VIN =6V, IO=0mA, VO=VO (nom) 55 Ground Pin Current IGND VIN =6V, IO =1mA to 150mA 35 mV mA 80 µA µA Line Regulation ∆VOUT ×100% ∆VIN Load Regulation REGLINE REGLOAD IO=100µA 1.0<= V O <= 2.0V VIN =2.7V to 6V IO=100µA to 150mA -0.3 -4 0.3 1 4 % % Over Temperature Shutdown OTS 150 o Over Temperature Hysterisis OTH 30 o TC 30 VO Temperature Coefficient Power Supply Rejection Output Voltage Noise EN Input Threshold PSRR eN IO=100mA CO=2.2µF f=10Hz to 100kHz IO=10mA f=1kHz 50 f=10kHz 20 f=100kHz 15 Co=2.2µF 30 C C ppm/oC dB µVrms VEH 1.6 Vin V VEL 0 0.4 V IEH VEN =VIN 0.1 µA IEL VEN =0V 0.1 µA Shutdown Supply Current ISD VIN =5V, VO=0V, VEN =0V 0.5 Shutdown Output Voltage VO,SD Output Loading<=1200Ω , V=0V Output Under Voltage VUV PG ON @ % of VOUT PG Leakage Current ILC VPG=6V , PG is off PG Voltage Low VOL ISINK=0.1mA VPG Delay TPGD See Timing Diagram on page 9 EN Input Bias Current 0 1 µA 0.4 V 85 %VO(NOM) µA 0.1 1.5 0.1 V 5 ms Note1:VIN(min) =VOUT+VDROPOUT 6 Rev.F.03 AME AME8890 150mA CMOS LDO n Detailed Description n Enable The AME8890 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, thermal shutdown, and power good function. The Enable pin normally floats high. 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 1µA. This pin behaves much like an electronic switch. 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 300mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC. The AME8890 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The AME8890 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 Power Good The AME8890 includes the Power Good feature. When the output is not within +15% of the specified voltage, it pulls low. This can occur under the following conditions: 1) Input Voltage too low. 2) During Over-Temperature. 3) During Over-Current. 4) If output is pulled up. (Note: PG pin is an open-drain output.) n External Capacitors The AME8890 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. 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. Rev.F.03 7 AME AME8890 150mA CMOS LDO Output Voltage vs. Temperature Quiescent Current vs. Temperature 1.2025 44 Quiescent Current (uA) 42 Output Voltage (V) 1.2020 1.2015 1.2010 1.2005 40 38 36 34 32 1.2000 -45 -5 25 55 30 -45 85 -5 0.50 2.2 0.45 0.40 0.35 0.30 0.25 -5 25 55 2.0 1.9 1.8 1.7 -45 85 -5 Short Circuit Current vs. Temperature 55 85 Dropout Voltage vs. Temperature 1.10 Dropout Voltage @ 150mA (V) Short Circuit Current (mA) 25 Temperature (oC) 124 122 120 118 116 114 112 -5 25 Temperature (o C) 8 85 2.1 Temperature (o C) 110 -45 55 PG Delay Time vs. Temperature 2.3 PG Delay Time (mS) Load Regulation 1-150mA (%) Load Regulation vs. Temperature 0.55 0.20 -45 25 Temperature (oC) Temperature ( o C) 55 85 1.05 1.00 0.95 0.90 0.85 -45 -5 25 55 85 Temperature (oC) Rev.F.03 AME AME8890 150mA CMOS LDO n Timing Diagram 95% 95% 95% VOUT Fault Condition VEN Min-Max VPG Rev.F.03 1.5-5ms 1.5-5ms 9 AME AME8890 150mA CMOS LDO n Date Code Rule Marking Date Code Year A A A W W xxx0 A A A W W xxx1 A A A W W xxx2 A A A W W xxx3 A A A W W xxx4 A A A W W xxx5 A A A W W xxx6 A A A W W xxx7 A A A W W xxx8 A A A W W xxx9 n Tape and Reel Dimension TSOT-25 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size 10 Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size TSOT-25 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm Rev.F.03 AME AME8890 150mA CMOS LDO n Tape and Reel Dimension SOT-25 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Rev.F.03 Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size SOT-25 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm 11 AME AME8890 150mA CMOS LDO n Package Dimension SOT-25 Top View Side View D θ1 SYMBOLS MILLIMETERS MIN 1.20REF E H A PIN 1 L S1 0.0472REF 0.15 0.0000 0.0059 b 0.30 0.55 0.0118 0.0217 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 1.90 BSC 2.60 θ1 0.07480 BSC 3.00 0.37BSC L 0 o 10 0.10236 0.11811 0.0146BSC o 0 o 10 0.95BSC 0.0374BSC MILLIMETERS INCHES S1 o A1 A MAX 0.00 H Front View MIN A1 e e MAX INCHES b TSOT-25 Top View Side View D θ1 E H SYMBOLS PIN 1 L S1 MIN MAX A+A1 0.90 1.25 0.0354 0.0492 b 0.30 0.50 0.0118 0.0197 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 H 1.90 BSC 2.40 S1 3.00 0 o 10 0.95BSC 0.09449 0.11811 0.0138BSC o 0 o 10 o 0.0374BSC A1 A θ1 0.07480 BSC 0.35BSC L Front View 12 MAX e e b MIN Rev.F.03 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., November 2008 Document: 2041-DS8890-F.03 Corporate Headquarter AME, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989