High Current LDO with Low IQ and High PSRR ISL9007 Features ISL9007 is a high performance LDO that delivers a continuous 400mA of load current. It has a low standby current and high PSRR and is stable with output capacitance of 1µF to 10µF with an ESR of up to 200mΩ. • High performance LDO with 400mA continuous output The ISL9007 has a very high PSRR of 75dB and output noise less than 30µVRMS. When coupled with a no load quiescent current of 50µA (typical), and 1µA (max) shutdown current, the ISL9007 is an ideal choice for portable wireless equipment. The ISL9007 comes in fixed voltage options of 3.3V, 2.85V, 2.8V, and 2.5V with ±1.8% output voltage accuracy over-temperature, line and load. Other output voltage options may be available upon request. • Excellent transient response to large current steps • Excellent load regulation: <0.1% voltage change across full range of load current • Very high PSRR: 75dB @ 1kHz • Wide input voltage capability: 2.3V to 6.5V • Very low quiescent current: 50µA • Low dropout voltage: typically 200mV @ 400mA • Low output noise: typically 30µVRMS @ 100µA (2.5V) • Stable with 1µF to 10µF ceramic capacitors • Shutdown pin turns off LDO for 1µA (max) standby current • Soft-start to limit input current surge during enable • Current limit and overheat protection • ±1.8% accuracy over all operating conditions • 8 Ld MSOP package • -40°C to +85°C operating temperature range • Pb-free (RoHS compliant) Applications • PDAs, Cell Phones and Smart Phones • Portable Instruments, MP3 Players • Handheld Devices, including Medical Handhelds VIN VO VIN UVLO ISL9007 1 8 VIN (3.0V TO 6.5V) VIN 7 OFF 6 SHUTDOWN ON VOUT VO CONTROL LOGIC VIN SD 5 SHORT CIRCUIT, THERMAL PROTECTION, SOFT-START GND C1 C2 SD + - C1, C2: 1µF X5R CERAMIC CAPACITOR BANDGAP AND TEMPERATURE SENSOR FIGURE 1. TYPICAL APPLICATION February 11, 2014 FN9218.3 1 GND FIGURE 2. BLOCK DIAGRAM CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2005, 2008, 2014. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. ISL9007 Pin Configuration Pin Descriptions ISL9007 (8 LD MSOP) TOP VIEW VO 1 8 VIN NC 2 7 VIN NC 3 6 SD NC 4 5 GND PIN NUMBER PIN NAME 1 VO LDO Output: Connect capacitor of value 1µF to 10µF to GND (1µF recommended) 2, 3, 4 NC No Connection 5 GND 6 SD LDO Shutdown. When this signal goes high, the LDO is turned off. 7, 8 VIN Supply Voltage/LDO Input: Connect a 1µF capacitor to GND. DESCRIPTION GND is the connection to system ground. Connect to PCB Ground plane. Ordering Information PART NUMBER (Notes 1, 2, 3) PART MARKING VO VOLTAGE (V) (Note 4) TEMP RANGE (°C) PACKAGE (Pb-free) PKG. DWG. # ISL9007IUNZ 007NZ 3.3 -40 to +85 8 Ld MSOP M8.118 ISL9007IUKZ 007KZ 2.85 -40 to +85 8 Ld MSOP M8.118 ISL9007IUJZ 007JZ 2.8 -40 to +85 8 Ld MSOP M8.118 ISL9007IUFZ 007FZ 2.5 -40 to +85 8 Ld MSOP M8.118 ISL9007IUCZ 007CZ 1.8 -40 to +85 8 Ld MSOP M8.118 ISL9007EVAL1Z Evaluation Board NOTES: 1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pbfree products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL9007. For more information on MSL please see techbrief TB363. 4. For other output voltages, contact Intersil Marketing. 2 FN9218.3 February 11, 2014 ISL9007 Absolute Maximum Ratings Thermal Information Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7.1V VO Pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.6V All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (VIN + 0.3)V Thermal Resistance (Typical) θJA (°C/W) θJC (°C/W) 8 Ld MSOP Package (Notes 5, 6) . . . . . . . . 157 75 Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Recommended Operating Conditions Ambient Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . -40°C to +85°C Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3V to 6.5V CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. NOTES: 5. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details. 6. For θJC, the “case temp” location is taken at the package top center. Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature range of the device as follows: TA = -40°C to +85°C; VIN = (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF. Boldface limits apply over the operating temperature range, -40°C to +85°C. PARAMETER SYMBOL TEST CONDITIONS MIN (Note 7) TYP MAX (Note 7) UNITS 6.5 V DC CHARACTERISTICS Supply Voltage VIN Ground Current IDD Quiescent condition: IO = 0µA 50 70 µA Shutdown Current IDDS @ +25°C 0.1 1.0 µA UVLO Threshold VUV+ 1.9 2.1 2.3 V VUV- 1.6 1.8 2.0 V Regulation Voltage Accuracy 2.3 Initial accuracy at VIN = VO + 0.5V, IO = 10mA, TJ = +25°C -0.7 +0.7 % VIN = VO + 0.5V to 5.5V, IO = 10µA to 400mA, TJ = +25°C -0.8 +0.8 % VIN = VO + 0.5V to 5.5V, IO = 10µA to 400mA, TJ = -40°C to -1.8 +1.8 % Continuous 400 +125°C Maximum Output Current IMAX Internal Current Limit ILIM Drop-out Voltage (Note 9) VDO1 VDO2 Thermal Shutdown Temperature 470 mA 540 750 mA IO = 400mA; 2.5V ≤ VO ≤ 2.8V 250 400 mV IO = 400mA; 2.8V < VO 200 325 mV TSD+ 145 °C TSD- 110 °C @ 1kHz 75 dB @ 10kHz 60 dB @ 100kHz AC CHARACTERISTICS Ripple Rejection (Note 8) IO = 10mA, VIN = 2.8V (min), VO = 1.8V Output Noise Voltage (Note 8) 40 dB IO = 100µA, VO = 1.5V, TA = +25°C BW = 10Hz to 100kHz 40 µVRMS DEVICE START-UP CHARACTERISTICS Device Enable Time tEN Time from assertion of the ENx pin to when the output voltage reaches 95% of the VO (nom) 250 500 µs LDO Soft-start Ramp Rate tSSR Slope of linear portion of LDO output voltage ramp during start-up 30 60 µs/V 3 FN9218.3 February 11, 2014 ISL9007 Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature range of the device as follows: TA = -40°C to +85°C; VIN = (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF. (Continued)Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) PARAMETER SYMBOL MIN (Note 7) TEST CONDITIONS TYP MAX (Note 7) UNITS SD PIN CHARACTERISTICS Input Low Voltage VIL -0.3 0.4 V Input High Voltage VIH 1.4 VIN + 0.3 V 0.1 µA Input Leakage Current IIL, IIH Pin Capacitance CPIN Informative 5 pF NOTES: 7. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. 8. Limits established by characterization and are not production tested. 9. VO-x = 0.98*VO-x(NOM). Typical Performance Curves 0.10 0.8 VO = 3.3V IL = 0mA 0.4 0.2 -40°C 0.0 +25°C -0.2 +85°C -0.4 VIN = 3.8V VO = 3.3V 0.08 OUTPUT VOLTAGE CHANGE (%) OUTPUT VOLTAGE, VO (%) 0.6 -0.6 0.06 0.04 -40°C 0.02 +25°C 0.00 -0.02 +85°C -0.04 -0.06 -0.08 -0.8 3.4 3.8 4.2 4.6 5.0 5.4 5.8 6.2 -0.10 6.6 0 50 INPUT VOLTAGE (V) FIGURE 3. OUTPUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT) 350 400 FIGURE 4. OUTPUT VOLTAGE vs LOAD CURRENT 3.4 0.10 VIN = 3.8V VO = 3.3V IL = 0mA 0.08 3.3 OUTPUT VOLTAGE, VO (V) 0.06 OUTPUT VOLTAGE (%) 100 200 300 150 250 LOAD CURRENT - IO (mA) 0.04 0.02 0.00 -0.02 -0.04 -0.06 VO = 3.3V IO = 0mA 3.2 IO = 150mA 3.1 IO = 300mA 3.0 2.9 -0.08 -0.10 -40 2.8 -25 -10 5 20 35 50 65 TEMPERATURE (°C) 80 95 110 125 FIGURE 5. OUTPUT VOLTAGE vs TEMPERATURE 4 3.1 3.6 4.1 4.6 5.1 5.6 6.1 6.5 INPUT VOLTAGE (V) FIGURE 6. OUTPUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT) FN9218.3 February 11, 2014 ISL9007 Typical Performance Curves 2.9 350 VO = 2.8V IO = 0mA DROP OUT VOLTAGE, VDO (mV) OUTPUT VOLTAGE, VO (V) 2.8 2.7 IO = 150mA 2.6 IO = 300mA 2.5 2.4 2.3 2.6 3.1 3.6 4.1 4.6 5.6 5.1 250 200 VO = 2.8V 150 VO = 3.3V 100 50 0 6.5 6.1 300 0 50 100 INPUT VOLTAGE (V) FIGURE 7. OUTPUT VOLTAGE vs INPUT VOLTAGE (2.8V OUTPUT) 150 200 250 OUTPUT LOAD (mA) 300 350 400 FIGURE 8. DROPOUT VOLTAGE vs LOAD CURRENT 350 80 300 70 GROUND CURRENT (µA) DROP OUT VOLTAGE, VDO (mV) VO = 3.3V 250 200 +25°C +85°C 150 -40°C 100 +25°C 50 -40°C 40 30 50 0 125°C 60 VO = 3.3V IO = 0µA 0 50 100 150 200 250 300 350 20 400 3.0 3.5 4.0 OUTPUT LOAD (mA) FIGURE 9. DROPOUT VOLTAGE vs LOAD CURRENT 5.0 4.58 5.5 INPUT VOLTAGE (V) 6.5 6.0 FIGURE 10. GROUND CURRENT vs INPUT VOLTAGE 80 200 180 70 +25°C 140 +85°C -40°C 120 100 80 60 40 0 0 50 100 150 200 250 300 LOAD CURRENT (mA) FIGURE 11. GROUND CURRENT vs LOAD 5 350 60 50 40 VIN = 3.8V VO = 3.3V IL = 0µA 30 VIN = 3.8V VO = 3.3V 20 GROUND CURRENT (µA) GROUND CURRENT (µA) 160 400 20 -40 -25 -10 5 20 35 50 65 TEMPERATURE (°C) 80 95 110 125 FIGURE 12. GROUND CURRENT vs TEMPERATURE FN9218.3 February 11, 2014 ISL9007 Typical Performance Curves VO = 3.3V IL = 300mA VIN = 5.0V VO = 3.3V IL = 300mA CL = 1µF 3 CL = 1µF 4.3V VO (V) 2 3.6V 1 VEN (V) 0 5 10mV/DIV 0 0 100 200 300 400 500 600 700 800 900 1K 400 µs/DIV TIME (µs) FIGURE 13. TURN ON/TURN OFF RESPONSE FIGURE 14. LINE TRANSIENT RESPONSE, 3.3V OUTPUT VO = 2.8V IL = 300mA CL = 1µF VO (25mV/DIV) 4.2V 3.5V VO = 1.8V VIN = 2.8V 300mA 10mV/DIV ILOAD 100µA 100µs/DIV 400µs/DIV FIGURE 16. LOAD TRANSIENT RESPONSE FIGURE 15. LINE TRANSIENT RESPONSE, 2.8V OUTPUT 100 10 90 80 SPECTRAL NOISE DENSITY (µV/√Hz) VIN = 3.5V VO = 2.5V IO = 10mA CL = 1µF PSRR (dB) 70 60 50 40 30 20 10 0 100 1k 10k FREQUENCY (Hz) 100k FIGURE 17. PSRR vs FREQUENCY 6 1M 1 0.1 0.01 VIN = 3.6V VO = 1.8V ILOAD = 10mA CIN = 1µF CL = 1µF 0.001 10 100 1k 10k FREQUENCY (Hz) 100k 1M FIGURE 18. SPECTRAL NOISE DENSITY vs FREQUENCY FN9218.3 February 11, 2014 ISL9007 Functional Description The ISL9007 contains all circuitry required to implement a high performance LDO. High performance is achieved through a circuit that delivers fast transient response to varying load conditions. In a quiescent condition, the ISL9007 adjusts its biasing to achieve the lowest standby current consumption. The device also integrates current limit protection, smart thermal shutdown protection, and soft-start. Smart thermal shutdown protects the device against overheating. Soft-start minimize start-up input current surges without causing excessive device turn-on time. Power Control The ISL9007 has a shutdown pin (SD) to control power to the LDO output. When SD is high, the device is in shutdown mode. In this condition, all on-chip circuits are off, and the device draws minimum current, typically less than 0.1µA. When the SD pin goes low, the device first polls the output of the UVLO detector to ensure that the VIN voltage is at least 2.1V (typical). Once verified, the device initiates a start-up sequence. During the start-up sequence, trim settings are first read and latched. Then, sequentially, the bandgap, reference voltage and current generation circuitry turn-on. Once the references are stable, the LDO powers up. During operation, whenever the VIN voltage drops below about 1.84V, the ISL9007 immediately disables both LDO outputs. When VIN rises back above 2.1V (assuming the SD pin is low), the device re-initiates its start-up sequence and LDO operation will resume automatically. Reference Generation The reference generation circuitry includes a trimmed bandgap, a trimmed voltage reference divider, a trimmed current reference generator, and an RC noise filter. LDO Regulation and Programmable Output Divider The LDO Regulator is implemented with a high-gain operational amplifier driving a PMOS pass transistor. The design of the ISL9000 provides a regulator that has low quiescent current, fast transient response, and overall stability across all operating and load current conditions. LDO stability is guaranteed for a 1µF to 10µF output capacitor that has a tolerance better than 20% and ESR less than 200mΩ. The design is performance-optimized for a 1µF capacitor. Unless limited by the application, use of an output capacitor value above 4.7µF is not recommended as LDO performance improvement is minimal. Soft-start circuitry integrated into each LDO limits the initial ramp-up rate to about 30µs/V to minimize current surge. The ISL9007 provides short-circuit protection by limiting the output current to about 500mA. The LDO uses an independently trimmed 1V reference as its input. An internal resistor divider drops the LDO output voltage down to 1V. This is compared to the 1V reference for regulation. The resistor division ratio is programmed in the factory to one of the following output voltages: 3.3, 2.85V, 2.8V, and 2.5V. Overheat Detection The bandgap outputs a proportional-to-temperature current that is indicative of the temperature of the silicon. This current is compared with references to determine if the device is in danger of damage due to overheating. When the die temperature reaches about +145°C, the LDO momentarily shuts down until the die cools sufficiently. In the overheat condition, if the LDO sources more than 50mA it will be shut off. Once the die temperature falls back below about +110°C, the disabled LDO is re-enabled and soft-start automatically takes place. The bandgap generates a zero temperature coefficient (TC) voltage for the regulator reference and other voltage references required for current generation and over-temperature detection. A current generator provides references required for adaptive biasing as well as references for LDO output current limit and thermal shutdown determination. 