ADP1073 Analog Devices, ADP1073 Datasheet
ADP1073
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ADP1073 Summary of contents
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... Quiescent current on the ADP1073-5 is only 100 A unloaded, making it ideal for systems where long battery life is required. The ADP1073 can deliver from an input voltage range as low as 1. from a 1.0 V input. Current limiting is available by adding an external resistor. ...
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... V source and the AO pin. 4 The ADP1073 is guaranteed to withstand continuous application of +1.6 V applied to the GND and SW2 pins while V All limits at temperature extremes are guaranteed via correlation using standard Quality Control methods. Specifications subject to change without notice. ...
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... Input Supply Voltage, Step-Up Mode . . . . . . . . . . . . . . . 15 V Input Supply Voltage, Step-Down Mode . . . . . . . . . . . . . 36 V SW1 Pin Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V SW2 Pin Voltage . . . . . . . . . . . . . . . . . . . . . . . . .–0 Feedback Pin Voltage (ADP1073 Switch Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5 A Maximum Power Dissipation . . . . . . . . . . . . . . . . . . 500 mW Operating Temperature Range ( +70 C Storage Temperature Range . . . . . . . . . . . . – +150 C Lead Temperature (Soldering, 10 sec) ...
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... ADP1073 –Typical Performance Characteristics 1 1. 5. 2.0V 0 1.25V 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 SWITCH CURRENT – Amps Figure 2. Saturation Voltage vs. Switch Current in Step-Up Mode 1000 100 FOR V > 1.6V LIM 1.5 2 2.5 3 3.5 INPUT VOLTAGE – Volts Figure 5. Guaranteed Minimum Output Current vs. ...
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... I LIM mation included in the Limiting the Switch Current LIM section of this data sheet. The ADP1073 internal oscillator provides and 15 s OFF times, which is ideal for applications where the ratio be- tween V and V is roughly a factor of three (such as gener- IN OUT ating +5 V from a single 1 ...
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... If the voltage drop across the switch is small com- pared simpler equation can be used: IN Replacing t in the above equation with the ON time of the ADP1073 (38 s, typical) will define the peak current for a given inductor value and input voltage. At this point, the inductor energy can be calculated as follows: As previously mentioned, E ADP1073 can deliver the necessary power to the load ...
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... Inductor Selection—Positive-to-Negative Converter The configuration for a positive-to-negative converter using the PEAK ADP1073 is shown in Figure 17. As with the step-up converter, all of the output power for the inverting circuit must be supplied by the inductor. The required inductor power is derived from the formula: The ADP1073 power switch does not saturate in positive-to- negative mode ...
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... A surface mount version, the MBRS130T3, is also available. For applications where the ADP1073 is “off” most of the time, such as when the load is intermittent, a silicon diode may provide higher overall efficiency due to lower leakage. For example, the 1N4933 has capability, but with a leakage current of less than 1 A ...
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... The output voltage should be limited to 6 less when using the ADP1073 in step-down mode. If the input voltage to the ADP1073 varies over a wide range, a current limiting resistor at Pin 1 may be required particular circuit requires high peak inductor current with minimum input ...
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... V input rises however, the switch current will exceed IN 1.6 A. The ADP1073 limits switch current to 1.5 A and thereby protects the switch, but the output ripple will increase. Selecting the proper resistor will limit the switch current to 800 mA, even if V increases ...
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... OSCILLATOR Figure 21. Current Limit Operation Programming the Gain Block The gain block of the ADP1073 can be used as a low battery detector, error amplifier or linear post regulator. The gain block consists amp with PNP inputs and an open-collector NPN output. The inverting input is internally connected to the ADP1073’ ...
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... Application Circuits ADP1073 1M +12V 1 F* 100 V2 V1 100 F V2 – SET IN 100 *NON-POLARIZED Figure 24. Test Circuit Measures No Load Quiescent Current of ADP1073 Converter * L1 1N5818 120 H 220 1.00M ** I V SW1 LIM IN 1.5 VOLT CELL ADP1073 FB GND SW2 23. GOWANDA GA10-123k OR CADDELL-BURNS 7300- METAL FILM Figure 25 ...
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... I V SW1 LIM IN ADP1073 FB GND SW2 40. 100 H 1N5818 100 F OR CADDELL-BURNS 7300-13 220 I V SW1 LIM IN ADP1073-5 SENSE GND SW2 L1 * 100 H 5V OUTPUT 1N5818 100 GOWANDA GA10-103k OR CADDELL-BURNS 7300- 1N5818 OUTPUT 25mA 2N3906 2.2 56 100 SW1 LIM ...
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... LIM IN FB CELL ADP1073 SET AO GND SW2 40. GOWANDA GA10-473k OR CADDELL-BURNS 7300- METAL FILM EFFICIENCY = 83% AT 5mA LOAD I V SW1 * LIM ADP1073 SET AO 1N5818 GND SW2 OR CADDELL-BURNS 7300- INPUT 1000 F 10V 560k LIM 1N5820 FB SW1 ADP1073 AO SET ...
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... BSC 8-Lead Small Outline Package (SO-8) 0.1968 (5.00) 0.1890 (4.80 0.1574 (4.00) 0.2440 (6.20 0.1497 (3.80) 0.2284 (5.80) PIN 1 0.0688 (1.75) 0.0098 (0.25) 0.0532 (1.35) 0.0040 (0.10) 8 0.0500 0.0192 (0.49) 0 SEATING 0.0098 (0.25) (1.27) 0.0138 (0.35) PLANE BSC 0.0075 (0.19) –15– ADP1073 0.195 (4.95) 0.115 (2.93) 0.015 (0.381) 0.008 (0.204) 0.0196 (0.50 0.0099 (0.25) 0.0500 (1.27) 0.0160 (0.41) ...
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