ADP124-3.3-EVALZ Analog Devices Inc, ADP124-3.3-EVALZ Datasheet
ADP124-3.3-EVALZ
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ADP124-3.3-EVALZ Summary of contents
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... The low 210 μA of quiescent current with a 500 mA load makes the ADP124/ADP125 ideal for battery-operated portable equipment. The ADP124 is capable of 31 fixed-output voltages from 1. 3.3 V. The ADP125 is the adjustable version of the device and allows the output voltage to be set between 0.8 V and 5 external voltage divider ...
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... ADP124/ADP125 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Typical Application Circuits ............................................................ 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Recommended Capacitor Specifications ................................... 4 Absolute Maximum Ratings ............................................................ 5 Thermal Data ................................................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution .................................................................................. 5 Pin Configurations and Function Descriptions ........................... 6 REVISION HISTORY 9/10—Rev Rev. A Added 8-Lead LFCSP Package ..................................... Throughout Added Figure 4 and Figure 6 (Renumbered Sequentially) ......... 6 Changes to Thermal Conditions Section and Table 6 ...
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... V ≤ V ≤ 5 VIN or GND EN = VIN or GND −40°C to +125° −40°C to +125°C RISE −40°C to +125°C FALL 25°C HYS A Rev Page ADP124/ADP125 = 10 mA; C OUT IN Min Typ 2 160 210 0.1 − 5.5 V, −2 OUT 0.495 0.500 0.485 0.500 − ...
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... ADP124/ADP125 Parameter Symbol OUTPUT NOISE OUT POWER SUPPLY REJECTION RATIO PSRR ( +1V) IN OUT 1 The current from the external resistor divider network in the case of adjustable voltage output (as with the ADP125) should be subtracted from the ground current measured. 2 Accuracy when VOUT is connected directly to ADJ. When VOUT voltage is set by external feedback resistors, absolute accuracy in adjust mode depends on the tolerances of the resistors used ...
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... THERMAL DATA Absolute maximum ratings apply individually only, not in combination. The ADP124/ADP125 can be damaged when the junction temperature limits are exceeded. Monitoring ambient temperature does not guarantee that T J specified temperature limits. In applications with high power dissipation and poor thermal resistance, the maximum ambient temperature may have to be limited ...
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... TOP VIEW VOUT SENSE 3 (Not to Scale) GND 4 NOTES CONNECT. 2. THE EXPOSED PAD MUST BE CONNECTED TO GROUND. Figure 4. ADP124 Fixed Output LFCSP Pin Configuration Table 5. Pin Function Descriptions Mnemonic Pin No. ADP124 ADP125 Description 1 VOUT VOUT Regulated Output Voltage. Bypass VOUT to GND with a 1 µF or greater capacitor. ...
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... IN OUT A +85 +125 250 200 150 100 100 1000 250 230 210 190 170 150 130 110 5.00 5.50 Rev Page ADP124/ADP125 300 250 I = 500mA OUT 200 I = 300mA OUT 150 I = 100mA OUT I OUT I = 1mA 100 OUT I = 10mA OUT 50 – ...
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... ADP124/ADP125 0.7 0 5. 4.20 0 3.80 IN 0.2 0.1 0 –50 – TEMPERATURE (°C) Figure 13. Shutdown Current vs. Temperature at Various Input Voltages 120 100 (mA) OUT Figure 14. Dropout Voltage vs. Load Current 450 400 350 300 I = 10mA OUT 250 I = 100mA OUT I = 300mA OUT ...
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... Figure 21. Power Supply Rejection Ratio vs. Headroom Voltage ( 2.8 V OUT 1M 10M = 4 5.2 V OUT IN 1M 10M Figure 23. Output Noise vs. Load Current and Output Voltage, V 100k 1M 10M − OUT Rev Page ADP124/ADP125 4.2V OUT 3.3V OUT 2.8V OUT 0 10 100 1k 10k FREQUENCY (Hz) Figure 22. Output Noise Spectrum, V ...
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... ADP124/ADP125 I OUT 1mA TO 500mA LOAD STEP OUT 3.3V OUT 500mA Ω CH1 B CH2 50.0mV B M40.0µs A CH1 9.800% Figure 25. Load Transient Response 4.5V VOLTAGE STEP V OUT 2 1 CH1 1.00V B CH2 2.00mV B M10.0µ 9.600% Figure 26. Line Transient Response, Load Current = 1 mA ...
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... Note that in shutdown, the output is turned off and the divider current is 0. The ADP124/ADP125 use the EN pin to enable and disable the VOUT pin under normal operating conditions. When EN is high, VOUT turns on; when EN is low, VOUT turns off. For automatic startup, EN can be tied to VIN ...
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... Input and Output Capacitor Properties Any good quality ceramic capacitors can be used with the ADP124/ADP125, as long as the capacitor meets the minimum capacitance and maximum ESR requirements. Ceramic capacitors are manufactured with a variety of dielectrics, each with different behavior over temperature and applied voltage. Capacitors must have an adequate dielectric to ensure the minimum capacitance over the necessary temperature range and dc bias conditions ...
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... ADP124/ADP125 inputs and the output behave in a predictable manner during power-up. ENABLE FEATURE The ADP124/ADP125 uses the EN pin to enable and disable the VOUT pin under normal operating conditions. As shown in Figure 33, when a rising voltage on EN crosses the active threshold, VOUT turns on. Conversely, when a falling voltage on EN crosses the inactive threshold, VOUT turns off ...
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... Consider the case where a hard short from VOUT to GND occurs. At first, the ADP124/ADP125 limit the current so that only 750 mA is conducted into the short. If self-heating causes the junction temperature to rise above 150°C, thermal shutdown activates, turning off the output and reducing the output current to zero. When the junction temperature cools to less than 135° ...
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... MAX J 1.4 1.6 1.8 2.0 Figure 40. Junction Temperature vs. Power Dissipation, MSOP package 140 120 100 2 6400 mm 2 500 MAX J Figure 41. Junction Temperature vs. Power Dissipation, LFCSP package Rev Page ADP124/ADP125 0.2 0.4 0.6 0.8 1.0 1.2 1.4 TOTAL POWER DISSIPATION (W) LFCSP 50° 25° ...
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... PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS Heat dissipation from the package can be improved by increasing the amount of copper attached to the pins of the ADP124/ADP125. However, as shown in Table 6, a point of diminishing returns eventually is reached, beyond which an increase in the copper size does not yield significant heat dissipation benefits. ...
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... BSC 0.25 0.18 Figure 46. 8-Lead Lead Frame Chip Scale Package [LFCSP_UD × Body, Ultra Thin, Dual Lead (CP-8-8) Dimensions shown in millimeters Rev Page ADP124/ADP125 1.83 1.73 1.63 FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. ...
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... ADP124ACPZ-3.3-R7 –40°C to +125°C ADP125ACPZ-R7 –40°C to +125°C ADP125ARHZ-R7 –40°C to +125°C ADP125ARHZ –40°C to +125°C ADP124-3.3-EVALZ ADP125-EVALZ ADP124CP-3.3-EVALZ ADP125CP-EVALZ ADP124RHZ-REDYKIT RoHS Compliant Part fixed-output voltage options from 1. 3.3 V are available. For additional voltage options, contact a local Analog Devices, Inc., sales or distribution representative ...
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... NOTES Rev Page ADP124/ADP125 ...
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... ADP124/ADP125 NOTES ©2009–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08476-0-9/10(A) Rev Page ...