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| INTEGRATED CIRCUITS SA57031-XX Micropower 150 mA, low-noise, low dropout linear regulator with on/off Product data Supersedes data of 2003 Feb 24 2003 Jun 23 Philips Semiconductors Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX GENERAL DESCRIPTION The SA57031 is a 150 mA, fixed output voltage regulator designed to provide very low dropout voltage and low noise in battery powered and portable applications. The output voltage is preset to voltages between 1.8 to 5.0 Volts, in 100 mV increments. The SA57031 achieves excellent performance in all specifications such as excellent power supply ripple rejection at low frequency, low supply-current, low dropout voltage, low power consumption, extremely small size with chip scaled package (CSP), extremely low output noise voltage, very fast start-up response time, precision output, fast dynamic response to line and load regulation, etc. This regulator consists of an internal voltage reference, and current limit. The SA57031 is housed in a WL-CSP4 package (see dimensional drawing for layout). Bottom View FEATURES * Many Preset Output Voltages: 1.8 to 5.0 V in 0.1 V increments * Wafer-level chip scale package (WL-CSP4) * Extremely low PSRR: 80 dB typical at 1 kHz * Low Dropout Voltage: 100 mV (typ) @ 50 mA output current * Very Low Consumption Current: 100 mA typ. (when not loaded), 0.1 mA max. (when off) * Low Temperature Drift Co-efficient to VO: 100 ppm/C * Built-in Current Limiter * Wide Operating Temperature Range: -40 to +85 C APPLICATIONS * High precision Output Voltage: 2% * Output Current Capacity: 150 mA (typ) * Low Noise: 30mVrms @ 10 Hz to 100 kHz * Good Line Regulation: 0.01%/V typ. * Good Load Regulation: 0.003%/mA typ. SIMPLIFIED SYSTEM DIAGRAM (BOTTOM VIEW) ON OFF A2 B2 * Cellular Phones, Cordless Phones and 2-way Radios * Electronic Notebooks, PDAs and Palmtop Computers * Cameras, VCRs and Camcorders * PCMCIA Cards * Modems * Battery-powered or Hand-held Instruments VI CI SA57031-XX GND A1 VO B1 2.2 F + - DC 2.0 V TO 6.0 V RLOAD CO V Preset output voltages: 1.8 V to 5.0 V (in 100 mV increments) SL02001 Figure 1. Simplified system diagram. 2003 Jun 23 2 853-2361 28634 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX ORDERING INFORMATION PACKAGE TYPE NUMBER SA57031-XXUK NAME WL-CSP4 DESCRIPTION wafer level, chip-scale package; 4 bumps TEMPERATURE RANGE -40 to +85 C NOTE: The device has five voltage output options, indicated by the XX on the Type Number. Other voltages, between 2.5 to 5.0 V in 100 mV increments, are available on request. XX 18 24 28 VOLTAGE (Typical) 1.8 V 2.4 V 2.8 V PIN DESCRIPTION PIN A1 B1 B2 A2 SYMBOL GND VO VI ON/OFF Device ground Voltage output Voltage input Control pin. Connect to VI if not used. DESCRIPTION PIN CONFIGURATION (TOP VIEW) ON/OFF A2 B2 VI SA57031-XX GND A1 B1 VO SA00633 Figure 2. Pin configuration. MAXIMUM RATINGS Symbol Tstg Toper VI IO P Storage temperature range Operating Temperature Range Supply voltage Output Current Power dissipation Parameter Min -40 -40 -0.3 Max +150 +85 +7 200 190 Unit C C V mA mW - - 2003 Jun 23 3 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX CHARACTERISTICS Tamb = 25 C; VI = VO(nom) +1 V; VON/OFF = 2 V; IO = 1 mA unless otherwise specified. SYMBOL ICC PARAMETER No-load input current IO = 0 mA IO = 50 mA IO = 150 mA ICC(OFF) Iq VLNR Input current (off) Quiescent Current Line regulation VON/OFF = 0.25 V IO = 0 to 150 mA VI = VO +0.5 V to 6 V IO = 1 to 50 mA VLDR Load regulation IO = 1 to 100 mA IO = 1 to 150 mA VO/T VO Temperature coefficient Tj = -30 to +85 C f = 1 kHz; IO = 1 mA; Vripple = 0.5 V; VO = 1.8 to 4.0 V f = 1 kHz; IO = 1 mA; Vripple = 0.5 V; VO = 4.1 to 5.0 V Vn ION/OFF VON/OFF(H) VON/OFF(L) RON/OFF VO Vdropout Output noise voltage Output short-circuit current ON/OFF HIGH threshold voltage ON/OFF LOW threshold voltage ON/OFF Pull-down resistance Output voltage (nominal) Dropout voltage VO = 2.0 to 2.3 VO = 2.4 to 2.7 VO = 2.8 to 5.0 fBW = 20 to 80 kHz; CO = 2.2 F VI = VO +1 V ; VO = 0 V CONDITIONS MIN. TYP. 45 55 60 0.1 100 5 10 20 30 MAX. 100 - - 1 190 10 25 50 70 mV A A mV UNIT A - - - - - - - - - - - - - - 1.5 0 2.5 x0.98 - - - - 80 70 30 30 ppm/C - dB PSRR Power supply ripple rejection - - - VI 0.25 15 x1.02 0.35 0.29 0.26 Vrms mA V V M V V - - 5 nom 0.25 0.24 0.23 PRESET OUTPUT VOLTAGES Part Number SA57031-25UK SA57031-28UK SA57031-30UK SA57031-33UK SA57031-36UK Min 2.450 2.744 2.940 3.234 3.528 Typ 2.500 2.800 3.000 3.300 3.600 Max 2.550 2.856 3.060 3.366 3.672 2003 Jun 23 4 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX TYPICAL PERFORMANCE CURVES Shown for the SA57031-28UK only; Tamb = 25 C; VI = VO + 1 V; VOn/Off = VI; Cin = 2.2 F, CO = 2.2 F unless otherwise specified 3.0 2.5 OUTPUT VOLTAGE (V) 2.0 1.5 1.0 0.5 0 0 1 2 3 4 5 6 IO = 30 mA IO = 1mA IO = 100 mA LOAD REGULATION Vload(mV) 150 100 50 0 -50 -100 -150 0 50 100 150 INPUT VOLTAGE VI(V) OUTPUT CURRENT IO(mA) SL01970 SL01973 Figure 3. Output voltage versus input voltage. Figure 6. Load regulation versus load current. ( A) 50 45 40 35 30 25 20 15 10 5 0 0 1 2 3 4 5 6 DROPOUT VOLTAGE Vio(V) 0.4 VI = 2.6 V, IO = 10 mA DD NO-LOAD INPUT CURRENT I 0.3 0.2 0.1 0 0 50 100 150 INPUT VOLTAGE VI(V) OUTPUT CURRENT IO(mA) SL01971 SL01974 Figure 4. No-load input current versus input voltage. Figure 7. Dropout voltage versus output current. 1.0 LINE REGULATION Vline (mV) 0.8 IO = 30 mA 3.0 2.5 OUTPUT VOLTAGE Vo(V) 2.0 1.5 1.0 0.5 0 VI = 5.0 V VI = 6.0 V VI = 3.8 V 0.6 0.4 0.2 -0.0 -0.2 -0.4 -0.6 -0.8 -1 3 3.5 4.0 4.5 5.0 5.5 6.0 0 100 200 300 400 INPUT VOLTAGE VI(V) OUTPUT CURRENT IO(mA) SL01972 SL01975 Figure 5. Line regulation versus input voltage. Figure 8. Current limit versus output current. 2003 Jun 23 5 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX GND PIN CURRENT ( A) 100 90 RIPPLE REJECTION (dB) 80 70 60 50 40 30 20 10 0 0 25 50 75 100 125 150 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 0.01 0.10 1.00 IO = 1 mA 10.00 100.00 1000.00 IO = 100 mA IO = 150 mA IO = 30 mA OUTPUT CURRENT (mA) FREQUENCY (kHz) SL01976 SL01978 Figure 9. Ground pin current. Figure 11. Ripple rejection. 2.84 2.82 2.80 2.78 2.76 2.74 2.72 -50 -25 0 25 50 75 100 125 10 S Von/off = 2 V VO = 2.8 V OUTPUT VOLTAGE Vo(V) TEMPERATURE T(C) SL01977 SL01991 Figure 10. Output voltage versus ambient temperatures. Figure 12. On/off control pin. 2003 Jun 23 6 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX IO = 100 mA VI = 4.8 V VI = 3.8 V IO = 0.1 mA 200 S VI = 2 V/div VO = 10 mV/div 500 S CO = 1.0 F IO = 50 mA/div VO = 10 mV/div SL01992 SL01994 Figure 13. Line transient response. Figure 15. Load transient response. IO = 100 mA IO = 0.1 mA 500 S CO = 2.2 F IO = 50 mA/div VO = 10 mV/div SL01993 Figure 14. Load transient response. 2003 Jun 23 7 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX TECHNICAL DISCUSSION As illustrated in Figure 16, the SA57031 consists of a band-gap voltage reference, an error amplifier, P-channel pass transistor, current limit circuit and an internal feedback voltage divider. The output voltage is fed back through an internal resistor voltage divider connected to the VO pin. The reference is connected to the error amplifier's inverting input. The error amplifier compares the reference with the feedback SA57031-XX VI 3 2 VO voltage and amplifies the difference. If the feedback voltage is lower than the reference voltage, the pass transistor's gate is pulled lower, which allows more current to pass to the output and increase the output voltage. If the feedback voltage is too high, the pass transistor gate is pulled up, allowing less current to pass to the output, resulting in a decrease in output voltage. VREF CURRENT LIMITER ON/OFF 4 1 GND SA00634 Figure 16. Block diagram (bottom view). 