ADP2303ARDZ-5.0 Analog Devices Inc, ADP2303ARDZ-5.0 Datasheet
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ADP2303ARDZ-5.0
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ADP2303ARDZ-5.0 Summary of contents
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FEATURES Wide input voltage range: 3 Maximum load current 2 A for ADP2302 3 A for ADP2303 ±1.5% output accuracy over temperature Output voltage down to 0.8 V 700 kHz switching frequency Current-mode control architecture Automatic ...
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ADP2302/ADP2303 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Typical Applications Circuit............................................................ 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 Thermal Resistance ...................................................................... 4 ESD Caution.................................................................................. 4 Pin Configuration and Function Descriptions............................. 5 ...
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SPECIFICATIONS −40°C to +125°C for minimum/maximum specifications, and Table 1. Parameters VIN Voltage Range Supply Current Shutdown Current Undervoltage Lockout Threshold FB Regulation Voltage Bias Current Resistance Peak ...
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ADP2302/ADP2303 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter VIN, EN, PGOOD SW BST to SW FB, NC Operating Junction Temperature Range Storage Temperature Range Soldering Conditions Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 BST Bootstrap Supply for the High-Side MOSFET Driver. A 0.1 μF capacitor is connected between SW and BST to provide a floating driver voltage for ...
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ADP2302/ADP2303 TYPICAL PERFORMANCE CHARACTERISTICS 25°C, unless otherwise noted 100 INDUCTOR: VLF10040T-6R8N4R5 DIODE: SSB43L 40 0 0.5 1.0 1.5 OUTPUT CURRENT (A) Figure 4. ADP2303 Efficiency, V 100 ...
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V (V) IN Figure 10. ADP2302 Line Regulation 3 OUT 0.20 0.15 0.10 0.05 0 –0.05 –0.10 –0.15 –0. ...
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ADP2302/ADP2303 810 790 770 750 730 710 690 670 650 630 610 590 –40 – TEMPERATURE (°C) Figure 16. Frequency vs. Temperature 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 –40 – ...
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TEMPERATURE (°C) Figure 22. Minimum Off Time vs. Temperature 180 170 160 150 140 130 120 110 100 90 80 ...
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ADP2302/ADP2303 V OUT CH1 2.00V CH2 10.0V M1.00ms W CH4 2.00A Ω 20.20% CH3 10.0V W Figure 28. Soft Start Without Load, V OUT V (AC) OUT 1 I ...
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V OUT CH1 1.00mV CH2 10.0V M40.0µs W CH4 5.00A Ω T 30.00% Figure 34. Output Short 3 OUT L = 4.7 μ × 47 μF ...
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ADP2302/ADP2303 –16 –32 –48 CROSS FREQUENCY = 32kHz –64 PHASE MARGIN = 59° –80 1k 10k 100k FREQUENCY (Hz) Figure 40. ADP2302 Bode Plot, V OUT L = 6.8 μ × ...
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FUNCTIONAL BLOCK DIAGRAM THERMAL SHUTDOWN SHUTDOWN LOGIC 1.20V OFF 1.2µA OVP 0.880V PGOOD 4 0.680V VIN 2 UVLO SHUTDOWN IC CURRENT OCP SENSE AMPLIFIER BOOT CURRENT REGULATOR LIMIT THRESHOLD R S ...
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ADP2302/ADP2303 THEORY OF OPERATION The ADP2302/ADP2303 are nonsynchronous, step-down, dc-to-dc regulators, each with an integrated high-side power MOSFET. The high switching frequency and 8-lead SOIC package provide a small, step-down, dc-to-dc regulator solution. The ADP2302/ADP2303 can operate with an input ...
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Table 5. Correlation Between f and Pin Voltage Switching Frequency V ≥ 0 0.4 V < V < 0 0.2 V < V ≤ 0.4 V 1/4 f ...
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ADP2302/ADP2303 APPLICATIONS INFORMATION PROGRAMMING OUTPUT VOLTAGE ADP2302/ADP2303 have an adjustable version where the output voltage is programmed through an external resistive divider, as shown in Figure 45. Suggested resistor values for the typical output voltage setting are listed in Table ...
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MAXIMUM INPUT VOLTAGE MINIMUM INPUT VOLTAGE (V) OUT Figure 47. Voltage Conversion Limitations LOW INPUT VOLTAGE CONSIDERATIONS For low input voltage between ...
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ADP2302/ADP2303 response and efficiency. Therefore, the inductor value is calculated using the following equation − ⎛ ⎜ = × IN OUT OUT L ⎜ × × ⎝ ...
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INPUT CAPACITOR The input capacitor must be able to support the maximum input operating voltage and the maximum RMS input current. The rms ripple current flowing through the input capacitor is, at maximum, I /2. Select an input capacitor capable ...
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ADP2302/ADP2303 DESIGN EXAMPLE This section provides the procedures to select the external compo- nents, based on the example specifications listed in Table 10. The schematic for this design example is shown in Figure 51. Because the output current is 3 ...
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V = 12V 10µF 25V R EN1 56kΩ EN2 10.2kΩ 1% Table 11. Recommended External Components for Typical Applications at 2 A/3 A Output Load Part Number V (V) V (V) IN OUT ADP2302 18 ...
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ADP2302/ADP2303 CIRCUIT BOARD LAYOUT RECOMMENDATIONS Good circuit board layout is essential to obtaining the best performance for ADP2302/ADP2303. Poor layout can affect the regulation and stability, as well as the electromagnetic interface (EMI) and electromagnetic compatibility (EMC) performance. A PCB ...
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TYPICAL APPLICATION CIRCUITS V = 12V 10µF 25V R PGOOD 100kΩ 12V 10µF 25V R PGOOD 100kΩ 12V 10µF 25V 10µF R PGOOD ...
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... GND Figure 59. ADP2303 Typical Application VIN BST C ADP2303ARDZ BST 0.1µ 3.3µH D SSB43L PGOOD FB GND Figure 60. ADP2303 Typical Application VIN BST ADP2303ARDZ C BST 0.1µ 3.3µH D SSB43L PGOOD FB GND Figure 61. ADP2303 Typical Application Rev Page 5.0V OUT OUT1 OUT2 22µ ...
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... V = 12V IN VIN BST C IN ADP2303ARDZ-5.0 10µF 25V EN R PGOOD 100kΩ PGOOD GND Figure 62. ADP2303 Typical Application VIN BST C IN ADP2302ARDZ 10µF 25V PGOOD 100kΩ PGOOD FB GND Figure 63. ADP2302 Typical Application, V Rev Page BST 0.1µ OUT 4.7µH OUT1 D 47µ ...
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... Model Output Voltage ADP2302ARDZ-R7 Adjustable ADP2302ARDZ-2.5-R7 2.5 V ADP2302ARDZ-3.3-R7 3.3 V ADP2302ARDZ-5.0-R7 5.0 V ADP2302-EVALZ ADP2303ARDZ-R7 Adjustable ADP2303ARDZ-2.5-R7 2.5 V ADP2303ARDZ-3.3-R7 3.3 V ADP2303ARDZ-5.0-R7 5.0 V ADP2303-EVALZ RoHS Compliant Part. 5.00 (0.197) 4.90 (0.193) 2.29 (0.090) 4.80 (0.189) 2.29 (0.090 6.20 (0.244) TOP VIEW 6.00 (0.236 5.80 (0.228) BOTTOM VIEW 1 ...
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NOTES Rev Page ADP2302/ADP2303 ...
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ADP2302/ADP2303 NOTES ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08833-0-7/10(0) Rev Page ...