ADP1714 Analog Devices, ADP1714 Datasheet
ADP1714
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ADP1714 Summary of contents
Page 1
... Figure 4. ADP1714 with Output Voltage Tracking soft-start time. The ADP1713 allows a reference bypass capacitor to be connected, which reduces output voltage noise and improves power supply rejection. The ADP1714 includes a tracking feature, which allows the output to follow an external voltage rail or reference. The ADP1712/ADP1713/ADP1714 are optimized for stable operation with small 2.2 μ ...
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... REVISION HISTORY 6/09—Rev Rev. A Updated Outline Dimensions ....................................................... 15 Changes to Ordering Guide .......................................................... 15 1/07—Revision 0: Initial Version Adjustable Output Voltage (ADP1712 Adjustable) ............... 11 Bypass Capacitor (ADP1713) ................................................... 11 Track Mode (ADP1714) ............................................................ 11 Enable Feature ............................................................................ 11 Undervoltage Lockout (UVLO) ............................................... 11 Application Information ................................................................ 12 Capacitor Selection .................................................................... 12 Current Limit and Thermal Overload Protection ................. 12 Thermal Considerations ............................................................ 13 Printed Circuit Board Layout Considerations ...
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... V 1 ACCURACY (ADP1712 ADJUSTABLE) LINE REGULATION ∆V 2 LOAD REGULATION ∆V 3 DROPOUT VOLTAGE V 4 START-UP TIME T ADP1712 Adjustable and ADP1714 ADP1712 External Soft Start ADP1713 5 CURRENT LIMIT THRESHOLD I THERMAL SHUTDOWN THRESHOLD TS THERMAL SHUTDOWN HYSTERESIS TS SOFT-START SOURCE CURRENT SS (ADP1712 WITH EXTERNAL SOFT START) ...
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... ADP1713 ADP1712 and ADP1714 POWER SUPPLY REJECTION RATIO PSRR ADP1713 ADP1712 and ADP1714 1 Accuracy when OUT is connected directly to ADJ. When OUT voltage is set by external feedback resistors, absolute accuracy in adjust mode depends on the tolerances of resistors used. 2 Based on an end-point calculation using 10 mA and 300 mA loads. See 3 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage ...
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... –0 Table 3. Thermal Resistance –0 Package Type –0 5-Lead TSOT –65°C to +150°C –40°C to +125°C 300°C ESD CAUTION JEDEC J-STD-020 Rev Page ADP1712/ADP1713/ADP1714 θ Unit JA 170 °C/W ...
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... Track. The output follows the voltage placed on the TRK pin. (See the Theory of Operation section for a more detailed description.) 5 OUT Regulated Output Voltage. Bypass OUT to GND with a 2.2 μF or greater capacitor. Rev Page OUT ADP1713 ADP1714 GND 2 2 TOP VIEW TOP VIEW (Not to Scale) (Not to Scale) BYP Figure 8 ...
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... LOAD I = 300mA LOAD 3.280 3.3 3.8 4.3 V (V) IN Figure 11. Output Voltage vs. Input Voltage = 2.2 μ 25°C, unless otherwise noted. A 110 100 1000 4.8 5.3 Rev Page ADP1712/ADP1713/ADP1714 450 I = 300mA LOAD 400 350 I = 200mA LOAD 300 250 I = 100mA LOAD 200 150 I = 10mA LOAD I = 1mA 100 ...
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... ADP1712/ADP1713/ADP1714 180 160 140 120 100 0 (mA) LOAD Figure 15. Dropout Voltage vs. Load Current 3.35 3.30 3.25 3.20 3.15 3.10 3.05 3.00 3.20 3.25 3.30 3.35 3.40 3.45 V (V) IN Figure 16. Output Voltage vs. Input Voltage (in Dropout) 1000 900 800 700 600 500 I 400 LOAD 100mA I = LOAD 300 10mA 200 I = 1mA LOAD 100 I = 100µA ...
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... Figure 23. ADP1712 Adjustable Power Supply Rejection Ratio vs. –45 – 100mA LOAD = 10mA –55 –60 –65 –70 1M 10M Figure 24. ADP1712 Adjustable Power Supply Rejection Ratio vs. Rev Page ADP1712/ADP1713/ADP1714 V = 50mV RIPPLE I = 10mA LOAD C = 2.2μF OUT FREQUENCY = 10kHz V = 2.4V OUT V = 1.6V OUT V = 0.8V OUT 2 ...
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... BYP pin and GND, which reduces output voltage noise and improves power supply rejection. The ADP1714 features a track pin, which allows the output voltage to follow the voltage at the TRK pin. A logic on the EN pin determines if the output is active. When EN is high, the output is on, and when EN is low, the output is off ...
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... BYP and GND pins. TRACK MODE (ADP1714) The ADP1714 includes a tracking mode feature. As shown in Figure 28, if the voltage applied at the TRK pin is less than the nominal output voltage, OUT is equal to the voltage at TRK. ...
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... Consider the case where a hard short from OUT to ground occurs. At first the ADP1712/ADP1713/ADP1714 current limit, so that only 500 mA is conducted into the short. If self heating of the junction is great enough to cause its temperature to rise above 150° ...
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... THERMAL CONSIDERATIONS To guarantee reliable operation, the junction temperature of the ADP1712/ADP1713/ADP1714 must not exceed 125°C. To ensure the junction temperature stays below this maximum value, the user needs to 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 (θ ...
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... CONSIDERATIONS Heat dissipation from the package can be improved by increasing the amount of copper attached to the pins of the ADP1712/ ADP1713/ADP1714. However, as can be seen from Table 5, a point of diminishing returns eventually is reached, beyond which an increase in the copper size does not yield significant heat dissipation benefits. ...
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... TSOT 1.80 5-Lead TSOT 2.50 5-Lead TSOT 3.00 5-Lead TSOT 3.30 5-Lead TSOT 0 5-Lead TSOT 0.75 5-Lead TSOT 0.80 5-Lead TSOT 0.85 5-Lead TSOT 0.90 5-Lead TSOT 0.95 5-Lead TSOT 1.00 5-Lead TSOT 1.05 5-Lead TSOT 1.10 5-Lead TSOT 1.15 5-Lead TSOT 1.20 5-Lead TSOT Rev Page ADP1712/ADP1713/ADP1714 8° 4° 0.60 0° 0.45 0.30 Package Option UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 UJ-5 ...
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... TSOT 3.3 ADP1712 Fixed 3.3 V Output with Soft Start Evaluation Board Adjustable, ADP1712 Adjustable Output Evaluation Board but set to 1.6 3.3 ADP1713 Fixed 3.3 V Output with Bypass Evaluation Board 3.3 ADP1714 Fixed 3.3 V Output with Track Mode Evaluation Board D06455-0-6/09(A) D06455-0-6/09(A) Rev Page Package Option Branding UJ-5 L54 UJ-5 ...