Datasheet ADP5074 (Analog Devices) - 8

ADP5074 Data Sheet 90 2.54 TA = +125°C T 80 A = +25°C TA = –40°C z) 2.49 70 H (M Y 60 2.44 %) NC ( E U 50 Q NCY E E R 2.39 F ICI 40 F R F O E T 30 A 2.34 ILL 20 C S T O 2.29 A = +125°C 10 TA = +25°C TA = –40°C 0 2.24
010 4
0.001 0.01 0.1 1 10 0 2 4 6 8 10 12 14 16
-01 8 12818-
IOUT (A) VIN (V)
1281 Figure 9. Efficiency vs. Current Load (IOUT) for Various Temperatures, VIN = 5 V, Figure 12. Oscillator Frequency vs. Input Voltage (VIN) for Various VOUT = −15 V, fSW = 1.2 MHz Temperatures, SYNC/FREQ Pin = High
0.50 1.27 TA = +125°C TA = +25°C T 1.25 A = –40°C ) 0.30 z) H ) (% (M Y 1.23 FB (V NC F 0.10 E U RE 1.21 Q E N V R F N I –0.10 R 1.19 IO O T AT A ARI ILL 1.17 V –0.30 C S O 1.15 –0.50
030
1.13 0 2 4 6 8 10 12
5
0 2 4 6 8 10 12 14 16
-01
V
12818- 8
IN (V) VIN (V)
1281 Figure 10. Line Regulation, VOUT = −5 V, fSW = 1.2 MHz, 15 mA Load, TA = 25°C Figure 13. Oscillator Frequency vs. Input Voltage (VIN) for Various (Skip Mode Not Shown) Temperatures, SYNC/FREQ Pin = Low
0.50 18 1.2 MHz ) 2.4 MHz A 16 (µ ) 0.30 T N 14 ) (% E FB 12 (V CURR F 0.10 T RE N 10 E N V C N I 8 –0.10 IES IO U Q AT N 6 W ARI V O –0.30 D 4 T T HU A = +80°C S 2 TA = +25°C TA = –40°C –0.50 0
031 6
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 0 2 4 6 8 10 12 14 16
-01 8
LOAD (A)
12818-
VIN (V)
1281 Figure 11. Load Regulation, VIN = 12 V, VOUT = −5 V, fSW = 1.2 MHz, TA = 25°C Figure 14. Shutdown Quiescent Current (ISHDN) vs. Input Voltage (VIN) for (Skip Mode Not Shown) Various Temperatures, EN Pin Below Shutdown Threshold Rev. A | Page 8 of 17 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PWM MODE SKIP MODE UNDERVOLTAGE LOCKOUT (UVLO) OSCILLATOR AND SYNCHRONIZATION INTERNAL REGULATORS PRECISION ENABLING SOFT START SLEW RATE CONTROL CURRENT-LIMIT PROTECTION OVERVOLTAGE PROTECTION POWER GOOD APPLICATIONS INFORMATION ADIsimPOWER DESIGN TOOL COMPONENT SELECTION Feedback Resistors Output Capacitor Input Capacitor VREG Capacitor VREF Capacitor Soft Start Resistor Diodes Inductor Selection Loop Compensation COMMON APPLICATIONS LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE