austriamicrosystems AG is now ams AG The technical content of this austriamicrosystems datasheet is still valid. Contact information: Headquarters: ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 e-Mail: ams_sales@ams.com Please visit our website at www.ams.com D at ash ee t A S1 3 6 0 1 .5 A L o w -P o w e r, P o s iti ve Vo lt a g e R e g u la to r 2 Key Features The AS1360 low-power, positive voltage regulator was designed to deliver up to 250mA while consuming only 1.5A of quiescent current. The device is available in fixed output voltages of 1.8, 2.1, 2.5, 3.0, 3.3, 4.0, 4.5 and 5.0V. Low Quiescent Current: 1.5A Input Voltage Range: Up to 20V The device features integrated short-circuit and overcurrent protection. Low Dropout Voltage al id 1 General Description - 250mV @ 100mA The wide input voltage range, low-dropout voltage, and high-accuracy output voltage makes the device perfectly suited for 2- and 3cell battery-powered and portable applications. Fixed Output Voltages: 1.8, 2.1, 2.5, 3.0, 3.3, 4.0, 4.5, 5.0V High Output Current: 250mA (VOUT = 5.0V) High-Accuracy Output Voltage: 1.5% Exceptional Line Regulation: 0.1%/V Low Temperature Drift: 100ppm/C Integrated Short-Circuit and Overcurrent Protection 3-pin SOT23 Package am lc s on A te G nt st il The low dropout voltage (650mV) prolongs battery life and allows high current in small applications when operated with minimum input-to-output voltage differentials. lv - 400mV @ 200mA The device features very stable output voltage (using only 1F tantalum or aluminum-electrolytic capacitors), strict output voltage regulation tolerances (0.5%), and excellent line-regulation. The AS1360 is available in a 3-pin SOT23 package. 3 Applications The device is ideal for mobile phones, PDAs, digital cameras, smart battery packs, battery-powered alarms, solar-powered instruments, intelligent instruments, CO2 and smoke detectors, CPU power supplies, and any battery-powered application. 3 Te ch ni VIN ca Figure 1. AS1360 - Block Diagram 2 VOUT Short-Circuit Protection + - Voltage Reference AS1360 www.austriamicrosystems.com/LDOs/AS1360 GND 1 Revision 1.07 1 - 13 AS1360 Datasheet - P i n o u t a n d P a c k a g i n g 4 Pinout and Packaging Pin Assignments 1 AS1360 VOUT 3 VIN 2 lv GND al id Figure 2. Pin Assignments (Top View) Pin Descriptions Table 1. Pin Descriptions Pin Number 1 2 Pin Name Description GND Ground. This pin should be connected to the negative side of the output and the negative terminal of the input capacitor. No high-current flows out of this pin, only bias current (1.5A, typ). Note: Voltage drops between this pin and the negative side of the load should be minimized. VOUT Regulated Output Voltage. This pin should be connected to the positive side of the load and the positive terminal of the output capacitor. Current flowing out of this pin is equivalent DC load current. Note: The positive side of the output capacitor should be mounted as close as is practical to this pin. VIN Unregulated Input Voltage. This pin should be connected to the positive terminal of the input capacitor. Note: The input capacitor should be mounted as close as is practical to this pin. Te ch ni ca 3 am lc s on A te G nt st il 3-pin SOT23 www.austriamicrosystems.com/LDOs/AS1360 Revision 1.07 2 - 13 AS1360 Datasheet - A b s o l u t e M a x i m u m R a t i n g s 5 Absolute Maximum Ratings Stresses beyond those listed in Table 2 may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in Section 6 Electrical Characteristics on page 4 is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 2. Absolute Maximum Ratings Max Units Input Voltage +30 V Continuous Output Current PD/ (VIN - VOUT) mA Peak Output Current 500 mA VIN + 0.3V or +7V V Minimum of the two values kV Norm: MIL 883 E method 3015 230 C/W Typical FR4, 4-layer application +125 C