Datasheet ADP2108 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | Compact, 600 mA, 3 MHz, Step-Down DC-to-DC Converter |
| Seiten / Seite | 20 / 6 — ADP2108. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 1400. +85°C. … |
| Revision | H |
| Dateiformat / Größe | PDF / 1.1 Mb |
| Dokumentensprache | Englisch |
ADP2108. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 1400. +85°C. 1300. 1200. µ (. mA). +25°C. ( 1100. IT IM. L 1000. CURRE. –40°C. 900. UI Q. 800
Modelllinie für dieses Datenblatt
Textversion des Dokuments
ADP2108 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.6 V, TA = 25°C, VEN = VIN, unless otherwise noted.
24 1400 +85°C 1300 22 A) 1200 µ ( 20 NT mA) +25°C ( 1100 IT IM 18 L 1000 CURRE NT NT –40°C CE 900 S 16 E CURRE UI Q 800 14 700 12 600 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
014 017
INPUT VOLTAGE (V) INPUT VOLTAGE (V)
07375- 07375- Figure 4. Quiescent Supply Current vs. Input Voltage Figure 7. PMOS Current Limit vs. Input Voltage
3500 0.15 3400 0.14 3300 0.13 0.12 3200 ) A) ( 0.11 kHz –40°C 3100 NT ( 0.10 NCY 3000 UE +25°C CURRE 0.09 Q 2900 UT P RE +85°C 0.08 F –40°C 2800 UT O 0.07 PWM TO PSM PSM TO PWM 2700 0.06 +85°C 2600 0.05 2500 0.04 2.3 2.8 3.3 3.8 4.3 4.8 5.3 2.5 3.0 3.5 4.0 4.5 5.0 5.5
015 018
INPUT VOLTAGE (V) INPUT VOLTAGE (V)
07375- 07375- Figure 5. Switching Frequency vs. Input Voltage Figure 8. Mode Transition Across Temperature
1.840 0.15 IOUT = 10mA 1.835 0.14 1.830 0.13 ) V A) ( 1.825 IOUT = 150mA ( 0.12 GE NT 1.820 0.11 OLTA 1.815 CURRE T V IOUT = 500mA 0.10 U UT P TP 1.810 UT 0.09 OU O PSM TO PWM 1.805 0.08 PWM TO PSM 1.800 0.07 1.795 0.06 –45 –25 –5 15 35 55 75 2.5 3.0 3.5 4.0 4.5 5.0 5.5
016 019
TEMPERATURE (°C) INPUT VOLTAGE (V)
07375- 07375- Figure 6. Output Voltage vs. Temperature Figure 9. Mode Transition Rev. H | Page 6 of 20 Document Outline Features Applications General Description Typical Applications Circuit Table of Contents Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme PWM Mode Power Save Mode Power Save Mode Current Threshold Enable/Shutdown Short-Circuit Protection Undervoltage Lockout Thermal Protection Soft Start Current Limit 100% Duty Operation Applications Information ADIsimPower Design Tool External Component Selection Inductor Output Capacitor Input Capacitor Thermal Considerations PCB Layout Guidelines Evaluation Board Outline Dimensions Ordering Guide
VIN = 3.6 V, TA = 25°C, VEN = VIN, unless otherwise noted.
24 1400 +85°C 1300 22 A) 1200 µ ( 20 NT mA) +25°C ( 1100 IT IM 18 L 1000 CURRE NT NT –40°C CE 900 S 16 E CURRE UI Q 800 14 700 12 600 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
014 017
INPUT VOLTAGE (V) INPUT VOLTAGE (V)
07375- 07375- Figure 4. Quiescent Supply Current vs. Input Voltage Figure 7. PMOS Current Limit vs. Input Voltage
3500 0.15 3400 0.14 3300 0.13 0.12 3200 ) A) ( 0.11 kHz –40°C 3100 NT ( 0.10 NCY 3000 UE +25°C CURRE 0.09 Q 2900 UT P RE +85°C 0.08 F –40°C 2800 UT O 0.07 PWM TO PSM PSM TO PWM 2700 0.06 +85°C 2600 0.05 2500 0.04 2.3 2.8 3.3 3.8 4.3 4.8 5.3 2.5 3.0 3.5 4.0 4.5 5.0 5.5
015 018
INPUT VOLTAGE (V) INPUT VOLTAGE (V)
07375- 07375- Figure 5. Switching Frequency vs. Input Voltage Figure 8. Mode Transition Across Temperature
1.840 0.15 IOUT = 10mA 1.835 0.14 1.830 0.13 ) V A) ( 1.825 IOUT = 150mA ( 0.12 GE NT 1.820 0.11 OLTA 1.815 CURRE T V IOUT = 500mA 0.10 U UT P TP 1.810 UT 0.09 OU O PSM TO PWM 1.805 0.08 PWM TO PSM 1.800 0.07 1.795 0.06 –45 –25 –5 15 35 55 75 2.5 3.0 3.5 4.0 4.5 5.0 5.5
016 019
TEMPERATURE (°C) INPUT VOLTAGE (V)
07375- 07375- Figure 6. Output Voltage vs. Temperature Figure 9. Mode Transition Rev. H | Page 6 of 20 Document Outline Features Applications General Description Typical Applications Circuit Table of Contents Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme PWM Mode Power Save Mode Power Save Mode Current Threshold Enable/Shutdown Short-Circuit Protection Undervoltage Lockout Thermal Protection Soft Start Current Limit 100% Duty Operation Applications Information ADIsimPower Design Tool External Component Selection Inductor Output Capacitor Input Capacitor Thermal Considerations PCB Layout Guidelines Evaluation Board Outline Dimensions Ordering Guide