ADP2106 Analog Devices, ADP2106 Datasheet
ADP2106
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ADP2106 Summary of contents
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... ADP2105/ADP2106/ADP2107 are available in preset output voltage options of 3.3 V, 1.8 V, 1.5 V, and 1.2 V (indicated by x.x V). Each of these variations is available in three maximum current levels (ADP2105), 1.5 A (ADP2106), and 2 A (ADP2107). The power switch and synchronous rectifier are integrated for minimal external part count and high efficiency. During logic controlled shutdown, the input is disconnected from the output, and it draws less than 0.1 μ ...
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... ADP2105/ADP2106/ADP2107 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Typical Operating Circuit ................................................................ 1 Revision History ............................................................................... 2 Functional Block Diagram .............................................................. 3 Specifications ..................................................................................... 4 Absolute Maximum Ratings ............................................................ 6 Thermal Resistance ...................................................................... 6 Boundary Condition .................................................................... 6 ESD Caution .................................................................................. 6 Pin Configuration and Function Descriptions ............................. 7 Typical Performance Characteristics ............................................. 8 Theory of Operation ...................................................................... 14 Control Scheme .......................................................................... 14 PWM Mode Operation .............................................................. 14 PFM Mode Operation ................................................................ 14 Pulse-Skipping Threshold ...
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... GM ERROR AMP AGND 7 FOR PRESET VOLTAGE OPTIONS ONLY GND 2 GND 3 SLOPE GND 4 COMPENSATION NC 8 GND 15 OSCILLATOR EN 1 Rev Page ADP2105/ADP2106/ADP2107 14 9 CURRENT SENSE AMPLIFIER 13 CURRENT PWM/ LIMIT PFM CONTROL DRIVER AND 10 ANTI- SHOOT THROUGH 12 ZERO CROSS COMPARATOR 11 THERMAL SHUTDOWN Figure 3. ...
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... V 1 −40°C ≤ T 0.4 %/A ADP2105 0.5 %/A ADP2106 0.6 %/A ADP2107 0.1 0.33 %/V ADP2105, measured in servo loop 0.1 0.3 %/V ADP2106 and ADP2107, measured in servo loop 0 ADJ IN 0.8 V ADJ 0.784 0.816 V ADJ, −40°C ≤ T −0.1 +0.1 μA ADJ, −40°C ≤ μA 1.2 V output voltage 6 μA 1.2 V output voltage, − ...
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... Guaranteed by design. 3 The ADP2105/ADP2106/ADP2107 line regulation was measured in a servo loop on the automated test equipment that adjusts the feedback voltage to achieve a specific COMP voltage. 4 All LX (switch) node characteristics are guaranteed only when the LX1 pin and LX2 pin are tied together. ...
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... ADP2105/ADP2106/ADP2107 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter IN, EN, SS, COMP AGND LX1, LX2 to PGND PWIN1, PWIN2 to PGND PGND to AGND GND to AGND PWIN1, PWIN2 to IN Operating Junction Temperature Range Storage 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 ...
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... ADP2105/ADP2106/ADP2107 Power Input. The power source for the ADP2105/ADP2106/ADP2107 internal circuitry. Connect IN and PWIN1 with a 10 Ω resistor as close as possible to the ADP2105/ADP2106/ADP2107. Bypass IN to AGND with a 0.1 μF or greater capacitor. See the Input Filter section Output Voltage Sense or Feedback Input. For fixed output versions, connect to the output voltage. For adjustable versions the input to the error amplifier ...
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... DCR: 28mΩ 25° 100 1k LOAD CURRENT (mA) Figure 9. Efficiency—ADP2106 (1.2 V Output) 100 5. 4. 3.6V IN INDUCTOR: D62LCB, 3.3µH 55 DCR: 47mΩ 25° 100 1k LOAD CURRENT (mA) Figure 10. Efficiency—ADP2106 (3.3 V Output) 1000 10k 10k ...
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... Figure 15. Output Voltage Accuracy—ADP2107 (1.2 V) 3.38 3.36 3.34 3.32 3.30 3.28 3.26 3.24 3.22 1k 10k 0.01 Figure 16. Output Voltage Accuracy—ADP2107 (3.3 V) Rev Page ADP2105/ADP2106/ADP2107 5.5V IN INDUCTOR: D62LCB, 1.5µH DCR: 21mΩ 25° 100 1k LOAD CURRENT (mA) Figure 14. Efficiency—ADP2107 (1.8 V) 2.7V, –40°C 2.7V, +25°C 2.7V, +125°C 3.6V, – ...
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... Figure 20. Switch On Resistance vs. Input Voltage—ADP2105 120 100 80 100 120 125 Figure 21. Switch On Resistance vs. Input Voltage—ADP2106 and ADP2107 1260 1250 1240 1230 1220 1210 1200 T = 25°C A 1190 4.8 5.1 5.4 5.7 Rev Page PMOS POWER SWITCH NMOS SYNCHRONOUS RECTIFIER 2 ...
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... Figure 24. Peak Current Limit of ADP2107 150 135 120 105 V = 1.2V OUT 2. 1.8V OUT OUT 2.7 3.0 3.3 3.6 3.9 4.2 4.5 4.8 INPUT VOLTAGE (V) Figure 25. Pulse-Skipping Threshold vs. Input Voltage for ADP2106 25°C A CH1 1V 5.1 5.4 5.7 CH3 5V 135 120 105 25° 5.1 5.4 5.7 2.7 Figure 27. Pulse-Skipping Threshold vs. Input Voltage for ADP2105 ...
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... PMOS POWER SWITCH 100 80 NMOS SYNCHRONOUS RECTIFIER –40 – JUNCTION TEMPERATURE (°C) Figure 30. Switch On Resistance vs. Temperature—ADP2106 and ADP2107 LX (SWITCH) NODE 3 1 OUTPUT VOLTAGE (AC-COUPLED) 4 INDUCTOR CURRENT CH1 50mV M 2µs CH3 2V CH4 200mAΩ Figure 31. PFM Mode of Operation at Very Light Load (10 mA) 4 ...
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... Figure 35. Current Limit Behavior of ADP2107 (Frequency Foldback) 3 Δ: 2.86A @: 2.86A CH3 1.8V CH1 CH3 5V Figure 36. Startup and Shutdown Waveform (C Rev Page ADP2105/ADP2106/ADP2107 ENABLE VOLTAGE OUTPUT VOLTAGE INDUCTOR CURRENT 1V M 400µs A CH1 CH4 500mAΩ T 20. → SS Time = 1 ms) SS 1.84V ...
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... When the output voltage dips below regulation, the ADP2105/ ADP2106/ADP2107 enter PWM mode for a few oscillator cycles to increase the output voltage back to regulation. During the wait time between bursts, both power switches are off, and the output capacitor supplies all the load current ...
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... The ADP2105/ADP2106/ADP2107 include soft start circuitry to limit the output voltage rise time to reduce inrush current at startup. To set the soft start period, connect the soft start capacitor (C ) from SS to AGND. When the ADP2105/ADP2106/ADP2107 SS are disabled the input voltage is below the undervoltage lockout threshold internally discharged ...
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... R C COMP Figure 37. Typical Applications Circuit for Fixed Output Voltage Options of ADP2105/ADP2106/ADP2107(x OFF Figure 38. Typical Applications Circuit for Adjustable Output Voltage Option of ADP2105/ADP2106/ADP2107(ADJ) into account when calculating resistor values. The FB bias current can be ignored for a higher divider string current, but this degrades efficiency at very light loads ...
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... Table 6. Minimum Inductor Value for Common Output Voltage Options for the ADP2105 ( OUT 1.2 V 1.5 V 1.8 V 2.5 V 3.3 V Table 7. Minimum Inductor Value for Common Output Voltage Options for the ADP2106 (1 OUT 1 1 1.8 V 2.5 V 3.3 V (MAX ) Table 8 ...
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... F For the ADP2105 recommended that each PWIN pin be bypassed with a 4.7 μF or larger input capacitor. For the ADP2106, bypass each PWIN pin with a 10 μF and a 4.7 μF capacitor, and for the ADP2107, bypass each PWIN pin with a 10 μF capacitor. ...
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... INPUT FILTER The IN pin is the power source for the ADP2105/ADP2106/ ADP2107 internal circuitry, including the voltage reference and current sense amplifier that are sensitive to power supply noise. To prevent high frequency switching noise on the PWIN pins from corrupting the internal circuitry of the ADP2105/ADP2106/ ADP2107, a low-pass RC filter should be placed between the IN pin and the PWIN1 pin ...
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... OUTPUT CAPACITOR = 22µF + 22µF –30 COMPENSATION RESISTOR = 180kΩ COMPENSATION CAPACITOR = 56pF – FREQUENCY (kHz) NOTES 1. EXTERNAL COMPONENTS WERE CHOSEN FOR A 5% OVERSHOOT FOR A 1A LOAD TRANSIENT. Figure 41. ADP2106 Bode Plot 5 LOOP GAIN LOOP PHASE ...
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... A CH3 700mA CH3 700mA CH3 700mA Rev Page ADP2105/ADP2106/ADP2107 T OUTPUT CURRENT OUTPUT VOLTAGE (AC-COUPLED) LX NODE (SWITCH NODE) CH1 2.00V CH2 100mV~ M 20.0µs A CH3 CH3 1.00A Ω T 10.00% OUTPUT CAPACITOR: 22µF + 4.7µF INDUCTOR: SD14, 2.5µH COMPENSATION RESISTOR: 135kΩ ...
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... ADP2105/ADP2106/ADP2107 EFFICIENCY CONSIDERATIONS Efficiency is the ratio of output power to input power. The high efficiency of the ADP2105/ADP2106/ADP2107 has two distinct advantages. First, only a small amount of power is lost in the dc- to-dc converter package that reduces thermal constraints. Second, the high efficiency delivers the maximum output power for the given input power, extending battery life in portable applications ...
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... D)] × reliably from a thermal point of view. OUT 2 ≈ 400 mW Rev Page ADP2105/ADP2106/ADP2107 for the LFCSP_VQ package is 40°C/W, as shown in = θ × 40°C/W × 0. 16° 85°C + 16°C = 101°C A ...
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... Figure 40, two 22 μF X5R MLCC capacitors from Murata (GRM21BR60J226M) are sufficient for this application. 6. Because the ADP2106 is being used in this application, the input capacitors are 10 μF and 4.7 μF X5R Murata capacitors (GRM21BR61A106K and GRM21BR61A475K). 7. The input filter consists of a small 0.1 μF ceramic capacitor ⎡ ...
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... For popular output voltage options at 80 kHz crossover fre Figure 38). Table 11. Recommended External Com 1 Part V (V) C (μ F) OUT IN1 ADP2105(ADJ) 0.9 4.7 ADP2105(ADJ) 1.2 4.7 ADP2105(ADJ) 1.5 4.7 ADP2105(ADJ) 1.8 4.7 ADP2105(ADJ) 2.5 4.7 ADP2105(ADJ) 3.3 4.7 ADP2106(ADJ) 0.9 4.7 ADP2106(ADJ) 1.2 4.7 ADP2106(ADJ) 1.5 4.7 ADP2106(ADJ) 1.8 4.7 ADP2106(ADJ) 2.5 4.7 ADP2106(ADJ) 3.3 4.7 ADP2107(ADJ) 0.9 10 ADP2107(ADJ) 1.2 10 ADP2107(ADJ) 1.5 10 ADP2107(ADJ) 1.8 10 ADP2107(ADJ) 2.5 10 ADP2107(ADJ) 3.3 10 ADP2105-1.2 1.2 4.7 ADP2105-1.5 1.5 4.7 ADP 2105-1.8 1.8 4.7 ADP2105-3.3 3.3 4.7 ADP 2106-1.2 1.2 4.7 ADP 2106-1.5 1.5 4.7 ADP210 6-1.8 1.8 4 ...
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... ADP2107(ADJ) 0.9 10 ADP2107(ADJ) 1.2 10 ADP2107(ADJ) 1 ADP2107(ADJ) 1 ADP2107(ADJ) 2 ADP2107(ADJ) 3 ADP2105-1.2 1 ADP2105-1.5 1 ADP2105-1.8 1 ADP2105-3.3 3 ADP2106-1.2 1 ADP2106-1.5 1 ADP2106-1.8 1 ADP2106-3.3 3 ADP2107-1.2 1.2 10 ADP2107-1.5 1.5 10 ADP2107-1.8 1 ADP2107-3.3 3 4.7μF 0805 X5R 10V Mura ta—GRM 21BR 61A475KA7 2 4.7μF 0805 X5R 10V Murata—GRM21BR61A475KA73L. 10μF 0805 X5R 10V Murata—GRM21BR61A106KE19L. 22μF 0805 X5R 6.3V Murata—GRM21BR60J226ME39L. ...
