Dual LDO

® ISL9011A Data Sheet January 30, 2007 FN6437.0 Dual LDO with Low Noise, Low IQ, and High PSRR ISL9011A is a high performance dual LDO capable of sourcing 150mA current from Channel 1 and 300mA from Channel 2. The device has a low standby current and highPSRR and is stable with output capacitance of 1μF to 10μF with ESR of up to 200mΩ. A reference bypass pin allows an external capacitor for adjusting a noise filter for low noise and high PSRR applications. The quiescent current is typically only 45µA with both LDO’s enabled and active. Separate enable pins control each individual LDO output. When both enable pins are low, the device is in shutdown, typically drawing less than 0.1μA. Several combinations of voltage outputs are standard. Others are available on request. Output voltage options for each LDO range from 1.2V to 3.6V. Features • Integrates two high performance LDOs - VO1 - 150mA output - VO2 - 300mA output • Excellent transient response to large current steps • Excellent load regulation: <1% voltage change across full range of load current • High PSRR: 70dB @ 1kHz • Wide input voltage capability: 2.3V to 6.5V • Extremely low quiescent current: 45µA (both LDOs active) • Low dropout voltage: typically 120mV @ 150mA • Low output noise: typically 30µVRMS @ 100µA (1.5V) • Stable with 1µF to 10µF ceramic capacitors • Separate enable pins for each LDO • Soft-start to limit input current surge during enable • Current limit and overheat protection Pinout ISL9011A (10 LD 3x3 DFN) TOP VIEW • ±1.8% accuracy over all operating conditions • Tiny 10 Ld 3mmx3mm DFN package • -40°C to +85°C operating temperature range 10 VO1 9 8 7 6 VO2 NC NC GND VIN EN1 EN2 CBYP NC 1 2 3 4 5 • Pin compatible with Micrel MIC2211 • Pb-free plus anneal available (RoHS compliant) 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 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. ISL9011A Ordering Information PART NUMBER (Notes 1, 2, 3) ISL9011AIRNNZ ISL9011AIRNJZ ISL9011AIRNFZ ISL9011AIRNCZ ISL9011AIRMNZ ISL9011AIRMMZ ISL9011AIRMGZ ISL9011AIRLLZ ISL9011AIRKNZ ISL9011AIRKKZ ISL9011AIRKJZ ISL9011AIRKFZ ISL9011AIRKPZ ISL9011AIRKCZ ISL9011AIRJNZ ISL9011AIRJMZ ISL9011AIRJRZ ISL9011AIRJCZ ISL9011AIRJBZ ISL9011AIRGPZ ISL9011AIRGCZ ISL9011AIRFJZ ISL9011AIRFDZ ISL9011AIRFCZ ISL9011AIRPLZ ISL9011AIRPPZ ISL9011AIRCJZ ISL9011AIRCCZ ISL9011AIRBLZ ISL9011AIRBJZ ISL9011AIRBCZ ISL9011AIRBBZ NOTES: 1. Add -T to part number for tape and reel. 2. For availability and lead time of devices with voltage combinations not listed in the table, contact Intersil Marketing. 3. 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 DGPA DGNA DGMA DGLA DGKA DGJA DGHA DGGA DGEA DGDA DGCA DGBA DGFA DFYA DFVA DFTA DWFA DFSA DFRA DFPA DFNA DFMA DFLA DFKA DGRA DGSA DFJA DFHA DFGA DFFA DFEA DFDA VO1 VOLTAGE (V) 3.3 3.3 3.3 3.3 3.0 3.0 3.0 2.9 2.85 2.85 2.85 2.85 2.85 2.85 2.8 2.8 2.8 2.8 2.8 2.7 2.7 2.5 2.5 2.5 1.85 1.85 1.8 1.8 1.5 1.5 1.5 1.5 VO2 VOLTAGE (V) 3.3 2.8 2.5 1.8 3.3 3.0 2.7 2.9 3.3 2.85 2.8 2.5 1.85 1.8 3.3 3.0 2.6 1.8 1.5 1.85 1.8 2.8 2.0 1.8 2.9 1.85 2.8 1.8 2.9 2.8 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 -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 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 PACKAGE (Pb-free) 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN PKG. DWG. # L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C 2 FN6437.0 January 30, 2007 ISL9011A Absolute Maximum Ratings Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.1V All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (VIN+0.3)V Thermal Information Thermal Resistance (Notes 4, 5) θJA (°C/W) θJC (°C/W) 3x3 DFN Package . . . . . . . . . . . . . . . . 50 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: 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. 5. 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+1.0V) 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 Quiescent condition: IO1 = 0µA; IO2 = 0µA IDD1 IDD2 One LDO active Both LDO active @ +25°C 2.3 6.5 V 25 45 0.1 1.9 1.6 2.1 1.8 40 60 1.0 2.3 2.0 +1.8 µA µA µA V V % %/V % % mA mA Shutdown Current UVLO Threshold IDDS VUV+ VUV- Regulation Voltage Accuracy Line Regulation Load Regulation Variation from nominal voltage output, VIN = VO +0.5 to 5.5V, TJ = -40°C to +125°C VIN = (VOUT +1.0V relative to highest output voltage) to 5.5V IOUT = 100µA to 150mA (VO1 and VO2) IOUT = 100µA to 300mA (VO2) -1.8 -0.2 0 0.1 0.2 0.7 1.0 Maximum Output Current IMAX VO1: Continuous VO2: Continuous 150 300 350 475 125 300 250 200 145 110 600 200 500 400 325 Internal Current Limit Dropout Voltage (Note 6) ILIM VDO1 VDO2 VDO3 VDO4 IO = 150mA; VO > 2.1V (VO1) IO = 300mA; VO < 2.5V (VO2) IO = 300mA; 2.5V ≤ VO ≤ 2.8V (VO2) IO = 300mA; VO > 2.8V (VO2) mA mV mV mV mV °C °C Thermal Shutdown Temperature TSD+ TSD- AC CHARACTERISTICS Ripple Rejection IO = 10mA, VIN = 2.8V(min), VO = 1.8V, CBYP = 0.1μF @ 1kHz @ 10kHz @ 100kHz Output Noise Voltage IO = 100μA, VO = 1.5V, TA = +25°C, CBYP = 0.1μF BW = 10Hz to 100kHz 70 55 40 30 dB dB dB µVRMS 3 FN6437.0 January 30, 2007 ISL9011A 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+1.0V) 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 DEVICE START-UP CHARACTERISTICS Device Enable TIme LDO Soft-Start Ramp Rate EN1, EN2 PIN CHARACTERISTICS Input Low Voltage Input High Voltage Input Leakage Current Pin Capacitance NOTE: 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 startup 250 30 500 60 µs µs/V 4 FN6437.0 January 30, 2007 ISL9011A 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 IO = 0mA VO1 = 3.3V 3.3 OUTPUT VOLTAGE, VO (V) 3.2 IO = 150mA 3.1 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 (VO1 = 3.3V) 350 2.9 IO = 0mA 2.8 DROPOUT VOLTAGE, VDO (mV) OUTPUT VOLTAGE, VO (V) VO2 = 2.8V 300 250 VO2 = 2.8V