12 V, 2 A Logic Controlled High-Side Power Switch ADP1290 Data Sheet TYPICAL APPLICATIONS CIRCUIT Low RDSON of 40 mΩ Wide input voltage range: 2.3 V to 13.2 V 2 A continuous operating current, TJ = <85°C 1.2 V logic compatible enable input Low 15 µA quiescent current, VIN = 3.3 V Low 19 µA quiescent current, VIN = 6.5 V Ultralow shutdown current: 2.0 µA at VIN = 6.5 V Ultrasmall 1.0 mm × 1.5 mm, 6-ball, 0.5 mm pitch WLCSP VIN VOUT + – GND ON EN OFF CHARGE PUMP APPLICATIONS ADP1290 Mobile phones Digital cameras and audio devices Portable and battery-powered equipment Figure 1. LOAD 12529-001 FEATURES GENERAL DESCRIPTION The ADP1290 is a high-side load switch designed for operation between 2.3 V and 13.2 V. This load switch provides power domain isolation, helping to extend battery operation. The device contains a low on-resistance, N-channel MOSFET that supports more than 2 A of continuous current and minimizes power loss. In addition, RDSON is constant independent of the VIN voltage. The low 15 µA quiescent current and ultralow shutdown current of 20 µA make the ADP1290 ideal for battery-operated portable equipment. The built-in level shifter for enable logic makes the ADP1290 compatible with many processors and general-purpose input/output (GPIO) controllers. Rev. 0 In addition to operating performance, the ADP1290 occupies minimal printed circuit board (PCB) space with an area of less than 1.5 mm2 and a height of 0.60 mm. The ADP1290 is available in an ultrasmall, 1 mm × 1.5 mm, 6-ball, 0.5 mm pitch WLCSP. Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2014 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADP1290 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation .........................................................................9 Applications ....................................................................................... 1 Applications Information .............................................................. 10 Typical Applications Circuit............................................................ 1 Capacitor Selection .................................................................... 10 General Description ......................................................................... 1 Ground Current .......................................................................... 10 Revision History ............................................................................... 2 Enable Feature ............................................................................ 10 Specifications..................................................................................... 3 Timing ......................................................................................... 11 Timing Diagram ........................................................................... 3 Current and Thermal Overload Precautions .......................... 11 Absolute Maximum Ratings............................................................ 4 Thermal Considerations............................................................ 11 Thermal Resistance ...................................................................... 4 Outline Dimensions ....................................................................... 12 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 12 Pin Configuration and Function Descriptions ............................. 5 Typical Performance Characteristics ............................................. 6 REVISION HISTORY 12/14—Revision 0: Initial Version Rev. 0 | Page 2 of 12 Data Sheet ADP1290 SPECIFICATIONS VIN = 6.5 V, enable input voltage (VEN) = VIN, IOUT = 2 A, TA = 25°C, TJ = −40°C to +105°C for minimum/maximum specifications, unless otherwise noted. Table 1. Parameter INPUT VOLTAGE RANGE EN INPUT EN Input EN Input Pull-Down Current CURRENT Ground (Quiescent) Current Shutdown Current Continuous Operating Current VIN TO VOUT RESISTANCE VOUT TURN ON Turn On Delay Time Turn On Rise Time Turn On Time VOUT TURN OFF Turn Off Delay Time Turn Off Fall Time Turn Off Time SOURCE DRAIN BODY DIODE Diode Forward Current Symbol VIN Test Conditions/Comments Min 2.3 Typ Max 13.2 Unit V 0.4 1000 V V nA VIN = 2.3 V to 13.2 V VIH VIL IEN 1.0 15 IGND VIN = 2.3 V VIN = 3.3 V VIN = 6.5 V VIN = 13.2 V VEN = 0 V, VIN = 6.5 V, output = high impedance VEN = 0 V, output voltage (VOUT) = 0 V, VIN = 2.3 V to 13.2 V VIN = 2.3 V to 13.2 V, TJ = <85°C 10 15 19 20 40 40 40 40 tOFF_DLY tOFF_FALL tOFF VIN = 2.3 V VIN = 3.3 V VIN = 6.5 V VIN = 13.2 V See Figure 2 VIN = 5.5 V, CLOAD = 10 µF VIN = 5.5 V, CLOAD = 10 µF Turn on delay time + turn on rise time See Figure 2 VIN = 5.5 V, CLOAD = 10 µF, IOUT = 20 mA VIN = 5.5 V, CLOAD = 10 µF, IOUT = 20 mA Turn off delay time + turn off fall time ID VIN = 0 V, pulse width = 70 µs, duty cycle < 1%, VOUT = 0.9 V 4 IOFF IOUT RDSON tON_DLY tON_RISE tON TURN OFF DELAY VOUT TURN OFF FALL Figure 2. Timing Diagram Rev. 0 | Page 3 of 12 12529-002 10% TURN ON RISE 70 70 70 70 mΩ mΩ mΩ mΩ 2000 µs µs µs 125 2000 2125 VEN 90% µA µA µA µA µA µA A 2 250 350 600 TIMING DIAGRAM TURN ON DELAY 30 45 45 45 2.0 4.0 µs µs µs 6 A ADP1290 Data Sheet ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Table 2. Parameter VIN to GND VOUT to GND EN to GND Continuous Drain Current TJ = 70°C TJ = 105°C Continuous Diode Current Storage Temperature Range Operating Junction Temperature Range Soldering Conditions Rating −0.3 V to +16.5 V −0.3 V to VIN −0.3 V to +16.5 V ±3 A ±1.6 A −50 mA −65°C to +150°C −40°C to +105°C JEDEC J-STD-020 θJA is specified for the worst case conditions, that is, a device soldered in a circuit board for surface-mount packages. Table 3 Thermal Resistance Package Type 6-Ball, 0.5 mm Pitch WLCSP ESD CAUTION Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. Rev. 0 | Page 4 of 12 θJA 260 ΨJB 58 Unit °C/W Data Sheet ADP1290 1 2 A VIN VOUT B VIN VOUT C EN GND ADP1290 TOP VIEW (Not to Scale) 12529-003 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Figure 3. Pin Configuration Table 4. Pin Function Descriptions Pin No. A1, B1 A2, B2 C1 C2 Mnemonic VIN VOUT EN GND Description Input Voltage. Output Voltage. Enable Input. Drive the EN pin high to turn on the switch. Drive the EN pin low to turn off the switch. Ground. Rev. 0 | Page 5 of 12 ADP1290 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS VIN = 6.5 V, VEN = VIN, CIN = COUT = 0 µF, TA = 25°C, unless otherwise noted. 0.08 100 90 0.07 VIN = 2.3V VIN = 5.0V VIN = 6.5V VIN = 12.0V 80 VOLTAGE DROP (mV) RDSON (Ω) 0.06 0.05 0.04 0.03 ILOAD ILOAD ILOAD ILOAD ILOAD ILOAD 70 60 50 = 50mA = 100mA = 200mA = 500mA = 1000mA = 2000mA 40 30 0.02 12529-004 0 –50 –30 –10 10 30 50 TEMPERATURE (°C) 70 90 10 0 110 2 6 4 10 12 14 Figure 7. Voltage Drop vs. Input Voltage (VIN), Different Load Currents (ILOAD) 10 0.08 9 0.07 VIN = 2.3V VIN = 5.0V VIN = 6.5V VIN = 12.0V 8 GROUND CURRENT (µA) 0.06 0.05 0.04 0.03 0.02 7 6 5 ILOAD = 100mA ILOAD = 200mA ILOAD = 500mA ILOAD = 1000mA ILOAD = 2000mA 4 3 12529-005 0 –50 –30 –10 50 10 30 TEMPERATURE (°C) 70 90 