ADP2118-EVALZ Analog Devices Inc, ADP2118-EVALZ Datasheet
ADP2118-EVALZ
Specifications of ADP2118-EVALZ
Related parts for ADP2118-EVALZ
ADP2118-EVALZ Summary of contents
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... The ADP2118 runs from input voltages of 2 5.5 V. The output voltage of the ADP2118ACPZ-R7 is adjustable from 0 input voltage (V available in preset output voltage options of 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, and 1.0 V. The ADP2118 requires minimal external parts and provides a high efficiency solution with its integrated power switch, synchronous rectifier, and internal compensation ...
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... ADP2118 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution .................................................................................. 5 Pin Configuration and Function Descriptions ............................. 6 Typical Performance Characteristics ............................................. 7 Functional Block Diagram ............................................................ 13 Theory of Operation ...................................................................... 14 Control Scheme .......................................................................... 14 PWM Mode Operation .............................................................. 14 PFM Mode Operation ................................................................ 14 Slope Compensation .................................................................. 14 Enable/Shutdown ....................................................................... 14 REVISION HISTORY 10/09— ...
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... VIN = PVIN = 5.5 V, full frequency TRK = 500 mV FREQ = VIN FREQ = GND All switching frequency FB rising threshold FB rising hysteresis FB falling threshold FB falling hysteresis From FB to PGOOD PGOOD PGOOD Rev Page ADP2118 Min Typ Max Unit 2.3 5.5 V 2.3 5.5 V 100 150 μA ...
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... ADP2118 Parameter EN EN Input Rising Threshold EN Input Hysteresis EN Pull-Down Resistor THERMAL Thermal Shutdown Threshold Thermal Shutdown Hysteresis 1 Specified by the circuit in Figure Pin-to-pin measurements. 3 Guaranteed by design. Symbol Test Conditions/Comments VIN = 2 5.5 V VIN = 2 5.5 V Rev Page Min Typ Max Unit 1.12 1.2 1.28 ...
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... Boundary Conditions −65°C to +150°C θ is measured using natural convection on a JEDEC 4-layer JEDEC J-STD-020 JA board, and the exposed pad is soldered to the printed circuit board with thermal vias. ESD CAUTION Rev Page ADP2118 θ Unit JA 38.3 °C/W ...
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... Oscillator and Synchronization section for details). CCM/PFM Selection (MODE). When this pin is connected to VIN, PFM mode is disabled and the ADP2118 only works in continuous conduction mode (CCM). When this pin is connected to ground, PFM mode is enabled and becomes active at light loads ...
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... OUTPUT CURRENT (A) Figure 8. Efficiency (1.2 MHz PFM) vs. Output Current IN 100 INDUCTOR SUMIDA CDRH105R2R2NC 0 0 0.5 1.0 1.5 2.0 OUTPUT CURRENT (A) = 3.3 V, PFM) vs. Output Current IN ADP2118 V = 1.0V OUT V = 1.2V OUT V = 1.5V OUT V = 1.8V OUT V = 2.5V OUT 2.5 3 1.0V OUT V = 1.2V OUT V = 1.5V ...
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... ADP2118 100 INDUCTOR SUMIDA CDRH105R2R2NC 0 0 0.5 1.0 1.5 OUTPUT CURRENT(A) Figure 10. Efficiency (600 kHz FPWM) vs. Output Current IN 120 115 110 105 100 2.3 2.7 3.1 3.5 3.9 4.3 V (V) IN Figure 11. Quiescent Current vs. V 130 120 110 100 –40° +25°C ...
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... Figure 20. UVLO Threshold vs. Temperature (V 5.5 5.4 5.3 5.2 5.1 5.0 4.9 4.8 4.7 4.6 2.3 100 120 = 3 Rev Page ADP2118 T = –40° +25° +125°C J 2.7 3.1 3.5 3.9 4.3 4.7 5 600 kHz IN RISING FALLING – ...
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... ADP2118 OUT 1 PGOOD CH1 500mV CH2 5V M1ms CH4 2A Ω CH3 5V T 20.40% Figure 22. Soft Start with Full Load (1.2 MHz CH1 50mV M200µs CH4 2A Ω T 30.40% Figure 23. Load Transient (1.2 MHz, PFM, V SYNC CH2 2V M 400ns CH3 2V T –8ns Figure 24. Synchronized to 1 MHz In Phase ...
