Dual LDO

® ISL9000A Data Sheet January 10, 2007 FN6391.0 Dual LDO with Low Noise, Very High PSRR, and Low IQ ISL9000A is a high performance dual LDO capable of sourcing 300mA current from each output. It has a low standby current and very high PSRR and is stable with output capacitance of 1μF to 10μF with ESR of up to 200mΩ. The device integrates an individual Power-On-Reset (POR) function for each output. The POR delay for VO2 can be externally programmed by connecting a timing capacitor to the CPOR pin. The POR delay for VO1 is internally fixed at approximately 2ms. A reference bypass pin is also provided for connecting a noise filtering capacitor for low noise and high-PSRR applications. The quiescent current is typically only 42μA 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 300mA high performance LDO’s • Excellent Transient Response To large current steps • ±1.8% accuracy over all operating conditions • Excellent load regulation: < 0.1% voltage change across full range of load current • Low output noise: typically 30μVrms @ 100μA (1.5V) • Very high PSRR: 90dB @ 1kHz • Extremely low quiescent current: 42μA (both LDOs active) • Wide input voltage capability: 2.3V to 6.5V • Low dropout voltage: typically 200mV @ 300mA • Stable with 1μF-10μF ceramic capacitors • Separate enable and POR pins for each LDO • Soft-start and staged turn-on to limit input current surge during enable • Current limit and overheat protection • Tiny 10 Ld 3x3mm DFN package Pinout ISL9000A (10 LD 3X3 DFN) TOP VIEW • -40°C to +85°C operating temperature range • Pb-free plus anneal available (RoHS compliant) Applications 10 VO1 9 8 7 6 VO2 POR2 POR1 GND VIN 1 EN1 2 EN2 3 CBYP 4 CPOR 5 • PDAs, Cell Phones and Smart Phones • Portable Instruments, MP3 Players • Handheld Devices including Medical Handheld 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. ISL9000A Ordering Information PART NUMBER (Notes 1, 2, 3) ISL9000AIRNNZ ISL9000AIRNJZ ISL9000AIRNFZ ISL9000AIRNCZ ISL9000AIRMNZ ISL9000AIRMMZ ISL9000AIRMGZ ISL9000AIRLLZ ISL9000AIRKNZ ISL9000AIRKKZ ISL9000AIRKJZ ISL9000AIRKFZ ISL9000AIRKPZ ISL9000AIRKCZ ISL9000AIRJNZ ISL9000AIRJMZ ISL9000AIRJRZ ISL9000AIRJCZ ISL9000AIRJBZ ISL9000AIRGPZ ISL9000AIRGCZ ISL9000AIRFJZ ISL9000AIRFDZ ISL9000AIRFCZ ISL9000AIRPLZ ISL9000AIRPPZ ISL9000AIRCJZ ISL9000AIRCCZ ISL9000AIRBLZ ISL9000AIRBJZ ISL9000AIRBCZ ISL9000AIRBBZ NOTES: 1. Add -T to part number for tape and reel. 2. For other output voltages, 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 DEYA DEWA DEVA DETA DESA DERA DEPA DENA DELA DEKA DEJA DEHA DEMA DEGA DEEA DEDA DEFA DECA DEBA DDYA DDWA DDVA DDTA DDSA DFBA DFCA DDRA DDPA DDNA DDMA DDLA DDKA 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) TEMP RANGE (°C) 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 -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 FN6391.0 January 10, 2007 ISL9000A Absolute Maximum Ratings Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.1V All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (VIN+0.3)V Thermal Information Thermal Resistance (Notes 1, 2) 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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 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. NOTES: 1. 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. 2. 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 6.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF; CBYP = 0.01µF; CPOR = 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 42 0.1 1.9 1.6 2.1 1.8 32 52 1.0 2.3 2.0 +0.7 +0.8 +1.8 μA 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 4) 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 3) IO = 10mA, VIN = 2.8V(min), VO = 1.8V, CBYP = 0.1µF @ 1kHz @ 10kHz @ 100kHz Output Noise Voltage (Note 3) 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 IO = 100µA, VO = 1.5V, TA = 25°C, CBYP = 0.1µF BW = 10Hz to 100kHz 90 70 50 30 dB dB dB μVrms 3 FN6391.0 January 10, 2007 ISL9000A 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; CPOR = 0.01µF (Continued) SYMBOL TSSR TEST CONDITIONS Slope of linear portion of LDO output voltage ramp during start-up MIN TYP 30 MAX 60 UNITS μs/V PARAMETER LDO Soft-Start Ramp Rate EN1, EN2 PIN CHARACTERISTICS Input Low Voltage Input High Voltage Input Leakage Current Pin Capacitance VIL VIH IIL, IIH CPIN Informative -0.3 1.4 0.5 VIN+0.3 0.1 5 V V μA pF POR1, POR2 PIN CHARACTERISTICS POR1, POR2 Thresholds VPOR+ VPORPOR1 Delay TP1LH TP1HL POR2 Delay TP2LH TP2HL POR1, POR2 Pin Output Low Voltage POR1, POR2 Pin Internal Pull-Up Resistance NOTES: 3. Guaranteed by design and characterization. 4. VOx = 0.98 * VOx(NOM); Valid for VOx greater than 1.85V. VOL RPOR @IOL = 1.0mA 78 100 CPOR = 0.01μF 100 As a percentage of nominal output voltage 91 87 1.0 94 90 2.0 25 200 25 0.2 180 300 97 93 3.0 % % ms μs ms μs V kΩ EN1 EN2 TEN VPOR+ VPOR+