Datasheet ADP5304 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Ultralow Power Step-Down Regulator with Input Voltage Monitor and Regulation |
| 页数 / 页 | 17 / 7 — Data Sheet. ADP5304. TYPICAL PERFORMANCE CHARACTERISTICS. 100. ) 80. NCY. … |
| 文件格式/大小 | PDF / 562 Kb |
| 文件语言 | 英语 |
Data Sheet. ADP5304. TYPICAL PERFORMANCE CHARACTERISTICS. 100. ) 80. NCY. E 70. ICI. F 60. VIN = 2.5V. E 60. VIN = 3.0V. VIN = 3.6V. VIN = 4.2V
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Data Sheet ADP5304 TYPICAL PERFORMANCE CHARACTERISTICS
VIN =3.6 V, VOUT = 2.5 V, L1 = 2.2 μH, CIN = COUT = 10 μF, fSW = 2 MHz, TA = 25°C, unless otherwise noted.
100 100 90 90 80 ) ) 80 % % ( ( 70 NCY NCY E E 70 ICI ICI F 60 F F F E VIN = 2.5V E 60 VIN = 2.5V 50 VIN = 3.0V VIN = 3.0V VIN = 3.6V VIN = 3.6V VIN = 4.2V 50 VIN = 4.2V 40 VIN = 5.0V VIN = 5.0V VIN = 6.0V VIN = 6.0V 30 40
04 07
0.001 0.01 0.1 1 10
0 0 3-
0.001 0.01 0.1 1 10
3-
LOAD CURRENT (mA)
349
LOAD CURRENT (mA)
349 1 1 Figure 4. Hysteresis Efficiency vs. Load Current, VOUT = 1.2 V Figure 7. Hysteresis Efficiency vs. Load Current, VOUT = 1.5 V
100 100 90 90 ) 80 ) % % ( ( 80 NCY NCY E 70 E ICI ICI F F F F 70 E 60 VIN = 2.5V E VIN = 3.0V VIN = 3.0V VIN = 3.6V VIN = 3.6V 60 50 VIN = 4.2V VIN = 4.2V VIN = 5.0V VIN = 5.0V VIN = 6.0V VIN = 6.0V 40
05
50
08
0.001 0.01 0.1 1 10
0 0 3-
0.001 0.01 0.1 1 10
3-
LOAD CURRENT (mA)
349
LOAD CURRENT (mA)
349 1 1 Figure 5. Hysteresis Efficiency vs. Load Current, VOUT = 1.8 V Figure 8. Hysteresis Efficiency vs. Load Current, VOUT = 2.5 V
100 2.10 2.08 90 RISING ) 2.06 (V ) % D ( 80 L O H 2.04 NCY S E E ICI HR F T 2.02 F 70 E O L UV 2.00 VIN = 3.6V 60 FALLING VIN = 4.2V V 1.98 IN = 5.0V VIN = 6.0V 50
06
1.96 0.001 0.01 0.1 1 10
0 -022 3-
–40 25 85 125
93
LOAD CURRENT (mA)
349
TEMPERATURE (°C)
1 134 Figure 6. Hysteresis Efficiency vs. Load Current, VOUT = 3.3 V Figure 9. UVLO Threshold, Rising and Falling vs. Temperature Rev. 0 | Page 7 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
VIN =3.6 V, VOUT = 2.5 V, L1 = 2.2 μH, CIN = COUT = 10 μF, fSW = 2 MHz, TA = 25°C, unless otherwise noted.
100 100 90 90 80 ) ) 80 % % ( ( 70 NCY NCY E E 70 ICI ICI F 60 F F F E VIN = 2.5V E 60 VIN = 2.5V 50 VIN = 3.0V VIN = 3.0V VIN = 3.6V VIN = 3.6V VIN = 4.2V 50 VIN = 4.2V 40 VIN = 5.0V VIN = 5.0V VIN = 6.0V VIN = 6.0V 30 40
04 07
0.001 0.01 0.1 1 10
0 0 3-
0.001 0.01 0.1 1 10
3-
LOAD CURRENT (mA)
349
LOAD CURRENT (mA)
349 1 1 Figure 4. Hysteresis Efficiency vs. Load Current, VOUT = 1.2 V Figure 7. Hysteresis Efficiency vs. Load Current, VOUT = 1.5 V
100 100 90 90 ) 80 ) % % ( ( 80 NCY NCY E 70 E ICI ICI F F F F 70 E 60 VIN = 2.5V E VIN = 3.0V VIN = 3.0V VIN = 3.6V VIN = 3.6V 60 50 VIN = 4.2V VIN = 4.2V VIN = 5.0V VIN = 5.0V VIN = 6.0V VIN = 6.0V 40
05
50
08
0.001 0.01 0.1 1 10
0 0 3-
0.001 0.01 0.1 1 10
3-
LOAD CURRENT (mA)
349
LOAD CURRENT (mA)
349 1 1 Figure 5. Hysteresis Efficiency vs. Load Current, VOUT = 1.8 V Figure 8. Hysteresis Efficiency vs. Load Current, VOUT = 2.5 V
100 2.10 2.08 90 RISING ) 2.06 (V ) % D ( 80 L O H 2.04 NCY S E E ICI HR F T 2.02 F 70 E O L UV 2.00 VIN = 3.6V 60 FALLING VIN = 4.2V V 1.98 IN = 5.0V VIN = 6.0V 50
06
1.96 0.001 0.01 0.1 1 10
0 -022 3-
–40 25 85 125
93
LOAD CURRENT (mA)
349
TEMPERATURE (°C)
1 134 Figure 6. Hysteresis Efficiency vs. Load Current, VOUT = 3.3 V Figure 9. UVLO Threshold, Rising and Falling vs. Temperature Rev. 0 | Page 7 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