Datasheet ADP5304 (Analog Devices) - 9
| Fabricante | Analog Devices |
| Descripción | Ultralow Power Step-Down Regulator with Input Voltage Monitor and Regulation |
| Páginas / Página | 17 / 9 — Data Sheet. ADP5304. VIN. VOUT. CH1 1.00V. CH2 5.00V. M 100µs. A CH1 … |
| Formato / tamaño de archivo | PDF / 562 Kb |
| Idioma del documento | Inglés |
Data Sheet. ADP5304. VIN. VOUT. CH1 1.00V. CH2 5.00V. M 100µs. A CH1 1.40V. CH3 2.00V. CH4 500mA Ω. T 40.40%. CH4 200mA Ω. VOUT (AC). IOUT
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Data Sheet ADP5304 VIN VIN 3 3 VOUT VOUT 1 1 IL IL 4 4 2 2 SW SW CH1 1.00V CH2 5.00V M 100µs A CH1 1.40V
-016
CH1 1.00V CH2 5.00V M 100µs A CH1 1.40V
-018
CH3 2.00V CH4 500mA Ω T 40.40%
493
CH3 2.00V CH4 200mA Ω T 40.40%
493 13 13 Figure 16. Soft Start, ILOAD = 50 mA Figure 19. Soft Start with Precharge Function
1 VOUT (AC) VOUT (AC) 1 VIN 4 IOUT IL 4 2 SW
28 29
CH1 50.0mV M 200µs C A H4 111mA
0
CH1 50.0mV CH2 5.00V M 2.00ms C A H3 4.72V
0 93- 93-
CH4 50.0mA Ω T 20.80%
134
CH3 2.00V CH4 500mA Ω T 30.00%
134 Figure 17. Load Transient, ILOAD from 0 mA to 50 mA Figure 20. Line Transient, ILOAD = 10 μA
VIN 1 VOUT 1 2 IL 4 3
30 1
CH1 1.00V M 10.0ms C A H3 4.80V
0
CH1 2.00V B CH2 1.00V B M 4.00ms A CH3 980mV
03 93-
W W CH3 1.00V CH4 200mA Ω T 40.20%
493- 134
CH3 1.00V B T 20.20% W
13 Figure 18. Input Voltage Ramp-Up and Ramp-Down Figure 21. VINOK Function at a 3.0 V VINOK Threshold Rev. 0 | Page 9 of 17 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY DETAILED FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BUCK REGULATOR OPERATIONAL MODE ADJUSTABLE AND FIXED OUTPUT VOLTAGES UNDERVOLTAGE LOCKOUT (UVLO) ENABLE/DISABLE VINOK FUNCTION CURRENT LIMIT SHORT-CIRCUIT PROTECTION SOFT START STARTUP WITH PRECHARGED OUTPUT 100% DUTY OPERATION ACTIVE DISCHARGE THERMAL SHUTDOWN APPLICATIONS INFORMATION EXTERNAL COMPONENT SELECTION SELECTING THE INDUCTOR OUTPUT CAPACITOR INPUT CAPACITOR LAYOUT RECOMMENDATIONS TYPICAL APPLICATION CIRCUITS FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE
-016
CH1 1.00V CH2 5.00V M 100µs A CH1 1.40V
-018
CH3 2.00V CH4 500mA Ω T 40.40%
493
CH3 2.00V CH4 200mA Ω T 40.40%
493 13 13 Figure 16. Soft Start, ILOAD = 50 mA Figure 19. Soft Start with Precharge Function
1 VOUT (AC) VOUT (AC) 1 VIN 4 IOUT IL 4 2 SW
28 29
CH1 50.0mV M 200µs C A H4 111mA
0
CH1 50.0mV CH2 5.00V M 2.00ms C A H3 4.72V
0 93- 93-
CH4 50.0mA Ω T 20.80%
134
CH3 2.00V CH4 500mA Ω T 30.00%
134 Figure 17. Load Transient, ILOAD from 0 mA to 50 mA Figure 20. Line Transient, ILOAD = 10 μA
VIN 1 VOUT 1 2 IL 4 3
30 1
CH1 1.00V M 10.0ms C A H3 4.80V
0
CH1 2.00V B CH2 1.00V B M 4.00ms A CH3 980mV
03 93-
W W CH3 1.00V CH4 200mA Ω T 40.20%
493- 134
CH3 1.00V B T 20.20% W
13 Figure 18. Input Voltage Ramp-Up and Ramp-Down Figure 21. VINOK Function at a 3.0 V VINOK Threshold Rev. 0 | Page 9 of 17 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY DETAILED FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BUCK REGULATOR OPERATIONAL MODE ADJUSTABLE AND FIXED OUTPUT VOLTAGES UNDERVOLTAGE LOCKOUT (UVLO) ENABLE/DISABLE VINOK FUNCTION CURRENT LIMIT SHORT-CIRCUIT PROTECTION SOFT START STARTUP WITH PRECHARGED OUTPUT 100% DUTY OPERATION ACTIVE DISCHARGE THERMAL SHUTDOWN APPLICATIONS INFORMATION EXTERNAL COMPONENT SELECTION SELECTING THE INDUCTOR OUTPUT CAPACITOR INPUT CAPACITOR LAYOUT RECOMMENDATIONS TYPICAL APPLICATION CIRCUITS FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE