ADP2105-EVALZ Analog Devices Inc, ADP2105-EVALZ Datasheet
ADP2105-EVALZ
Specifications of ADP2105-EVALZ
Related parts for ADP2105-EVALZ
ADP2105-EVALZ Summary of contents
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... 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 1.164 1.236 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 ≤ μ ...
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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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... Rev Page 100 INDUCTOR: SD3814, 3.3µH DCR: 93mΩ 25° 100 LOAD CURRENT (mA) Figure 8. Efficiency—ADP2105 (1.8 V Output) 100 INDUCTOR: D62LCB, 2µH 55 DCR: 28mΩ 25° 100 1k LOAD CURRENT (mA) Figure 9. Efficiency—ADP2106 (1.2 V Output) ...
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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° ...
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... Figure 19. Peak Current Limit of ADP2105 190 180 170 160 150 140 130 120 110 100 4.0 4.4 4.8 5.2 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° ...
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... 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 195 180 165 150 135 120 105 25° 2.7 5.1 5.4 5.7 Figure 28. Pulse-Skipping Threshold vs. Input Voltage for ADP2107 Rev Page ...
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... PMOS POWER SWITCH 150 140 130 NMOS SYNCHRONOUS RECTIFIER 120 110 100 2.7 3.0 3.3 3.6 3.9 4.2 INPUT VOLTAGE (V) Figure 29. Switch On Resistance vs. Temperature—ADP2105 140 120 PMOS POWER SWITCH 100 80 NMOS SYNCHRONOUS RECTIFIER –40 – JUNCTION TEMPERATURE (°C) Figure 30. Switch On Resistance vs. Temperature— ...
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... T 45% 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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... ADP2105/ADP2106/ADP2107 discharge the soft start capacitor, causing a new soft start cycle every time they are re-enabled. Synchronous Rectification In addition to the P-channel MOSFET switch, the ADP2105/ ADP2106/ADP2107 include an integrated N-channel MOSFET synchronous rectifier. The synchronous rectifier improves effi- ciency, especially at low output voltage, and reduces cost and board space by eliminating the need for an external rectifier ...
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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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... Ensure that the maximum rms current of the inductor is greater than the maximum load current and that the saturation current of the inductor is greater than the peak current limit of the converter used in the application. Table 6. Minimum Inductor Value for Common Output Voltage Options for the ADP2105 ( OUT 1 ...
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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 + 4.7µF –30 COMPENSATION RESISTOR = 267kΩ COMPENSATION CAPACITOR = 39pF – FREQUENCY (kHz) NOTES 1. EXTERNAL COMPONENTS WERE CHOSEN FOR A 5% OVERSHOOT FOR A 1A LOAD TRANSIENT. Figure 43. ADP2105 Bode Plot 3 ADP2106 0 45 PHASE 90 MARGIN = 48° 135 180 –10 – ...
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... CH3 1.00A Ω T 10.00% OUTPUT CAPACITOR: 22µF + 4.7µF INDUCTOR: SD14, 2.5µH COMPENSATION RESISTOR: 135kΩ COMPENSATION CAPACITOR: 82pF F igure 50 Load Transient Response for ADP2105-1.2 with External Components Chosen for 10% Overshoot T OUTPUT CURRENT OUTPUT VOLTAGE (AC-COUPLED) LX NODE (SWITCH NODE) CH1 2.00V CH2 100mV~ M 20.0µ ...
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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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... Because the junction temperature of the converter is below the maximum junction temperature of 125°C, this application operates 2 × (1 − 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° ...
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... ADP2105/ADP2106/ADP2107 DESIGN EXAMPLE Consider an application with the following specifications: Input Voltage = 3 4.2 V. Output Voltage = 2 V. Typical Output Current = 600 mA. Maximum Output Current = 1.2 A. Soft Start Time = 2 ms. Overshoot ≤ 100 mV under all load transient conditio 1. Choose the dc-to-dc converter that satisfies the maximum output current requirement ...
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... 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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... ADP2105(ADJ) 2 ADP2105(ADJ) 3 ADP2106(ADJ) 0 ADP2106(ADJ) 1 ADP2106(ADJ) 1 ADP2106(ADJ) 1 ADP2106(ADJ) 2 ADP2106(ADJ) 3 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 DP2106/ADP2 107 t o achiev performance ...
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... 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 GND PWIN2 10μF MURATA X5R 0805 ...
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... V IN 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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... ADP2105/ADP2106/ADP2107 ON EN OFF 1 GND 2 GND 3 GND 4 180kΩ 56pF 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 10μ ...
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... A 1 ADP2106ACPZ-1.8-R7 1.5 A 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 0.40 8 0.30 ...
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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 ...