ADP151 Analog Devices, ADP151 Datasheet
ADP151
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ADP151 Summary of contents
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... Post dc-to-dc regulation Portable medical devices GENERAL DESCRIPTION The ADP151 is an ultralow noise, low dropout linear regulator that operates from 2 5.5 V and provides up to 200 mA of output current. The low 140 mV dropout voltage at 200 mA load improves efficiency and allows operation over a wide input voltage range ...
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... ADP151 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Typical Application Circuit ............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Input and Output Capacitor, Recommended Specifications .. 4 Absolute Maximum Ratings ............................................................ 5 Thermal Data ................................................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution .................................................................................. 5 Pin Configurations and Function Descriptions ........................... 6 REVISION HISTORY 3/11—Rev Rev. D Changes to Current-Limit Threshold Temperature Range ......... 4 Added EPAD Notation ...
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... V) to 5.5 V −3 OUT + 0 5.5 V −2.5 OUT + 0 5.5 V −2.5 OUT + 0 5.5 V −2 OUT = −40°C to +125°C −0.05 0.006 0.003 0.004 0.002 10 150 135 ADP151 Max Unit 5.5 V µA 20 µA µA 40 µA µA 90 µA μA 350 μA µA 1.0 µ +1.5 % ...
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... ADP151 Parameter Symbol 3 START-UP TIME t START-UP CURRENT-LIMIT THRESHOLD 4 I LIMIT UNDERVOLTAGE LOCKOUT Input Voltage Rising UVLO Input Voltage Falling UVLO Hysteresis UVLO THERMAL SHUTDOWN Thermal Shutdown Threshold TS Thermal Shutdown Hysteresis TS EN INPUT EN Input Logic High Input Logic Low Input Pull-Down Resistance ...
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... THERMAL DATA Absolute maximum ratings apply individually only, not in combination. The ADP151 can be damaged when the junction temperature limits are exceeded. Monitoring ambient temperature does not guarantee that T is within the specified temperature J limits ...
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... Regulated Output Voltage. Bypass VOUT to GND with a 1 µF or greater capacitor. No Connect. Not connected internally. Exposed Pad. The exposed pad must be connected to ground. The exposed pad enhances the thermal performance of the package. Rev Page VOUT 6 VIN ADP151 TOP VIEW (Not to Scale) GND 3 ...
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... JUNCTION TEMPERATURE (°C) Figure 10. Ground Current vs. Junction Temperature 1k 100 10 0.01 0 (mA) LOAD Figure 11. Ground Current vs. Load Current 1k LOAD = 10µA LOAD = 10mA LOAD = 100µA LOAD = 100mA LOAD = 1mA LOAD = 200mA 100 10 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 V (V) IN Figure 12. Ground Current vs. Input Voltage ADP151 125 100 1000 5.2 5.4 ...
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... ADP151 0. 3. 3. 4. 5.5V IN 0.30 0.25 0.20 0.15 0.10 0.05 0 –50 – TEMPERATURE (°C) Figure 13. Shutdown Current vs. Temperature at Various Input Voltages 120 100 (mA) LOAD Figure 14. Dropout Voltage vs. Load Current 3.40 3.35 3.30 3.25 3.20 3.15 3.10 3.05 3.00 3.10 3.15 3.20 3.25 3.30 3.35 V (V) IN Figure 15. Output Voltage vs. Input Voltage (in Dropout) 75 100 125 100 1000 Figure 17 ...
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... FREQUENCY (Hz) Figure 23. Output Noise Spectral Density vs. Frequency mA μF IN LOAD OUT T LOAD CURRENT OUT CH1 200mA CH2 50mV M20µs A CH1 T 10.00 μ OUT ADP151 100 1k 3.3V 2.8V 1.2V 1.1V 100k 64.0mA = 200 mA LOAD ...
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... ADP151 T INPUT VOLTAGE 2 V OUT 1 CH1 1V CH2 2mV M10µs T 10.80% Figure 25. Line Transient Response OUT CH1 4.56V = 1 μ 200 mA Figure 26. Line Transient Response, C LOAD Rev Page INPUT VOLTAGE V OUT CH1 1V CH2 2mV M10µs A CH1 T 10.80 μF, I ...
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... VOUT The ADP151 is available in 16 output voltage options, ranging R1 from 1 3.3 V. The ADP151 uses 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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... ADP151. Transient response to changes in load current is also affected by output capacitance. Using a larger value of output capacitance improves the transient response of the ADP151 to large changes in load current. Figure 28 shows the transient responses for an output capacitance value of 1 µF. T LOAD CURRENT ...
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... ENABLE FEATURE The ADP151 uses the EN pin to enable and disable the VOUT pin under normal operating conditions. As shown in Figure 30, when a rising voltage on EN crosses the active threshold, VOUT turns on. When a falling voltage on EN crosses the inactive threshold, VOUT turns off. 3.0 2.5 2.0 1.5 1.0 0 0.5 1.0 1.5 ENABLE VOLTAGE Figure 30 ...
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... ADP151 Figure 34 through Figure 38 show the typical performance of the 4 V LDO circuit. The noise performance of the 4 V LDO circuit is only about 1 μV worse than the same LDO used at 3.3 V because the output noise of the circuit is almost solely determined by the LDO and not the external components ...
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... Consider the case where a hard short from VOUT to ground occurs. At first, the ADP151 current limits, so that only 300 mA is conducted into the short. If self-heating of the junction causes its temperature to rise above 150°C, thermal shutdown activates, turning off the output and reducing the output current to 0 ...
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... ADP151 140 MAXIMUM JUNCTION TEMPERATURE 120 100 1mA I LOAD LOAD I = 10mA I LOAD LOAD I = 50mA I LOAD LOAD 0 0.3 0.8 1.3 1.8 2.3 2.8 V – V (V) IN OUT Figure 39. WLCSP 500 PCB Copper, T 140 MAXIMUM JUNCTION TEMPERATURE 120 100 1mA I LOAD LOAD I = 10mA I LOAD ...
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... I = 200mA LOAD LOAD 0.8 1.3 1.8 2.3 2.8 3.3 3.8 4.3 V – V (V) IN OUT Figure 49. TSOT 100 PCB Copper 50°C A MAXIMUM JUNCTION TEMPERATURE I = 1mA I = 100mA LOAD LOAD I = 10mA I = 150mA LOAD LOAD I = 50mA I = 200mA LOAD LOAD 0.8 1.3 1.8 2.3 2.8 3.3 3.8 4.3 V – V (V) IN OUT 2 Figure 50. TSOT PCB Copper 50°C A ADP151 4.8 4.8 4.8 ...
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... ADP151 140 MAXIMUM JUNCTION TEMPERATURE 120 100 1mA I LOAD LOAD I = 10mA I LOAD LOAD I = 50mA I LOAD LOAD 0 0.3 0.8 1.3 1.8 2.3 2.8 V – V (V) IN OUT Figure 51. LFCSP 500 PCB Copper, T 140 MAXIMUM JUNCTION TEMPERATURE 120 100 1mA I LOAD LOAD I = 10mA I LOAD ...
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... I = 200mA LOAD LOAD 0 0.3 0.8 1.3 1.8 2.3 2.8 3.3 3.8 V – V (V) IN OUT Figure 58. TSOT 85°C A 140 MAXIMUM JUNCTION TEMPERATURE 120 100 1mA I = 100mA LOAD LOAD I = 10mA I = 150mA LOAD LOAD I = 50mA I = 200mA LOAD LOAD 0 0.3 1.3 2.3 3.3 V – V (V) IN OUT Figure 59. LFCSP 85°C A ADP151 4.3 4.8 4.3 5.3 ...
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... ADP151 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 ADP151. However, as listed in Table 6, a point of diminishing returns is eventually reached, beyond which an increase in the copper size does not yield significant heat dissipation benefits. ...
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... FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. 0.35 0.20 REF 0.30 0.25 Figure 65. 6-Lead Lead Frame Chip Scale Package [LFCSP_UD] 2.00 mm × 2.00 mm Body, Ultra Thin, Dual Lead (CP-6-3) Dimensions show in millimeters Rev Page 8° 4° 0.60 0° 0.45 0. 0.280 0.260 0.240 B BOTTOM VIEW (BALL SIDE UP) 0.65 BSC 6 1.10 PAD 1.00 0.90 1 ADP151 ...
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... ADP151UJZ-REDYKIT ADP151CPZ-REDYKIT ADP151CB-3.3-EVALZ RoHS Compliant Part. 2 For additional voltage options for the ADP151ACBZ package option, contact a local Analog Devices, Inc., sales or distribution representative. 3 The ADP151ACBZ package option is halide free. Output Voltage (V) 2 Package Description 1.2 4-Ball WLCSP 1 ...
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... NOTES Rev Page ADP151 ...
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... ADP151 NOTES ©2010–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08627-0-3/11(D) Rev Page ...