2003 Jun 23 8 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX APPLICATION INFORMATION The following points have to be kept in mind for good performance while using these devices. good frequency characteristics is needed. Set it as close to the circuit as possible and make the wiring as short as possible. The value of the output capacitance has to be at least 2.2F and has to have B-type temperature characteristics. Input Capacitor An input capacitor of 2.2 F is required between the SA57031 input pin and the circuit ground. This capacitor must be located as close as possible to the VI or GND pin (not more than 1 cm away from the pin) and returned to a clean analog ground. Any good quality ceramic, tantalum, or film capacitor will work. ON/OFF (Chip Enable) Pin The ON/OFF pin must be actively terminated, not floating. If the function is not needed, the pin should be tied to VI to permanently enable the device. Line Impedance of VI and GND The VI and GND lines should be sufficiently wide to minimize impedance. If the impedance of these lines is high, there is a chance to pick up noise or malfunction. Output Capacitor Phase compensation is used for securing stable operation even if the load current varies. For this reason, an output capacitor with ON/OFF PIN MUST BE ACTIVELY TERMINATED ON OFF A2 B2 VI CI SA57031-XX GND A1 VO A RLOAD CO B1 2.2 F + - DC 2.0 V TO 6.0 V V CO = 2.2 mF for VO = 2.5 to 5.0 V CO = 4.7 mF for VO = 1.8 to 2.5 V SA00632 Figure 17. Typical application circuit. 2003 Jun 23 9 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX PACKING METHOD The SA57031-XX is packed in reels, as shown in Figure 18. BARCODE LABEL BAG ESD PRINT DRY-AGENT RELATIVE HUMIDITY INDICATOR TAPE MOISTURE CAUTION PRINT REEL ASSEMBLY GUARD BAND BARCODE LABEL ESD EMBOSSED PRINTED PLANO BOX PRINTED ESD WARNING SPACE FOR ADDITIONAL LABEL BARCODE LABEL PRE-PRINTED HYATT PATENT DRYPACK ID STICKER PRINTED PLANO BOX QA SEAL SL01962 Figure 18. Tape and reel packing method 2003 Jun 23 10 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX TAPE PULL OUT DIRECTION P2 T E P0 D0 F B0 W K A0 P1 NOTES: 1. IC pull out direction TOP VIEW TAPE PULL OUT DIRECTION B HOUSING 2. Carrier tape material: paper type, with ESD protection. 3. The length of the leader: More than 400 mm which include 40 holes or more without any products. IT's must have the top cover tape. 4. The length of trailer: More than 40 mm which include without any products. IT's must have the top copy tape. The end of trailer must be detached from reel. UNIT A0 0.90 B0 1.40 "0.03 W 8.0 "0.1 F 3.5 "0.05 E 1.75 "0.05 P1 4.0 "0.05 P2 2.0 "0.05 P0 4.0 "0.1 D0 1.55 "0.03 T 0.60 "0.03 K 0.58 "0.03 mm "0.03 SL02002 2003 Jun 23 11 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX WL-CSP4: wafer level, chip-scale package; 4 bumps X3 X4 X5 X2 X6 X7 X1 X8 X9 X10 BUMP DIMENSIONS (mm are the original dimensions) UNIT mm X1 1.32 1.26 X2 0.82 0.76 X3 0.5 X4 0.5 X5 0.866 X6 0.212 X7 0.433 X8 0.23 0.13 X9 0.42 0.38 X10 0.10 0.06 SL02098 2003 Jun 23 12 Philips Semiconductors Product data Micropower 150 mA, low-noise, low dropout linear regulator with on/off SA57031-XX REVISION HISTORY Rev _2 Date 20030623 Description Product data (9397 750 11664); ECN 853-2361 30063 dated 23 June 2003. Supersedes SA57031-XX_1 (9397 750 11001) of 2003 Feb 24. * WL-CSP4 package outline dimensional drawing modified. _1 20030224 Product data (9397 750 11001); ECN 853-2361 28634 dated 2002 Jul 18 Modifications: Data sheet status Level I Data sheet status [1] Objective data Product status [2] [3] Development Definitions This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). II Preliminary data Qualification III Product data Production [1] Please consult the most recently issued data sheet before initiating or completing a design. [2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. [3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status. Definitions Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Disclaimers Life support -- These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves the right to make changes in the products--including circuits, standard cells, and/or software--described or contained herein in order to improve design and/or performance. When the product is in full production (status `Production'), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 (c) Koninklijke Philips Electronics N.V. 2003 All rights reserved. Printed in U.S.A. Date of release: 06-03 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com. Document order number: 9397 750 11664 Philips Semiconductors 2003 Jun 23 13 |
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