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... OUT 640mV CH1 50mV V (AC) OUT 3.90V CH1 10mV Figure 33. Continuous Conduction Mode (CCM) Rev Page ADP2118 M2ms A CH1 670mV CH4 5A Ω T 59.60% Figure 31. Output Short Recovery (AC CH2 5V M4µs A CH4 1.72A CH4 1A Ω T 64.60% Figure 32. PFM Mode M400ns A CH2 3.1V CH2 5V CH4 2A Ω ...
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... ADP2118 –12 –24 –36 –48 CROSS FREQUENCY: 102kHz PHASE MARGIN: 50° –60 100 1k 10k 100k FREQUENCY (Hz) Figure 34. Bode Plot 1 OUT –12 –24 –36 –48 CROSS FREQUENCY: 81kHz PHASE MARGIN: 63° –60 100 1k 10k 100k FREQUENCY (Hz) Figure 35. Bode Plot 1 OUT –12 –24 – ...
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... VIN EN Z COMP UVLO ERRO AMP LOGIC SKIP CONTROL CMP Gm SKIP MODE THRESHOLD CLK SLOPE COMPENSATION OSCILLATOR SYNC/MODE FREQ Figure 40. Functional Block Diagram Rev Page PVIN PMOS CURRENT SENSE AMP PFET SW NFET NMOS CURRENT SENSE AMP ZERO CURRENT PGND CMP ADP2118 ...
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... When operating in PFM mode at light loads, the switching frequency is adjusted to regulate the output voltage. The ADP2118 operates in PWM mode when the load current is greater than the pulse-skipping threshold current. At load currents below this value, the regulator smoothly transitions to the PFM mode of operation ...
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... OSCILLATOR AND SYNCHRONIZATION The internal oscillator of ADP2118 can be set to 600 kHz or 1.2 MHz. Drive the FREQ pin low for 600 kHz; drive FREQ pin high for 1.2 MHz. To synchronize the ADP2118, drive an external clock at the SYNC/MODE pin. The frequency of the external clock can be in the range of 600 kHz to 1 ...
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... The load transient response depends on the inductor, output capacitor, and the control loop. The ADP2118 has integrated loop compensation for simple power design. Table 5 and Table 6 show the typical recom- mended inductors and capacitors for the ADP2118. X5R or X7R ceramic capacitors are highly recommended. Table 5. Recommended L and C V ...
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... D RMS O VOLTAGE TRACKING The ADP2118 includes a tracking feature that allows the ADP2118 output (slave voltage configured to track an external voltage (master voltage), as shown in Figure 42. A common application is coincident tracking, shown in Figure 43. = 600 kHz S Coincident tracking limits the slave output voltage to be the C (μ ...
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... C3225X5R0J107M TDK IN OUT 10kΩ Figure 45. 1 1.2 MHz Step-Down Regulator, Force Continuous Conduction Mode C1 0.1µF R1 10Ω R2 10kΩ SYNC/MODE PVIN 12 FREQ ADP2118 TRK MSS1038-102NL COILCRAFT C : C3225X5R0J107M TDK BOT TOP C : GRM32ER61A476KE20 MURATA OUT 15kΩ 47.5kΩ Figure 46. 2 1.2 MHz Step-Down Regulator, Enable PFM Mode Rev ...
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... Out of Phase with the External Clock Rev Page 100µF X5R, 6.3V L 1µH V OUT 1.8V C OUT 3A 100µF X5R, 6.3V : C3225X5R0J107M TDK 100µF X5R, 6.3V L 1µH V OUT 1.5V C OUT 3A 100µF X5R, 6.3V : C3225X5R0J107M TDK ADP2118 ...
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... ADP2118 R V MASTER R 2.21kΩ C1 0.1µF R1 10Ω R2 10kΩ SYNC/MODE PVIN 12 2 FREQ SW 11 TRKT ADP2118 10kΩ 3 TRK TRKB MSS1038-102NL COILCRAFT R R BOT TOP OUT 2.21kΩ 10kΩ Figure 49. 3 1.2 MHz Step-Down Regulator, Tracking Mode Rev Page ...
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... ADP2118ACPZ-1.2-R7 −40°C to +125°C ADP2118ACPZ-1.5-R7 1 −40°C to +125°C 1 ADP2118ACPZ-1.8-R7 −40°C to +125°C ADP2118ACPZ-2.5-R7 1 −40°C to +125°C 1 ADP2118ACPZ-3.3-R7 −40°C to +125°C ADP2118-EVALZ RoHS Compliant Part. 4.10 0.35 4.00 SQ 0.30 3.90 0.25 13 0.65 12 BSC EXPOSED PAD ...
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... ADP2118 NOTES Rev Page ...
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... NOTES Rev Page ADP2118 ...
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... ADP2118 NOTES ©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08301-0-10/09(A) Rev Page ...