Low Noise LDO

® ISL9003A Data Sheet December 21, 2006 FN6299.1 Low Noise LDO with Low IQ, High PSRR ISL9003A is a high performance single low noise, high PSRR LDO that delivers a continuous 150mA of load current. It has a low standby current and is stable with 1μF of MLCC output capacitance with an ESR of up to 200mΩ. The ISL9003A has a very high PSRR of 90dB and output noise is 20μVRMS (typical). When coupled with a no load quiescent current of 31μA (typical), and 0.5μA shutdown current, the ISL9003A is an ideal choice for portable wireless equipment. The ISL9003A comes in many fixed voltage options with ±1.8% output voltage accuracy over temperature, line and load. Other output voltage options are available on request. Features • High performance LDO with 150mA continuous output • Excellent transient response to large current steps • Excellent load regulation: <0.1% voltage change across full range of load current • Very high PSRR: >90dB @ 1kHz • Wide input voltage capability: 2.3V to 6.5V • Extremely low quiescent current: 31μA • Low dropout voltage: typically 200mV @ 150mA • Low output noise: typically 20μVRMS @ 100μA (1.5V) • Stable with 1µF to 4.7μF ceramic capacitors • Shutdown pin turns off LDO with 1μA (max) standby current • Soft-start limits input current surge during enable • Current limit and overheat protection Pinouts ISL9003A (5 LD SC-70) TOP VIEW VIN GND EN 1 2 3 4 CBYP 5 VO • ±1.8% accuracy over all operating conditions • 5 Ld SC-70 package or 6 Ld μTDFN package • -40°C to +85°C operating temperature range • Pb-free plus anneal available (RoHS compliant) ISL9003A (6 LD 1.6x1.6 μTDFN ) TOP VIEW VO GND CBYP 1 2 3 6 5 4 VIN NC EN Applications • PDAs, cell phones and smart phones • Portable instruments, MP3 players • Handheld devices including medical handhelds 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2006. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ISL9003A Ordering Information PART NUMBER (Note 2) ISL9003AIENZ-T ISL9003AIEMZ-T ISL9003AIEKZ-T ISL9003AIEJZ-T ISL9003AIEHZ-T ISL9003AIEFZ-T ISL9003AIECZ-T ISL9003AIEBZ-T ISL9003AIRUBZ-T ISL9003AIRUCZ-T ISL9003AIRUFZ-T ISL9003AIRUHZ-T ISL9003AIRUJZ-T ISL9003AIRUKZ-T ISL9003AIRUMZ-T ISL9003AIRUNZ-T NOTES: 1. For other output voltages, contact Intersil Marketing. 2. 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. PART MARKING CBK CBJ CCE CCD CCC CCB CBY CBW L G F H J K M N VO VOLTAGE (V) (Note 1) 3.3 3.0 2.85 2.8 2.75 2.5 1.8 1.5 1.5 1.8 2.5 2.75 2.8 2.85 3.0 3.30 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 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 PACKAGE Tape and Reel (Pb-free) 5 Ld SC-70 5 Ld SC-70 5 Ld SC-70 5 Ld SC-70 5 Ld SC-70 5 Ld SC-70 5 Ld SC-70 5 Ld SC-70 6 Ld µTDFN 6 Ld µTDFN 6 Ld µTDFN 6 Ld µTDFN 6 Ld µTDFN 6 Ld µTDFN 6 Ld µTDFN 6 Ld µTDFN PKG. DWG. # P5.049 P5.049 P5.049 P5.049 P5.049 P5.049 P5.049 P5.049 L6.1.6x1.6A L6.1.6x1.6A L6.1.6x1.6A L6.1.6x1.6A L6.1.6x1.6A L6.1.6x1.6A L6.1.6x1.6A L6.1.6x1.6A 2 FN6299.1 December 21, 2006 ISL9003A Absolute Maximum Ratings Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.1V All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VIN+0.3V) Thermal Information Thermal Resistance θJA (°C/W) 5 Ld SC-70 Package (Note 3) . . . . . . . . . . . . . . . . . 231 6 Ld μTDFN Package (Note 4) . . . . . . . . . . . . . . . . 125 Junction Temperature Range . . . . . . . . . . . . . . . . .-40°C to +125°C Operating Temperature Range . . . . . . . . . . . . . . . . .-40°C to +85°C Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C Recommended Operating Conditions Ambient Temperature Range (TA) . . . . . . . . . . . . . . .-40°C to +85°C Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 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. NOTE: 3. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details. 4. 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. 