ADP1715 Analog Devices, ADP1715 Datasheet
ADP1715
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ADP1715 Summary of contents
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... OUT 2.2µF 10nF Figure 1. ADP1715 with Fixed Output Voltage, 3.3 V ADP1715 ADJUSTABLE OUT 3 2.2µ ADJ V = 0.8(1 + R1/R2) OUT R2 2.2µF Figure 2. ADP1715 with Adjustable Output Voltage, 0 5.0 V ADP1716 1 EN GND GND 2.2µF 3 OUT GND 6 TRK GND OUT 2.2µ ...
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... Absolute Maximum Ratings............................................................ 4 Thermal Resistance ...................................................................... 4 ESD Caution.................................................................................. 4 Pin Configurations and Function Descriptions ........................... 5 Typical Performance Characteristics ............................................. 6 Theory of Operation ...................................................................... 10 Soft-Start Function (ADP1715)................................................ 10 Adjustable Output Voltage (ADP1715 Adjustable) ............... 11 REVISION HISTORY 9/06—Rev. 0: Initial Version Track Mode (ADP1716) ............................................................ 11 Enable Feature ............................................................................ 11 Application Information................................................................ 12 Capacitor Selection .................................................................... 12 Current Limit and Thermal Overload Protection ................. 12 Thermal Considerations ...
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... OUT 2 LOAD REGULATION ∆V OUT 3 DROPOUT VOLTAGE V DROPOUT 4 START-UP TIME T START-UP ADP1715 Adjustable and ADP1716 ADP1715 with External Soft Start 5 CURRENT LIMIT THRESHOLD I LIMIT THERMAL SHUTDOWN THRESHOLD TS SD THERMAL SHUTDOWN HYSTERESIS TS SD-HYS SOFT-START SOURCE CURRENT SS I-SOURCE (ADP1715 WITH EXTERNAL SOFT START) ...
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... ADP1715/ADP1716 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter IN to GND OUT to GND EN to GND SS/ADJ/TRK to GND Storage Temperature Range Operating Junction Temperature Range Soldering Conditions Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied ...
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... Adjust. A resistor divider from OUT to ADJ sets the output voltage. TRK Track. The output will follow the voltage placed on the TRK pin. (See the Theory of Operation section for a more detailed description.) GND Ground. Rev Page ADP1715/ADP1716 GND ADP1716 IN GND ...
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... ADP1715/ADP1716 TYPICAL PERFORMANCE CHARACTERISTICS 2.2 μ OUT IN 3.364 3.354 3.344 3.334 3.324 I = 10mA LOAD 3.314 I = 100µA LOAD 3.304 3.294 3.284 3.274 I = 500mA LOAD 3.264 I = 360mA LOAD 3.254 3.244 3.234 –40 – (°C) J Figure 7. Output Voltage vs. Junction Temperature 3 ...
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... I = LOAD 500mA = LOAD 3.55 3.60 Rev Page ADP1715/ADP1716 SWITCH SIGNAL TO CHANGE OUTPUT LOAD FROM 25mA TO 475mA V OUT 3.3V OUT C = 2.2µ 2.2µF OUT TIME (10µs/DIV) Figure 16. Load Transient Response SWITCH SIGNAL TO CHANGE OUTPUT LOAD FROM 25mA TO 475mA ...
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... ADP1715/ADP1716 (nF) SS Figure 19. Output Voltage Ramp-Up Time vs. Soft-Start Capacitor Value 50mV p-p RIPPLE – 0.75V OUT – 2.2µF OUT I = 100µA LOAD –30 –40 –50 –60 –70 –80 –90 –100 10 100 1k 10k FREQUENCY (Hz) Figure 20 ...
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... Figure 24. Power Supply Rejection Ratio vs. Frequency 0 V RIPPLE –10 V OUT C OUT –20 I LOAD –30 –40 –50 –60 –70 –80 –90 1M 10M 10 Figure 25. Power Supply Rejection Ratio vs. Frequency 1M 10M Rev Page ADP1715/ADP1716 = 50mV p-p = 3.3V = 2.2µF = 100mA 100 1k 10k 100k 1M FREQUENCY (Hz) 10M ...
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... To implement soft start, connect a small ceramic capacitor from SS to GND. Upon startup, a 1.2 μA current source charges this capacitor. The ADP1715 start-up output voltage is limited by the voltage at SS, providing a smooth ramp up to the nominal output voltage. The soft-start time is calculated by ...
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... ENABLE FEATURE The ADP1715/ADP1716 use the EN pin to enable and disable the OUT pin under normal operating conditions. As shown in Figure 30, when a rising voltage on EN crosses the active threshold, OUT turns on. When a falling voltage on EN crosses the inactive threshold, OUT turns off ...
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... ADP1715/ADP1716. Transient response to changes in load current is also affected by output capacitance. Using a larger value of output capacitance improves the transient response of the ADP1715/ADP1716 to large changes in load current. Figure 32 and Figure 33 show the transient responses for output capacitance values of 2.2 μF and 22 μF. ...
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... MSOP package for various PCB copper sizes. Table 5. Copper Size ( 100 300 500 700 1 Device soldered to minimum size pin traces. The junction temperature of the ADP1715/ADP1716 can be calculated from the following equation × θ where the ambient temperature. ...
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... ADP1715/ADP1716 140 DO NOT OPERATE ABOVE THIS POINT 120 MAX T J 100 1mA 50mA 250mA 10mA 100mA 360mA – V (V) IN OUT 2 Figure 37 PCB Copper, T 140 DO NOT OPERATE ABOVE THIS POINT 120 MAX T J 100 ...
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... The 8-lead MSOP package has the four GND pins fused together internally, which enhances its thermal characteristics. Heat dissipation from the package is increased by connecting as much copper as possible to the four GND pins of the ADP1715/ ADP1716. From Table 5 it can be seen that a point of diminishing returns eventually is reached, beyond which an increase in the copper size does not yield additional heat dissipation benefits ...
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... ADP1715/ADP1716 OUTLINE DIMENSIONS 3.20 3.00 2. 5.15 3.20 4.90 3.00 4.65 1 2.80 4 PIN 1 0.65 BSC 0.95 0.85 1.10 MAX 0.75 8° 0.15 0.38 0.23 0° 0.00 0.22 0.08 SEATING COPLANARITY PLANE 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 47. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions show in millimeters Rev Page 0.80 0.60 0.40 ...
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... ADP1715ARMZ-1.15R7 1 –40°C to +125°C 1 ADP1715ARMZ-1.2-R7 –40°C to +125°C ADP1715ARMZ-1.3-R7 1 –40°C to +125°C 1 ADP1715ARMZ-1.5-R7 –40°C to +125°C 1 ADP1715ARMZ-1.8-R7 –40°C to +125°C 1 ADP1715ARMZ-2.5-R7 –40°C to +125°C 1 ADP1715ARMZ-3.0-R7 –40°C to +125°C 1 ADP1715ARMZ-3.3-R7 –40°C to +125°C 1 ADP1715ARMZ-R7 – ...
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... ADP1715/ADP1716 NOTES Rev Page ...
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... NOTES Rev Page ADP1715/ADP1716 ...
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... ADP1715/ADP1716 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06110-0-9/06(0) Rev Page ...