Datasheet ADP5134 (Analog Devices) - 10
| Hersteller | Analog Devices |
| Beschreibung | Dual 3 MHz, 1200 mA Buck Regulators and Two 300 mA LDO Regulators With Precision Enable and Power-Good Output |
| Seiten / Seite | 28 / 10 — ADP5134. Data Sheet. 100. 3.3. +25°C. –40°C. 3.2. +85°C. z) 3.1. Y (MH. … |
| Revision | A |
| Dateiformat / Größe | PDF / 883 Kb |
| Dokumentensprache | Englisch |
ADP5134. Data Sheet. 100. 3.3. +25°C. –40°C. 3.2. +85°C. z) 3.1. Y (MH. 3.0. CY (%). 2.9. EFFIC. 2.8. PE F. O 2.7. 2.6. 2.5. 0.001. 0.01. 0.1. 0.2. 0.4. 0.6. 0.8. 1.0. 1.2
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ADP5134 Data Sheet 100 3.3 +25°C –40°C 90 3.2 +25°C 80 +85°C –40°C z) 3.1 70 Y (MH 60 3.0 C CY (%) EN +85°C N 50 U IE 2.9 EQ 40 R EFFIC 2.8 PE F 30 O 2.7 SC 20 2.6 10 0 2.5 0.001 0.01 0.1 1
015
0 0.2 0.4 0.6 0.8 1.0 1.2
018
IVOUT1 (A) I
11710-
VOUT2 (A)
11710- Figure 15. BUCK1 Efficiency vs. Load Current, Across Temperature, Figure 18. BUCK2 Switching Frequency vs. Output Current, Across VVIN1 = 3.9 V, VVOUT1 = 3.3 V, Auto Mode Temperature, VVOUT2 = 1.8 V, PWM Mode
100 T 90 +85°C +25°C VVOUT1 80 1 70 –40°C 60 ISW1 CY (%) N 50 IE 2 40 EFFIC VSW1 30 20 10 4 0 0.001 0.01 0.1 1
016
CH1 50.0mV CH2 500mA Ω M 4.00µs A CH2 240mA
019
I CH4 2.00V VOUT2 (A)
11710-
T 28.40%
11710- Figure 16. BUCK2 Efficiency vs. Load Current, Across Temperature, Figure 19. Typical Waveforms, VVOUT1 = 3.3 V, IVOUT1 = 30 mA, Auto Mode VVOUT2 = 1.8 V, Auto Mode
100 +25°C T 90 VVOUT2 80 1 70 +85°C –40°C 60 I CY (%) SW2 N 50 IE 2 40 EFFIC 30 VSW2 20 10 4 0 0.001 0.01 0.1 1
017
CH1 50.0mV BW CH2 500mA Ω M 4.00µs A CH2 220mA CH4 2.00V
020
BW IVOUT1 (A)
11710-
T 28.40%
11710- Figure 17. BUCK1 Efficiency vs. Load Current, Across Temperature, Figure 20. Typical Waveforms, VVOUT2 = 1.8 V, IVOUT2 = 30 mA, Auto Mode VVOUT1 = 0.8 V, Auto Mode Rev. A | Page 10 of 28 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS GENERAL SPECIFICATIONS BUCK1 AND BUCK2 SPECIFICATIONS LDO1 AND LDO2 SPECIFICATIONS INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION POWER MANAGEMENT UNIT Power-Good Output Thermal Protection Undervoltage Lockout Precision Enable and Shutdown Control BUCK1 AND BUCK2 Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Oscillator and Phasing of Inductor Switching Short-Circuit Protection Buck Regulator Soft Start Current Limit 100% Duty Operation Active Pull-Down Resistors LDO1 AND LDO2 LDO Regulator Soft Start APPLICATIONS INFORMATION BUCK REGULATOR EXTERNAL COMPONENT SELECTION Feedback Resistors Inductor Output Capacitor Input Capacitor LDO REGULATOR EXTERNAL COMPONENT SELECTION Feedback Resistors Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties POWER DISSIPATION AND THERMAL CONSIDERATIONS BUCK REGULATOR POWER DISSIPATION LDO Regulator Power Dissipation JUNCTION TEMPERATURE PCB LAYOUT GUIDELINES TYPICAL APPLICATION SCHEMATICS BILL OF MATERIALS OUTLINE DIMENSIONS ORDERING GUIDE
015
0 0.2 0.4 0.6 0.8 1.0 1.2
018
IVOUT1 (A) I
11710-
VOUT2 (A)
11710- Figure 15. BUCK1 Efficiency vs. Load Current, Across Temperature, Figure 18. BUCK2 Switching Frequency vs. Output Current, Across VVIN1 = 3.9 V, VVOUT1 = 3.3 V, Auto Mode Temperature, VVOUT2 = 1.8 V, PWM Mode
100 T 90 +85°C +25°C VVOUT1 80 1 70 –40°C 60 ISW1 CY (%) N 50 IE 2 40 EFFIC VSW1 30 20 10 4 0 0.001 0.01 0.1 1
016
CH1 50.0mV CH2 500mA Ω M 4.00µs A CH2 240mA
019
I CH4 2.00V VOUT2 (A)
11710-
T 28.40%
11710- Figure 16. BUCK2 Efficiency vs. Load Current, Across Temperature, Figure 19. Typical Waveforms, VVOUT1 = 3.3 V, IVOUT1 = 30 mA, Auto Mode VVOUT2 = 1.8 V, Auto Mode
100 +25°C T 90 VVOUT2 80 1 70 +85°C –40°C 60 I CY (%) SW2 N 50 IE 2 40 EFFIC 30 VSW2 20 10 4 0 0.001 0.01 0.1 1
017
CH1 50.0mV BW CH2 500mA Ω M 4.00µs A CH2 220mA CH4 2.00V
020
BW IVOUT1 (A)
11710-
T 28.40%
11710- Figure 17. BUCK1 Efficiency vs. Load Current, Across Temperature, Figure 20. Typical Waveforms, VVOUT2 = 1.8 V, IVOUT2 = 30 mA, Auto Mode VVOUT1 = 0.8 V, Auto Mode Rev. A | Page 10 of 28 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS GENERAL SPECIFICATIONS BUCK1 AND BUCK2 SPECIFICATIONS LDO1 AND LDO2 SPECIFICATIONS INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION POWER MANAGEMENT UNIT Power-Good Output Thermal Protection Undervoltage Lockout Precision Enable and Shutdown Control BUCK1 AND BUCK2 Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Oscillator and Phasing of Inductor Switching Short-Circuit Protection Buck Regulator Soft Start Current Limit 100% Duty Operation Active Pull-Down Resistors LDO1 AND LDO2 LDO Regulator Soft Start APPLICATIONS INFORMATION BUCK REGULATOR EXTERNAL COMPONENT SELECTION Feedback Resistors Inductor Output Capacitor Input Capacitor LDO REGULATOR EXTERNAL COMPONENT SELECTION Feedback Resistors Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties POWER DISSIPATION AND THERMAL CONSIDERATIONS BUCK REGULATOR POWER DISSIPATION LDO Regulator Power Dissipation JUNCTION TEMPERATURE PCB LAYOUT GUIDELINES TYPICAL APPLICATION SCHEMATICS BILL OF MATERIALS OUTLINE DIMENSIONS ORDERING GUIDE