Electrical Parameters Output Voltage - 0.3V Electrostatic Discharge +/- 1 am lc s on A te G nt st il Electrostatic Discharge HBM Thermal Information Comments al id Min lv Parameter Thermal Resistance JA Temperature Ranges and Storage Conditions Storage Temperature Range -40 Package Body Temperature Humidity non-condensing 5 C 85 % 1 Represents a max. floor life time of unlimited Te ch ni ca Moisture Sensitive Level +260 The reflow peak soldering temperature (body temperature) specified is in compliance with IPC/ JEDEC J-STD-020 "Moisture/ Reflow Sensitivity Classification for Non-Hermetic Solid State Surface Mount Devices". www.austriamicrosystems.com/LDOs/AS1360 Revision 1.07 3 - 13 AS1360 Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s 6 Electrical Characteristics Typical values are at TAMB = +25C, VDD = 3.3V (unless otherwise specified). All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. Table 3. Electrical Characteristics Parameter Operating Temperature Range VIN Input Voltage VOUT Output Voltage IOUT(MAX) -40 Max Unit +85 C 1 IOUT = 40mA , IOUT = 15mA if VOUT = 1.8V VOUT = 5.0V (VIN = VOUTNOM + 1.0V) VOUT = 4.0V VOUT = 3.3V VOUT = 3.0V VOUT = 2.5V VOUT = 2.1V VOUT = 1.8V VOUT = 5.0V, 1mA IOUT 100mA VOUT = 4.0V, 1mA IOUT 100mA VOUT = 3.3V, 1mA IOUT 80mA VOUT = 3.0V, 1mA IOUT 80mA VOUT = 2.5V, 1mA IOUT 60mA VOUT = 2.1V, 1mA IOUT 40mA VOUT = 1.8V, 1mA IOUT 30mA IOUT = 40mA, (VOUTNOM +1.0) VIN 10.0V IOUT = 200mA, VOUTNOM = 5.0V IOUT = 200mA, VOUTNOM = 4.0V IOUT = 160mA, VOUTNOM = 3.3V IOUT = 160mA, VOUTNOM = 3.0V IOUT = 120mA, VOUTNOM = 2.5V IOUT = 60mA, VOUTNOM = 2.1V IOUT = 20mA, VOUTNOM = 1.8V VIN = VOUTNOM +1.0V VOUTNOM VOUTNOM VOUTNOM - 1.5% 0.5% + 1.5% 250 200 150 150 125 115 110 -1.60 -2.25 -2.72 -3.00 -3.60 -2.60 -1.60 Load Regulation VOUT x 100/ VIN x VOUT Line Regulation 2 Dropout Voltage IQ Input Quiescent Current Temperature Coefficient of 3 VOUT ca VIN - VOUT ni V 0.8 1.1 1.3 1.5 1.8 1.6 0.8 +1.60 +2.25 +2.72 +3.00 +3.60 +2.60 +1.60 % 0.1 0.25 %/V 400 400 400 400 400 200 180 1.5 630 700 700 700 700 500 300 3.0 mV A IOUT = 40mA, -40C TAMB +85C 100 ppm/C 10% VOUTNOM to 90% VOUTNOM, VIN = 0V to VOUTNOM + 1V, RLOAD = 25 resistive 150 s ch Output Rise Time V mA am lc s on A te G nt st il VOUT/VOUT tR Typ 20 Maximum Output Current TCVOUT Min al id TAMB Condition lv Symbol 1. VOUTNOM is the nominal device output voltage. 2. Measured at a constant junction temperature using low duty cycle pulse testing. 6 Te 3. TCVOUT = (VOH - VOL) x 10 /(VOUTNOM x Temperature). Where: VOH is the highest voltage measured over the device temperature range. VOL is the lowest voltage over the device temperature range. www.austriamicrosystems.com/LDOs/AS1360 Revision 1.07 4 - 13 AS1360 Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s 7 Typical Operating Characteristics VOUT = 3.3V, ILOAD = 100A, VIN = 4.3V, CIN 1F (tantalum), COUT = 1F (tantalum), TAMB = +25C (unless otherwise specified). 1.9 1.8 1.8 85C 1.6 1.5 25C 1.4 0C 1.3 1.2 1.6 25C 1.5 0C 1.4 1.3 -40C 1.2 -40C 1.1 85C 1.7 lv 1.7 Supply Current (A) . 1.9 1.1 4 5 6 7 8 9 10 0 25 50 Input Voltage (V) 1.9 100 125 150 175 200 Figure 6. Output Voltage vs. Input Voltage 3.312 1.8 25C 3.31 Output Voltage (V) . Supply Current (A) . 75 Load Current (mA) Figure 5. Supply Current vs. Temperature 1.7 1.6 1.5 1.4 1.3 1.2 0C 3.308 3.306 3.304 3.302 -40C 3.3 85C 3.298 3.296 ca 1.1 -40 -20 0 20 40 60 80 100 120 140 4 5 6 Temperature (C) Dropout Voltage (mV) . ch -40C 0C Te 10 85C 3.29 3.28 9 700 25C 3.3 8 Figure 8. Dropout Voltage vs. Load Current ni 3.31 7 Input Voltage (V) Figure 7. Output Voltage vs. Load Current Output Voltage (V) . al id Figure 4. Supply Current vs. Load Current am lc s on A te G nt st il Supply Current (A) . Figure 3. Supply Current vs. Input Voltage 3.27 3.26 3.25 600 500 400 25C 0C 300 200 -40C 100 3.24 85C 3.23 0 0 10 20 30 40 50 60 70 80 0 Load Current (mA) www.austriamicrosystems.com/LDOs/AS1360 20 40 60 80 100 120 140 160 Load Current (mA) Revision 1.07 5 - 13 AS1360 Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s Figure 9. Load Regulation vs. Temperature Figure 10. Line Regulation vs. Temperature 0.2 VIN = 10V Line Regulation (%/V) . 