12529-008 2 0.01 1 0 –40 110 Figure 5. RDSON vs. Temperature, 2 A, Different Input Voltages (VIN) –5 25 TEMPERATURE (°C) 85 105 Figure 8. Ground Current vs. Temperature, Different Load Currents, VIN = 2.3 V 0.050 25 ILOAD = 100mA ILOAD = 200mA ILOAD = 500mA ILOAD = 1000mA ILOAD = 2000mA 20 GROUND CURRENT (µA) 0.045 0.040 ILOAD ILOAD ILOAD ILOAD ILOAD ILOAD 0.030 2 4 6 8 10 5 12529-006 0.035 = 50mA = 100mA = 200mA = 500mA = 1000mA = 2000mA 15 10 12 0 –40 14 VIN (V) 12529-009 RDSON (Ω) 8 VIN (V) Figure 4. RDSON vs. Temperature, 50 mA, Different Input Voltages (VIN) RDSON (Ω) 12529-007 20 0.01 –5 25 TEMPERATURE (°C) 85 105 Figure 9. Ground Current vs. Temperature, Different Load Currents, VIN = 6.5 V Figure 6. RDSON vs. Input Voltage (VIN), Different Load Currents (ILOAD) Rev. 0 | Page 6 of 12 Data Sheet ADP1290 1.00 GROUND CURRENT (µA) SHUTDOWN CURRENT (I OFF) (µA) ILOAD = 100mA ILOAD = 200mA ILOAD = 500mA ILOAD = 1000mA ILOAD = 2000mA 20 15 10 12529-010 5 0 –40 –5 25 TEMPERATURE (°C) 85 0.01 –50 105 Figure 10. Ground Current vs. Temperature, Different Load Currents, VIN = 13.2 V 25 GROUND CURRENT (µA) 15 –30 –10 50 10 30 TEMPERATURE (°C) 70 90 110 Figure 13. Ground Shutdown Current vs. Temperature, VOUT = 0 V, Different Input Voltages (VIN) VIN = 2.3V VIN = 2.5V VIN = 3.0V VIN = 4.0V VIN = 5.0V VIN = 6.5V VIN = 8.0V VIN = 10.0V VIN = 12.0V VIN = 13.2V 20 VIN = 2.3V VIN = 2.5V VIN = 3.0V VIN = 4.0V VIN = 5.0V VIN = 6.5V VIN = 8.0V VIN = 10.0V VIN = 12.0V VIN = 13.2V 0.10 12529-013 25 EN 1 INPUT CURRENT 3 10 OUTPUT 5 0 10 100 1000 12529-014 12529-011 2 CH1 2.00V BW CH2 1.00V BW M400µs T 10.40% CH3 200mAΩ BW 10000 ILOAD (mA) Figure 11. Ground Current vs. Load Current (ILOAD), Different Input Voltages (VIN) A CH4 1.04V Figure 14. Typical Turn On Time and Inrush Current, VIN = 2.3 V, COUT = 100 μF, RLOAD = 100 Ω 10 EN INPUT CURRENT 1 3 0.1 0.01 –50 –30 –10 10 30 50 TEMPERATURE (°C) 70 90 OUTPUT 2 12529-015 VIN = 2.3V VIN = 2.5V VIN = 3.0V VIN = 4.0V VIN = 5.0V VIN = 6.5V VIN = 8.0V VIN = 10.0V VIN = 12.0V VIN = 13.2V 12529-012 SHUTDOWN CURRENT (I OFF) (µA) 1 CH1 2.00V BW CH2 2.00V BW M400µs T 10.40% CH3 1.00AΩ BW 110 A CH4 1.04V Figure 15. Typical Turn On Time and Inrush Current, VIN = 6.5 V, COUT = 100 μF, RLOAD = 100 Ω Figure 12. Ground Shutdown Current vs. Temperature, Output Open, Different Input Voltages (VIN) Rev. 0 | Page 7 of 12 ADP1290 Data Sheet EN EN 1 1 INPUT CURRENT INPUT CURRENT 3 3 OUTPUT OUTPUT CH1 2.00V BW CH2 5.00V BW M400µs T 10.40% CH3 1.00AΩ BW A CH4 12529-018 2 12529-016 2 CH1 2.00V BW CH2 2.00V BW M400µs T 10.40% CH3 100mAΩ BW 1.04V Figure 16. Typical Turn On Time and Inrush Current, VIN = 13.2 V, COUT = 100 μF, RLOAD = 100 Ω A CH4 1.04V Figure 18. Typical Turn On Time and Inrush Current, VIN = 6.5 V, COUT = 10 μF, RLOAD = 100 Ω EN 1 1 INPUT CURRENT 3 3 OUTPUT CH1 2.00V BW CH2 1.00V BW M400µs T 10.40% CH3 50.0mAΩ BW A CH4 12529-019 2 12529-017 2 CH1 2.00V BW CH2 5.00V BW M400µs T 10.40% CH3 200mAΩ BW 1.04V Figure 17. Typical Turn On Time and Inrush Current, VIN = 2.3 V, COUT = 10 μF, RLOAD = 100 Ω A CH4 1.04V Figure 19. Typical Turn On Time and Inrush Current, VIN = 13.2 V, COUT = 10 μF, RLOAD = 100 Ω Rev. 0 | Page 8 of 12 Data Sheet ADP1290 THEORY OF OPERATION The ADP1290 is a high-side NMOS load switch, controlled by an internal charge pump. The ADP1290 is designed to operate with power supply voltages between 2.3 V and 13.2 V. The ADP1290 is capable of 2 A of continuous current as long as TJ is less than 85°C. Between 85°C and 105°C, the rated