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... CIRCUIT BOARD LAYOUT RECOMMENDATIONS Good circui t board layout is essential to obtaining the best performance from the ADP2105/ADP2106/ADP21 circui t layout degrades utp ut ripple, a electromagnetic i terfer n ence (E MI) and elec compatibility ( rforma nce. Figure 54 and F igu re 55 show eal circui the ADP2105/A ...
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... PLACE THE COMPENSATION COMPONENTS AS CLOSE TO THE COMP PIN AS POSSIBLE. ANALOG GROUND PLANE CONNECT THE GROUND RETURN OF ALL SENSITIVE ANALOG CIRCUITRY SUCH AS COMPENSATION AND OUTPUT VOLTAGE DIVIDER TO THE ANALOG GROUND PLANE. Figure 54. Recommended Layout of Top Layer of ADP2105/ADP2106/ADP2107 7 (1 VCC R3 INPUT VOLTAGE = 2.7V TO 5.5V 0.1µF 10Ω ...
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... AID POWER DISSIPATION. FEEDBACK TRACE: THIS TRACE CONNECTS THE RESISTIVE VOLTAGE DIVIDER ON THE FB PIN TO T PLACE THIS TRACE AS FAR AWAY FROM THE LX NODE AND HIGH CURRENT TRACES AS POSSIBLE TO PREVENT NOISE PICKUP. Figure 55. Recommended Layout of Bottom Layer of ADP2105/ADP2106/ADP2107 ADP2105/ADP2106/ADP2107 GN D POWER GROUND PLANE ...
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... ADP2105/ADP2106/ADP2107 APPLICATION CIRCUITS ON OFF 70kΩ 120pF ON OFF 140kΩ 68pF Figure 57. Application Circuit—V 0.1μF V INPUT VOLTAGE = 5V 10Ω 10μF V OUT GND IN PWIN1 EN LX2 12 2 2.5μH GND PGND 11 ADP2107-3.3 10μF GND LX1 ...
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... GND PWIN2 4 9 COMP SS AGND 1nF 135kΩ 82pF Figure 59. Application Circuit—V = Li-Ion Battery Rev Page ADP2105/ADP2106/ADP2107 1 4.7μF 2 2.7μH V OUTPUT VOLTAGE = 1.8V OUT 1 1 22μF 22μF LOAD 4.7μF MURATA X5R 0805 4.7μF: GRM21BR61A475KA73L 22μF: GRM21BR60J226ME39L 2 TOKO 1098AS-DE2812: 2.7μ ...
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... Figure 60. Application Circuit—V 0.1μF V INPUT VOLTAGE = 5V 10Ω 10μ GND IN PWIN1 LX2 12 2 2.5μH PGND 11 ADP2106-ADJ LX1 PWIN2 9 1 4.7μF COMP SS AGND MURATA X5R 0805 1nF 4.7μF: GRM21BR61A475KA73L 10μF: GRM21BR61A106KE19L 22μF: GRM21BR60J226ME39L 2 COILTRONICS SD14: 2.5μ ...
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... ADP2106ACPZ-3.3- ADP2106ACPZ-R7 1 ADP2107ACPZ-1.2- ADP2107ACPZ-1.5- ADP2107ACPZ-1.8- ADP2107ACPZ-3.3- ADP2107ACPZ- ADP2105-1.8-EVALZ 1 1 ADP2105-EVALZ ADP2106-1.8-EVALZ 1 1 ADP2106-EVALZ 1 ADP2107-1.8-EVALZ 1 ADP2107-EVALZ RoHS Compliant Part. 4.00 0.60 MAX BSC SQ 0.60 MAX 13 12 0.65 BSC TOP 3.75 EXPOSED VIEW BSC SQ (BOTTOM VIEW) 0.50 9 ...
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... ADP2105/ADP2106/ADP2107 NOTES Rev Page ...
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... NOTES ADP2105/ADP2106/ADP2107 Rev Page ...
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... ADP2105/ADP2106/ADP2107 NOTES ©2006–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06079-0-9/08(C) Rev Page ...