7 FN9218.3 February 11, 2014 ISL9007 Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you have the latest revision. DATE REVISION CHANGE February 11, 2014 FN9218.3 Converted to New Intersil Template and applied Standards as follows: Moved Typical Application and Block Diagram graphics from page 6 to page 1 Moved Pin Configuration from page 1 to page 2 and moved pin description from page 6 to page 1 Updated ordering information as follows: added new part ISL9007IUCZ and Eval board added Note references and updated note for Tape and Reel Specifications. updated lead finish in order to match Intrepid. added MSL note. Updated Thermal Information as follows: added Tjc changed note which reference package from High effective “direct attach” to High effective no direct attach. changed Tjc note from underside to top (note there was no Tjc note in prior version). Updated Electrical Specifications as follows: added Boldface limits note to conditions. Bolded MIN and MAX values in columns. Added Note reference in MIN and MAX columns for over-temp note. Replaced Note which read “Parts are 100% tested...” with “Parameters with MIN and MAX limits...” Updated POD M8.118 by adding land pattern and moving dimensions from table onto drawing. Added Rev History and Products Information. October 30, 2008 FN9218.2 Corrected the units in Figure 15 on page 5 to be kHz. March 27, 2008 FN9218.1 Added VO pin at 3.6V to Abs Max section. Added last sentence to paragraph above pinout "Other output voltage options may be available upon request". Applied Intersil Standards as follows: Updated pb-free bullet in features indication pb-free only parts, Updated notes in ordering information (tape and reel reference note and pb-free note to match lead finish), Added pb-free reflow link to Thermal Information, Replaced caution statement with legal's suggested verbiage Added Note to electrical specs indicating parts tested 100% at 25 degrees for Min and Max. October 13, 2005 FN9218.0 Initial Release. About Intersil Intersil Corporation is a leader in the design and manufacture of high-performance analog, mixed-signal and power management semiconductors. The company's products address some of the largest markets within the industrial and infrastructure, personal computing and high-end consumer markets. For more information about Intersil, visit our website at www.intersil.com. For the most updated datasheet, application notes, related documentation and related parts, please see the respective product information page found at www.intersil.com. You may report errors or suggestions for improving this datasheet by visiting www.intersil.com/en/support/ask-an-expert.html. Reliability reports are also available from our website at http://www.intersil.com/en/support/qualandreliability.html#reliability For additional products, see www.intersil.com/product_tree Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 8 FN9218.3 February 11, 2014 ISL9007 Package Outline Drawing M8.118 8 LEAD MINI SMALL OUTLINE PLASTIC PACKAGE Rev 3, 3/10 5 3.0±0.05 A DETAIL "X" D 8 1.10 MAX SIDE VIEW 2 0.09 - 0.20 4.9±0.15 3.0±0.05 5 0.95 REF PIN# 1 ID 1 2 B 0.65 BSC GAUGE PLANE TOP VIEW 0.55 ± 0.15 0.25 3°±3° 0.85±010 H DETAIL "X" C SEATING PLANE 0.25 - 0.036 0.08 M C A-B D 0.10 ± 0.05 0.10 C SIDE VIEW 1 (5.80) NOTES: (4.40) (3.00) 1. Dimensions are in millimeters. (0.65) (0.40) (1.40) TYPICAL RECOMMENDED LAND PATTERN 9 2. Dimensioning and tolerancing conform to JEDEC MO-187-AA and AMSEY14.5m-1994. 3. Plastic or metal protrusions of 0.15mm max per side are not included. 4. Plastic interlead protrusions of 0.15mm max per side are not included. 5. Dimensions are measured at Datum Plane "H". 6. Dimensions in ( ) are for reference only. FN9218.3 February 11, 2014