2.1 1.9 1.7 1.5 VIN = 6V 1.3 1.1 VIN = 4.3V 0.9 40mA -0.2 -0.4 -0.6 -0.8 150mA 0.5 -40 -15 10 35 60 85 -1.2 -40 1.8 1.6 1.4 1.2 0.8 0.6 0.4 35 60 85 Figure 12. Startup Rise Time VOUT 1 10 Temperature (C) Figure 11. Output Voltage vs. Input Voltage; Dropout 2 -15 am lc s on A te G nt st il Temperature (C) lv -1 0.7 Output Voltage (V) 1mA / 10mA 0 500mV/Div Load Regulation (%) . 2.3 al id 2.5 Iload = 40mA 0.2 Iload = 100mA 0 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 50s/Div 1V/Div 1V/Div VOUT Te VIN ch ni Figure 13. Startup Delay ca Input Voltage (V) 500s/Div www.austriamicrosystems.com/LDOs/AS1360 Note: All graphs where measured without additional heat sinks, with the SOT23 package mounted on a 4-layer PCB. Adding additional heat sinks will improve performance in high temperature enviroment. Revision 1.07 6 - 13 AS1360 Datasheet - D e t a i l e d D e s c r i p t i o n 8 Detailed Description The AS1360 is a low-power, positive voltage regulator designed in such a way that the supply current is independent from the load current. The device regulates the output by comparing the output voltage to an internally generated reference voltage. Short Circuit/Overcurrent Protection al id The device is available in fixed output voltages of 1.8, 2.5, 3.0, 3.3, and 5.0V. Fixed output voltages are generated using the internal resistor divider network (see Figure 1 on page 1). The AS1360 monitors current flow through the p-channel MOSFET. In short-circuit or overcurrent conditions, the integrated short-circuit protection circuitry will limit output current. Te ch ni ca am lc s on A te G nt st il lv Note: Thermal Dissipation according to Absolute Maximum Ratings on page 3 must be considered. www.austriamicrosystems.com/LDOs/AS1360 Revision 1.07 7 - 13 AS1360 Datasheet - A p p l i c a t i o n I n f o r m a t i o n 9 Application Information +9V Alkaline Battery 3 VIN CIN 1F AS1360 VOUT = 3.3V COUT 1F 1 lv Tantalum Capacitor * am lc s on A te G nt st il Power Dissipation VOUT * GND * 2 al id Figure 14. AS1360 - Typical Application Diagram Power dissipation (PD) of the AS1360 is the sum of the power dissipated by the p-channel MOSFET and the quiescent current required to bias the internal voltage reference and the internal power amplifier, and is calculated as: PD (P-Channel MOSFET) = (VIN - VOUT)IOUT (EQ 1) Internal power dissipation as a result of the bias current for the internal voltage reference and the error amplifier is calculated as: PD (Bias) = VINIGND (EQ 2) PD(Total) = PD (P-Channel MOSFET) + PD (Bias) (EQ 3) Total AS1360 power dissipation is calculated as: The internal quiescent bias current (2A, typ) is such that the PD(Bias) term of (EQ 3) can be disregarded and the maximum power dissipation can be estimated using VIN(MAX) and VOUT(MIN) to obtain a maximum voltage differential between VIN and VOUT, and multiplying the maximum voltage differential by the maximum output current: PD = (VIN(MAX)VOUT(MIN))IOUT(MAX) Where: (EQ 4) ca VIN = 3.3 to 4.1V VOUT = 3.0V 2% IOUT = 1 to 100mA TAMB(MAX) = 55C PMAX = (4.1V - (3.0V x 0.98)) x 100mA = 116.0mW Junction Temperature ni The AS1360 junction temperature (TJ) can be determined by first calculating the thermal resistance from junction temperature-to-ambient temperature. ch Note: Thermal resistance is estimated to be the junction temperature-to-air temperature RJA, and is approximately 230C/W or 335C/W (when mounted on 1 square inch of copper). RJA will vary depending on PCB layout, air-flow and application specific conditions. The AS1360 junction temperature is determined by calculating the rise in TJ above TAMB, and then adding the increase of TAMB: TJ = PD(MAX) x RJA + TAMB (EQ 5) Te From (EQ 5), the value of TJ can be calculated as: TJ = 116.0mW x 230C/W + 55C Therefore: www.austriamicrosystems.com/LDOs/AS1360 TJ = 81.68C Revision 1.07 8 - 13 AS1360 Datasheet - A p p l i c a t i o n I n f o r m a t i o n External Component Selection Input Capacitor In applications where input impedance is approximately 10, a 1F capacitor is sufficient for CIN (see Figure 14 on page 8). In cases where the AS1360 is operated from a battery, or when there is significant distance between the input source to the AS1360, larger values for CIN may be required for output stability. Output Capacitor al id Note: For values of COUT > 1F, the value of CIN should be increased to prevent high source-impedance oscillations. In most applications for the AS1360, a 1F capacitor (ESR > 0.1/< 5, fRES > 1MHz) is sufficient for COUT (see Figure 14 on page 8). For improved power supply noise rejection and device transient response, larger values can be used for COUT. Te ch ni ca am lc s on A te G nt st il lv Note: For values of COUT > 1F, the input impedance must not be so large that it causes high-input impedance oscillations. www.austriamicrosystems.com/LDOs/AS1360 Revision 1.07 9 - 13 AS1360 Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s 10 Package Drawings and Markings am lc s on A te G nt st il lv al id Figure 15. 3-pin SOT23 Marking Table 4. Packaging Code xxxx xxxx Te ch ni ca encoded Datecode www.austriamicrosystems.com/LDOs/AS1360 Revision 1.07 10 - 13 AS1360 Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s Te ch ni ca am lc s on A te G nt st il lv al id Figure 16. 3-pin SOT23 Package www.austriamicrosystems.com/LDOs/AS1360 Revision 1.07 11 - 13 AS1360 Datasheet - O r d e r i n g I n f o r m a t i o n 11 Ordering Information The device is available as the standard products shown in Table 5. Table 5. Ordering Information Marking Description Delivery Form Package AS1360-18-T ASKD HV low-quiescent current LDO, 1.8V Tape and Reel 3-pin SOT23 AS1360-21-T ASRO HV low-quiescent current LDO, 2.1V Tape and Reel 3-pin SOT23 AS1360-25-T ASKE HV low-quiescent current LDO, 2.5V Tape and Reel AS1360-30-T ASKF HV low-quiescent current LDO, 3.0V Tape and Reel AS1360-33-T ASKG HV low-quiescent current LDO, 3.3V Tape and Reel AS1360-40-T ASQV HV low-quiescent current LDO, 4.0V Tape and Reel AS1360-45-T ASTQ HV low-quiescent current LDO, 4.5V Tape and Reel 3-pin SOT23 AS1360-50-T ASKH HV low-quiescent current LDO, 5.0V Tape and Reel 3-pin SOT23 al id Ordering Code 3-pin SOT23 3-pin SOT23 3-pin SOT23 am lc s on A te G nt st il lv 3-pin SOT23 Note: All products are RoHS compliant. Buy our products or get free samples online at ICdirect: http://www.austriamicrosystems.com/ICdirect Technical Support is found at http://www.austriamicrosystems.com/Technical-Support Te ch ni ca For further information and requests, please contact us mailto:sales@austriamicrosystems.com or find your local distributor at http://www.austriamicrosystems.com/distributor www.austriamicrosystems.com/LDOs/AS1360 Revision 1.07 12 - 13 AS1360 Datasheet Copyrights Copyright (c) 1997-2011, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered (R). All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. al id Disclaimer lv Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. ca am lc s on A te G nt st il The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. Headquarters ni Contact Information ch austriamicrosystems AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Te Tel: +43 (0) 3136 500 0 Fax: +43 (0) 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com/contact www.austriamicrosystems.com/LDOs/AS1360 Revision 1.07 13 - 13