current decreases linearly to 1.6 A. An internal charge pump biases the NMOS switch to achieve a relatively constant, ultralow on resistance of 40 mΩ across the entire input voltage range. The use of the internal charge pump also allows controlled turn on times. Turning the NMOS switch on and off is controlled by the enable input, EN, which is capable of interfacing directly with 1.2 V logic signals. ESD protection structures are shown in the block diagram as Zener diodes. VIN The ADP1290 is a low quiescent current device with a weak 15 nA pull-down current sink on its enable pin (EN). The ADP1290 is available in a space-saving 1.0 mm × 1.5 mm, 0.5 mm pitch, 6-ball WLCSP. VOUT GND CHARGE PUMP AND SLEW RATE CONTROL 12529-020 EN Figure 20. Functional Block Diagram Rev. 0 | Page 9 of 12 ADP1290 Data Sheet APPLICATIONS INFORMATION CAPACITOR SELECTION ENABLE FEATURE Output Capacitor The ADP1290 uses the EN pin to enable and disable the VOUT pin under normal operating conditions. As shown in Figure 22, when a rising voltage (VEN) on the EN pin crosses the active threshold, the VOUT pin turns on. When a falling voltage (VEN) on the EN pin crosses the inactive threshold, the VOUT pin turns off. The ADP1290 is designed for operation with small, spacesaving ceramic capacitors but functions with most commonly used capacitors when the effective series resistance (ESR) value is carefully considered. The ESR of the output capacitor affects the response to load transients. A typical 1 µF capacitor with an ESR of 0.1 Ω or less is recommended for good transient response. Using a larger value of output capacitance improves the transient response to large changes in load current. 6 5 Input Bypass Capacitor 4 VOUT (V) Connecting at least 1 µF of capacitance from VIN to GND reduces the circuit sensitivity to the PCB layout, especially when high source impedance or long input traces are encountered. When an output capacitance of greater than 1 µF is required, increase the input capacitor to match it. VEN RISING 0 0.50 0.55 GROUND CURRENT (µA) 0.95 1.00 0.7 14 INPUT VOLTAGE (V) Figure 21. Ground Current vs. Input Voltage (VIN), Different Load Currents (ILOAD) 0.6 EN RISE EN FALL 0.5 0.4 0.3 0.2 0.1 12529-023 12 0.90 0.8 ENABLE THRESHOLD (V) 10 0.85 0.9 12529-021 8 0.80 The EN pin rising and falling thresholds derive from the VIN voltage; therefore, these thresholds vary with the changing input voltage. Figure 23 shows the typical EN rising and falling thresholds when the input voltage varies from 2.3 V to 13.2 V. ILOAD = 50mA ILOAD = 100mA ILOAD = 200mA ILOAD = 500mA ILOAD = 1000mA ILOAD = 2000mA 6 0.75 As shown in Figure 22, the EN pin has hysteresis built into it. The hysteresis prevents on/off oscillations that can occur due to noise on the EN pin as it passes through the threshold points. 15 4 0.70 Figure 22. Typical EN Operation 20 5 0.60 0.65 ENABLE VOLTAGE (V) 25 10 12529-022 1 The major source for ground current in the ADP1290 is the internal charge pump for the FET drive circuitry. Figure 21 shows the typical ground current when VEN = VIN and varies from 2.3 V to 13.2 V. 2 VEN FALLING 2 GROUND CURRENT 0 VOUT AT 2.3V VOUT AT 5.0V 3 0 2 4 6 8 10 12 14 VIN (V) Figure 23. Typical EN Thresholds (Rising and Falling) vs. Input Voltage (VIN) Rev. 0 | Page 10 of 12 Data Sheet ADP1290 TIMING Turn on delay is defined as the interval between the time that VEN exceeds the rising threshold voltage and when VOUT rises to ~10% of its final value. The ADP1290 includes circuitry that has a typical 