ADP1110AN-33 AD [Analog Devices], ADP1110AN-33 Datasheet
ADP1110AN-33
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ADP1110AN-33 Summary of contents
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FEATURES Operates at Supply Voltages From 1 Step-Up or Step-Down Mode Minimal External Components Required Low-Battery Detector User-Adjustable Current Limiting Fixed or Adjustable Output Voltage Versions 8-Pin DIP or SO-8 Package APPLICATIONS Cellular Telephones Single-Cell ...
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ADP1110–SPECIFICATIONS Parameter QUIESCENT CURRENT INPUT VOLTAGE COMPARATOR TRIP POINT VOLTAGE OUTPUT SENSE VOLTAGE COMPARATOR HYSTERESIS OUTPUT HYSTERESIS OSCILLATOR FREQUENCY DUTY CYCLE SWITCH ON TIME FEEDBACK PIN BIAS CURRENT SET PIN BIAS CURRENT A0 OUTPUT LOW REFERENCE LINE REGULATION SWITCH SATURATION ...
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... V ADP1110AR-3.3 3.3 V ADP1110AN ADP1110AR ADP1110AN- ADP1110AR- CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADP1110 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...
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ADP1110-Typical Characteristics 1 +1. +1.2V 0 +1V IN 0.4 0.2 0 0.1 0.2 0.4 0.5 0.6 0.8 I CURRENT – A SWITCH Figure 2. Saturation Voltage vs. ...
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OSCILLATOR FREQUENCY TEMPERATURE – C Figure 8. Oscillator Frequency vs. Temperature 9.0 8.9 8.8 8.7 8.6 SWITCH ON TIME 8.5 8.4 8.3 8 TEMPERATURE – C Figure 9. ...
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ADP1110 400 350 BIAS CURRENT 300 250 200 150 100 TEMPERATURE – C Figure 14. Set Pin Bias Current vs. Temperature THEORY OF OPERATION The ADP1110 is a flexible, low-power, switch-mode power supply (SMPS) controller. The ...
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CALCULATING THE INDUCTOR VALUE Selecting the proper inductor value is a simple three-step process: 1. Define the operating parameters: minimum input voltage, maximum input voltage, output voltage and output current. 2. Select the appropriate conversion topology (step-up, step- down, or ...
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ADP1110 As previously mentioned, the switch voltage is higher in step- down mode than in step-up mode current and is therefore a function For most applications value of 1 recommended. SW ...
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ESR of 0.06 . Figure 18 shows an OS-CON 16–volt capacitor in the same circuit, and ESR is only 0.02 . 50mV 100 Figure 16. Aluminum Electrolytic 50mV 100 90 10 ...
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ADP1110 turns “on” again, and the cycle repeats. The output voltage is therefore set by the formula: V 220 mV 1 OUT The circuit of Figure 19 shows a direct current path from via the inductor and ...
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POSITIVE-TO-NEGATIVE CONVERSION The ADP1110 can convert a positive input voltage to a negative output voltage as shown in Figure 23. This circuit is essentially identical to the step-down application of Figure 19, except that the “output” side of the inductor ...
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ADP1110 The internal structure of the I circuit is shown in Figure 27. LIM Q1 is the ADP1110’s internal power switch, that is paralleled by sense transistor Q2. The relative sizes of Q1 and Q2 are scaled so that I ...
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APPLICATION CIRCUITS All-Surface-Mount, Single-Cell Converter This is a very simple, compact, low-part-count circuit that takes a single alkaline 1.5 V cell input and produces output. The output current should be kept ...
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ADP1110 1 +10 V Dual Output Step-Up Converter The circuit of Figure 35 illustrates a way to get outputs of +10 V and +5 V from the same converter. The main 5 V output is derived ...
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REV. 0 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Lead Plastic DIP (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.325 (8.25) 0.300 (7.62) 0.060 (1.52) PIN 1 0.015 (0.38) 0.210 (5.33) MAX 0.130 ...
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