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; CBYP = 0.01μF SYMBOL TEST CONDITIONS MIN TYP MAX UNITS PARAMETER DC CHARACTERISTICS Supply Voltage Ground Current VIN IDD Output Enabled; IO = 0μA; VIN < 4.2V Output Enabled; IO = 0μA; Full voltage range 2.3 31 6.5 40 57 0.5 1.2 2.3 2.0 +0.7 +0.8 +1.8 V μA μA μA V V % % % mA Shutdown Current UVLO Threshold IDDS VUV+ VUV1.9 1.6 Initial accuracy at VIN = VO+0.5V, IO = 10mA, TJ = +25°C VIN = VO+0.5V to 6.5V, IO = 10μA to150mA, TJ = +25°C VIN = VO+0.5V to 6.5V, IO = 10μA to 150mA, TJ = -40°C to +125°C -0.7 -0.8 -1.8 150 175 IO = 150mA; VO < 2.5V IO = 150mA; 2.5V ≤ VO ≤ 2.8V IO = 150mA; 2.8V < VO 2.1 1.8 Regulation Voltage Accuracy Maximum Output Current Internal Current Limit Drop-out Voltage (Note 6) IMAX ILIM VDO1 VDO2 VDO3 Continuous 265 300 250 200 140 110 355 500 400 325 mA mV mV mV °C °C Thermal Shutdown Temperature TSD+ TSD- AC CHARACTERISTICS Ripple Rejection (Note 5) IO = 10mA, VIN = 2.8V(min), VO = 1.8V, CBYP = 0.1µF @ 1kHz @ 10kHz @ 100kHz Output Noise Voltage (Note 5) VO = 1.5V, TA = +25°C, CBYP = 0.1µF BW = 10Hz to 100kHz, IO = 100μA BW = 10Hz to 100kHz, IO = 10mA DEVICE START-UP CHARACTERISTICS Device Enable TIme LDO Soft-start Ramp Rate TEN TSSR Time from assertion of the EN 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 20 30 μVRMS μVRMS 90 70 50 dB dB dB 3 FN6299.1 December 21, 2006 ISL9003A 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; CBYP = 0.01μF (Continued) SYMBOL TEST CONDITIONS MIN TYP MAX UNITS PARAMETER EN PIN CHARACTERISTICS Input Low Voltage Input High Voltage Input Leakage Current Pin Capacitance NOTES: VIL VIH IIL, IIH CPIN Informative -0.3 1.4 0.4 VIN+0.3 0.1 5 V V μA pF 5. Guaranteed by design and characterization 6. VO = 0.98 * VO(NOM); Valid for VO greater than 1.85V. Typical Performance Curves 0.8 0.6 OUTPUT VOLTAGE, VO (%) 0.4 0.2 +25°C 0.0 +85°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) -40°C VO = 3.3V ILOAD = 0mA OUTPUT VOLTAGE CHANGE (%) 0.1 IO = 0mA 0.0 0.2 VO = 3.3V +25°C -0.1 IO = 75mA IO = 150mA -0.2 -0.3 -0.4 3.3 3.8 4.3 4.8 5.3 5.8 6.3 INPUT VOLTAGE (V) FIGURE 1. OUTPUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT) FIGURE 2. OUTPUT VOLTAGECHANGE (%) vs INPUT VOLTAGE (3.3V OUTPUT) 1.0 0.8 OUTPUT VOLTAGE CHANGE (%) 0.6 0.4 0.2 -40°C 0.0 -0.2 -0.4 -0.6 -0.8 -1.0 0 25 50 75 100 125 LOAD CURRENT - IO (mA) 150 175 +25°C VIN = 3.8V VO = 3.3V OUTPUT VOLTAGE (%) 0.10 0.08 0.06 0.04 0.02 0.00 -0.02 IO = 150mA -0.04 -0.06 -0.08 -0.10 -40 -25 0 25 TEMPERATURE (°C) 55 85 IO = 75mA IO = 0mA VIN = 3.8V VO = 3.3V +85°C FIGURE 3. OUTPUT VOLTAGE vs LOAD CURRENT FIGURE 4. OUTPUT VOLTAGE vs TEMPERATURE 4 FN6299.1 December 21, 2006 ISL9003A Typical Performance Curves (Continued) 3.4 3.3 OUTPUT VOLTAGE, VO (V) VO = 3.3V +25°C IO = 0mA IO = 75mA IO = 150mA OUTPUT VOLTAGE, VO (V) 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.6 3.1 3.6 4.1 4.6 5.1 INPUT VOLTAGE (V) 5.6 6.1 6.6 2.3 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 INPUT VOLTAGE (V) 2.8 2.9 2.7 IO = 0mA 2.6 IO = 75mA IO = 150mA VO = 2.8V +25°C 2.4 2.5 FIGURE 5. DROPOUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT) FIGURE 6. DROPOUT VOLTAGE vs INPUT VOLTAGE (2.8V OUTPUT) 250 225 200 DROP OUT VOLTAGE, VDO (mV) VO = 3.3V +25°C +85°C DROP OUT VOLTAGE, VDO (mV) 200 175 150 125 100 75 50 25 150 VO = 2.8V 100 VO = 3.3V -40°C 50 0 0 25 50 75 100 125 OUTPUT LOAD (mA) 150 175 0 0 25 50 75 100 125 150 175 OUTPUT LOAD (mA) FIGURE 7. DROPOUT VOLTAGE vs LOAD CURRENT FIGURE 8. DROPOUT VOLTAGE vs LOAD CURRENT 140 120 GROUND CURRENT (µA) 100 80 60 40 20 0 0 25 50 75 100 125 150 175 LOAD CURRENT (mA) +85°C VIN = 3.8V VO = 3.3V 60 50 GROUND CURRENT (µA) +85°C 40 +25°C 30 +25°C 20 10 -40°C VO = 3.3V IO = 0µA -40°C 0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 INPUT VOLTAGE (V) FIGURE 9. GROUND CURRENT vs INPUT VOLTAGE FIGURE 10. GROUND CURRENT vs LOAD 5 FN6299.1 December 21, 2006 ISL9003A Typical Performance Curves (Continued) 100 90 80 70 60 50 40 30 20 -40 -30 -20 -10 IL = 75mA VIN = 3.8V VO = 3.3V VEN (V) VO(V) IL = 150mA VIN = 5.0V VO = 3.3V IL = 150mA CL = 1µF GROUND CURRENT (µA) 3 2 1 0 5 0 IL = 0mA 0 10 20 30 40 50 TEMPERATURE (°C) 60 70 80 90 0 10