250 μs turn on delay and a controlled rise time to limit the VIN inrush current. As shown in Figure 24 and Figure 25, the turn on delay is nearly independent of the input voltage. Figure 26 and Figure 27 show the typical turn off times with VIN = 6.5 V, COUT = 10 μF and 100 μF, and RLOAD = 100 Ω. EN 1 EN 1 OUTPUT INPUT CURRENT 3 12529-026 2 OUTPUT CH1 2.00V BW CH2 2.00V BW M400µs T 10.40% A CH4 1.04V Figure 26. Typical Turn Off Time, COUT = 10 μF, RLOAD = 100 Ω 12529-024 2 CH1 2.00V BW CH2 2.00V BW M400µs T 10.40% CH3 100mAΩ BW A CH4 1.04V EN Figure 24. Typical Turn On Time and Inrush Current, VIN = 2.5 V, COUT = 10 μF, RLOAD = 100 Ω 1 EN 1 INPUT CURRENT OUTPUT 3 12529-027 2 CH1 1.00V BW CH2 2.00V BW M400µs T 10.40% OUTPUT A CH4 1.08V Figure 27. Typical Turn Off Time, COUT = 100 μF, RLOAD = 100 Ω CURRENT AND THERMAL OVERLOAD PRECAUTIONS 12529-025 2 CH1 2.00V BW CH2 5.00V BW M400µs T 10.40% CH3 200mAΩ BW A CH4 1.04V Figure 25. Typical Turn On Time and Inrush Current, VIN = 6.5 V, COUT = 10 μF, RLOAD = 100 Ω The rise time is defined as the time it takes the output voltage to rise from 10% to 90% of VOUT reaching its final value. The turn on delay is dependent on the rise time of the internal charge pump. For very large values of output capacitance, the RC time constant (where C is the load capacitance, CLOAD, and R is the RDSON||RLOAD) can become a factor in the rise time of the output voltage. Because RDSON is much smaller than RLOAD, an adequate approximation for RC is RDSON × CLOAD. An input or load capacitor is not required for the ADP1290; however, capacitors can suppress noise on the board. The turn off time is defined as the time it takes for the output voltage to fall from 90% to 10% of VOUT reaching its final value. The turn off time is also dependent on the RC time constant of the output capacitance (CLOAD) and load resistance (RLOAD). The ADP1290 is not protected against damage due to excessive power dissipation and does not have thermal overload protection circuits. To prevent permanent damage, never allow current through the ADP1290 to exceed its rated value for more than a few milliseconds. Permanent damage can also occur if the output is shorted to ground THERMAL CONSIDERATIONS To guarantee reliable operation, the junction temperature of the ADP1290 must not exceed 105°C. To ensure that the junction temperature stays below this maximum value, the user must be aware of the parameters that contribute to junction temperature changes. These parameters include ambient temperature, power dissipation in the power device, and thermal resistances between the junction and ambient air (θJA). The θJA number is dependent on the package assembly and the amount of copper used to solder the package pins to the PCB. Rev. 0 | Page 11 of 12 ADP1290 Data Sheet OUTLINE DIMENSIONS 1.000 0.950 0.900 2 1 A BALL A1 IDENTIFIER 1.500 1.450 1.400 1.00 REF C 0.50 BSC TOP VIEW (BALL SIDE DOWN) 0.675 0.595 0.515 B 0.50 BSC BOTTOM VIEW 0.380 0.355 0.330 SIDE VIEW (BALL SIDE UP) 0.345 0.295 0.245 SEATING PLANE 0.270 0.240 0.210 11-08-2012-B COPLANARITY 0.075 Figure 28. 6-Ball Wafer Level Chip Scale Package [WLCSP] (CB-6-2) Dimensions shown in millimeters ORDERING GUIDE Model1 ADP1290ACBZ-R7 ADP1290CB-EVALZ 1 Temperature Range −40°C to +105°C Package Description 6-Ball Wafer Level Chip Scale Package [WLCSP] Evaluation Board Z = RoHS Compliant Part. ©2014 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D12529-0-12/14(0) Rev. 0 | Page 12 of 12 Package Option CB-6-2 Branding CL