Datasheet ADP2311 (Analog Devices) - 10

FabricanteAnalog Devices
DescripciónDual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring
Páginas / Página20 / 10 — ADP2311. Data Sheet. 350. 588. 340. 584. 330. D ( L. RISING. 320. 580. HO …
RevisiónB
Formato / tamaño de archivoPDF / 698 Kb
Idioma del documentoInglés

ADP2311. Data Sheet. 350. 588. 340. 584. 330. D ( L. RISING. 320. 580. HO S. kHz (. 310. HRE. 576. 300. T E. 572. FALLING. 290. RE F. 280. 568. CHDO. 270. T A. 564. 260. 250. 560

ADP2311 Data Sheet 350 588 340 584 330 D ( L RISING 320 580 HO S kHz ( 310 HRE 576 300 T E 572 FALLING 290 RE F 280 568 CHDO 270 T A 564 260 250 560

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ADP2311 Data Sheet 350 588 340 ) 584 mV 330 D ( L RISING 320 580 ) HO S kHz ( 310 Y HRE 576 T NC 300 T E UE S Q 572 FALLING 290 RE RE F G 280 568 CHDO 270 T A 564 W 260 250 560 –40 –20 0 20 40 60 80 100 120
017
–40 –20 0 20 40 60 80 100 120
020
TEMPERATURE (°C)
1036-
TEMPERATURE (°C)
1036- 1 1 Figure 17. Frequency vs. Temperature Figure 20. Watchdog Reset Threshold vs. Temperature
1.16 1.12 ) 1.14 s 1.10 m IOD ( 1.12 R E 1.08 IOD 1.10 T P R E 1.06 1.08 OU E T P 1.06 1.04 OU E 1.04 1.02 OG TIM D 1.02 T TIM H 1.00 E S TC 1.00 A E 0.98 W 0.98 D OG R 0.96 D 0.96 H LIZE A 0.94 TC 0.94 M A W 0.92 OR 0.92 N 0.90 0.90 –40 –20 0 20 40 60 80 100 120
018
–40 –20 0 20 40 60 80 100 120
021
TEMPERATURE (°C)
1036-
TEMPERATURE (°C)
1036- 1 1 Figure 18. Watchdog Reset Timeout Period vs. Temperature Figure 21. Normalized Watchdog Timeout Period vs. Temperature
3.4 2.4 3.3 2.3 A) µ 3.2 ( 2.2 NT A) 3.1 ( IT IM 2.1 3.0 L CURRE NT 2.9 2.0 URCE O 2.8 1.9 IN S 2.7 AK CURRE E R P P E 1.8 2.6 IM T 1.7 2.5 2.4 1.6 –40 –20 0 20 40 60 80 100 120
019
–40 –20 0 20 40 60 80 100 120
022
TEMPERATURE (°C)
1036- 1
TEMPERATURE (°C)
1036- 1 Figure 19. TIMER Pin Source Current vs. Temperature Figure 22. Peak Current Limit Threshold vs. Temperature Rev. B | Page 10 of 20 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme Precision Enable/Shutdown Internal Regulator (VREG) Bootstrap Circuitry Soft Start Peak Current-Limit and Short-Circuit Protection Power-On Reset (POR) TIMER Pin Configuration Power Fail Comparator Voltage Monitor Comparator (VM2) Watchdog Timer Power-Up and Power-Down Sequence Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Applications Information Input Capacitor Selection Output Voltage Setting Inductor Selection Output Capacitor Selection Application Circuit Outline Dimensions Ordering Guide