LDO

® ISL9005A Data Sheet March 14, 2007 FN6452.0 LDO with Low ISUPPLY, High PSRR ISL9005A is a high performance Low Dropout linear regulator capable of sourcing 300mA current. It has a low standby current and high-PSRR and is stable with output capacitance of 1µF to 10µF with ESR of up to 200mΩ. The ISL9005A has a high PSRR of 75dB and output noise less than 45µVRMS. When coupled with a no load quiescent current of 50µA (typical) and 0.1µA shutdown current, the ISL9005A is an ideal choice for portable wireless equipment. Several different fixed voltage outputs are standard. Other output voltage options for the LDO may be available on request and range from 1.35V to 3.6V. Features • 300mA high performance LDO • Excellent transient response to large current steps • Excellent load regulation: <0.1% voltage change across full range of load current • High PSRR: 75dB @ 1kHz • Wide input voltage capability: 2.3V to 6.5V • Very low quiescent current: 50μA • Low dropout voltage: typically 200mV @ 300mA • Low output noise: typically 45µVRMS @ 100µA (1.5V) • Stable with 1µF to 10µF ceramic capacitors Pinout ISL9005A (8 LD DFN 2x3) TOP VIEW VIN EN NC NC 1 2 3 4 8 VO 7 NC 6 NC 5 GND • Soft-start to limit input current surge during enable • Current limit and overheat protection • ±1.8% accuracy over all operating conditions • Tiny 2mmx3mm 8 Ld DFN package • -40°C to +85°C operating temperature range • Pb-free plus anneal available (RoHS compliant) Applications • PDAs, cell phones and smart phones • Portable instruments, MP3 players • Handheld devices including medical handhelds Ordering Information PART NUMBER (Note 1) ISL9005AIRNZ-T ISL9005AIRMZ-T ISL9005AIRLZ-T ISL9005AIRKZ-T ISL9005AIRJZ-T ISL9005AIRRZ-T ISL9005AIRFZ-T ISL9005AIRCZ-T ISL9005AIRBZ-T NOTES: 1. Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 2. For other output voltages, contact Intersil Marketing. PART MARKING EBV EBT EBS EBR EBP EBW EBN EBM EBL VO VOLTAGE (V) (Note 2) 3.3 3.0 2.9 2.85 2.8 2.6 2.5 1.8 1.5 TEMP RANGE (°C) -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 PACKAGE (Pb-Free) 8 Ld DFN 2x3 Tape and Reel 8 Ld DFN 2x3 Tape and Reel 8 Ld DFN 2x3 Tape and Reel 8 Ld DFN 2x3 Tape and Reel 8 Ld DFN 2x3 Tape and Reel 8 Ld DFN 2x3 Tape and Reel 8 Ld DFN 2x3 Tape and Reel 8 Ld DFN 2x3 Tape and Reel 8 Ld DFN 2x3 Tape and Reel PKG. DWG. # L8.2x3 L8.2x3 L8.2x3 L8.2x3 L8.2x3 L8.2x3 L8.2x3 L8.2x3 L8.2x3 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL9005A Absolute Maximum Ratings Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.1V All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (VIN + 0.3)V ESD Rating Human Body Model (Per MIL-STD-883 Method 3015.7) . . .2500V Machine Model (Per EIAJ ED-4701 Method C-111) . . . . . . . .200V Thermal Information Thermal Resistance (Notes 3, 4) θJA (°C/W) θJC (°C/W) 8 Ld DFN 2x3 Package . . . . . . . . . . . . 69 10 Junction Temperature Range . . . . . . . . . . . . . . . . .-40°C to +125°C Operating Temperature Range . . . . . . . . . . . . . . . . .-40°C to +85°C Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300°C Recommended Operating Conditions Ambient Temperature Range (TA) . . . . . . . . . . . . . . .-40°C to +85°C Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3V to 6.5V CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTES: 3. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 4. θJC, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379. 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 5.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF SYMBOL TEST CONDITIONS MIN TYP MAX UNITS PARAMETER DC CHARACTERISTICS Supply Voltage Ground Current VIN Quiescent condition: IO = 0μA IDD LDO active LDO disabled @ +25°C 2.3 6.5 V 50 0.1 1.9 1.6 2.1 1.8 75 1.0 2.3 2.0 +0.7 +0.8 +1.8 µA µA V V % % % mA Shutdown Current UVLO Threshold IDDS VUV+ VUV- Regulation Voltage Accuracy Initial accuracy at VIN = VO + 0.5V, IO = 10mA, TJ = +25°C VIN = VO + 0.5V to 5.5V, IO = 10µA to 300mA, TJ = +25°C VIN = VO + 0.5V to 5.5V, IO = 10µA to 300mA, TJ = -40°C to +125°C -0.7 -0.8 -1.8 300 350 475 300 250 200 145 110 Maximum Output Current Internal Current Limit Dropout Voltage (Note 6) IMAX ILIM VDO1 VDO2 VDO3 Continuous 600 500 400 325 mA mV mV mV °C °C IO = 300mA; VO < 2.5V IO = 300mA; 2.5V ≤ VO ≤ 2.8V IO = 300mA; VO > 2.8V Thermal Shutdown Temperature TSD+ TSD- AC CHARACTERISTICS Ripple Rejection (Note 5) IO = 10mA, VIN = 2.8V (min), VO = 1.8V @ 1kHz @ 10kHz @ 100kHz Output Noise Voltage (Note 5) IO = 100µA, VO = 1.5V, TA = +25°C BW = 10Hz to 100kHz 75 60 40 45 dB dB dB µVRMS 2 FN6452.0 March 14, 2007 ISL9005A 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 5.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF (Continued) SYMBOL TEST CONDITIONS MIN TYP MAX UNITS PARAMETER DEVICE START-UP CHARACTERISTICS Device Enable TIme LDO Soft-start Ramp Rate EN PIN CHARACTERISTICS Input Low Voltage Input High Voltage Input Leakage Current Pin Capacitance NOTES: 5. Guaranteed by characterization. 6. VOx = 0.98*VOx(NOM); Valid for VOx greater than 1.85V. VIL VIH IIL, IIH CPIN Informative 5 -0.3 1.4 0.5 VIN + 0.3 0.1 V V µA pF tEN tSSR Time from assertion of the ENx pin to when the output voltage reaches 95% of the VO (nom) Slope of linear portion of LDO output voltage ramp during start-up 250 30 500 60 µs µs/V 3 FN6452.0 March 14, 2007 ISL9005A Typical Performance Curves 0.8 0.6 OUTPUT VOLTAGE, VO (%) 0.4 0.2 -40°C 0.0 +25°C -0.2 -0.4 -0.6 -0.8 3.4 3.8 4.2 4.6 5.0 5.4 5.8 6.2 6.6 INPUT VOLTAGE (V) +85°C VO = 3.3V ILOAD = 0mA OUTPUT VOLTAGE CHANGE (%) 0.10 0.08 0.06 0.04 0.02 0.00 -0.02 +85°C -0.04 -0.06 -0.08 -0.10 0 50 100 150 200 250 300 350 400 +25°C -40°C VIN = 3.8V VO = 3.3V LOAD CURRENT - IO (mA) FIGURE 1. OUTPUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT) 0.10 0.08 OUTPUT VOLTAGE CHANGE (%) 0.06 0.04 0.02 0.00 -0.02 -0.04 -0.06 -0.08 -0.10 -40 VIN = 3.8V VO = 3.3V ILOAD = 0mA FIGURE 2. OUTPUT VOLTAGE CHANGE vs LOAD CURRENT 3.4 VO = 3.3V 3.3 OUTPUT VOLTAGE, VO (V) IO = 0mA 3.2 IO = 150mA 3.1 IO = 300mA 3.0 2.9 2.8 -25 -10 5 20 35 50 65 TEMPERATURE (°C) 80 95 110 125 3.1 3.6 4.1 4.6 5.1 5.6 6.1 6.5 INPUT VOLTAGE (V) FIGURE 3. OUTPUT VOLTAGE CHANGE vs TEMPERATURE FIGURE 4. OUTPUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT) 350 300 250 VO = 2.8V 200 VO = 3.3V 150 100 50 0 2.9 IO = 0mA VO = 2.8V DROPOUT VOLTAGE, VDO (mV) 4.6 5.1 5.6 6.1 6.5 2.8 OUTPUT VOLTAGE, VO (V) 2.7 IO = 150mA 2.6 IO = 300mA 2.5 2.4 2.3 2.6 3.1 3.6 4.1 0 50 100 INPUT VOLTAGE (V) 150 200 250 OUTPUT LOAD (mA) 300 350 400 FIGURE 5. OUTPUT VOLTAGE vs INPUT VOLTAGE (2.8V OUTPUT) FIGURE 6. DROPOUT VOLTAGE vs LOAD CURRENT 4 FN6452.0 March 14, 2007 ISL9005A Typical Performance Curves 350 VO = 3.3V 300 DROPOUT VOLTAGE, VDO (mV) 250 +85°C 200 150 100 50 0 0 50 100 150 200 250 OUTPUT LOAD (mA) 300 350 400 +25°C -40°C GROUND CURRENT (µA) 70 +125°C 60 +25°C 50 -40°C 40 VO = 3.3V 30 (Continued) 80 20 3.0 3.5 4.0 4.58 5.0 5.5 6.0 6.5 INPUT VOLTAGE (V) FIGURE 7. DROPOUT VOLTAGE vs LOAD CURRENT FIGURE 8. GROUND CURRENT vs INPUT VOLTAGE 80 200 180 160 GROUND CURRENT (µA) 140 120 100 -40°C 80 60 40 20 0 0 50 100 150 200 250 300 VIN = 3.8V VO = 3.3V 350 400 +25°C +85°C GROUND CURRENT (µA) 70 60 50 40 30 VIN = 3.8V VO = 3.3V ILOAD = 0µA -10 5 20 35 50 65 TEMPERATURE (°C) 80 95 110 125 20 -40 -25 LOAD CURRENT (mA) FIGURE 9. GROUND CURRENT vs LOAD FIGURE 10. GROUND CURRENT vs TEMPERATURE VO = 2.85V IL = 150mA 5 VOLTAGE (V) 4 3 2 1 0 VO VEN (V) VO (V) VIN 3 2 1 0 5 0 VIN = 5.0V VO = 2.85V IL = 150mA CL = 1µF 0 0.5 1.0 1.5 2.0 2.5 TIME (s) 3.0 3.5 4.0 4.5 5.0 0 0.2 0.4 0.6 0.8 1.0 1.2 TIME (ms) 1.4 1.6 1.8 2.0 FIGURE 11. POWER-UP/POWER-DOWN FIGURE 12. TURN ON/TURN OFF RESPONSE 5 FN6452.0 March 14, 2007 ISL9005A Typical Performance Curves (Continued) VO = 3.3V ILOAD = 300mA CLOAD = 1µF VO = 2.8V ILOAD = 300mA CLOAD = 1µF 4.3V 3.6V 4.2V 3.5V 10mV/DIV 10mV/DIV 400µs/DIV 400µs/DIV FIGURE 13. LINE TRANSIENT RESPONSE, 3.3V OUTPUT FIGURE 14. LINE TRANSIENT RESPONSE, 2.8V OUTPUT 10 SPECTRAL NOISE DENSITY (µV/√Hz) 1.000 VO (25mV/DIV) VO = 1.8V VIN = 2.8V 0.100 VIN = 3.6V VO = 1.8V ILOAD = 10mA 300mA ILOAD 100µA 0.010 CIN = 1µF CLOAD = 1µF 0.001 10 100µs/DIV 100 1k