Datasheet ADM7151 (Analog Devices) - 9

Data Sheet ADM7151 10 12 9 10 8 A) mA) 7 µ ( ( 8 NT 6 NT 5 6 4 UND CURRE UND CURRE 4 RO 3 LOAD = 1mA RO IGND = 5mA G LOAD = 10mA G IGND = 10mA 2 LOAD = 100mA I 2 GND = 100mA LOAD = 200mA IGND = 200mA 1 LOAD = 400mA IGND = 400mA LOAD = 800mA IGND = 800mA 0 0 6 8 10 12 14 16
017
4.6 4.8 5.0 5.2 5.4 5.6 5.8 6.0
020
VIN (V) V
11480-
IN (V)
11480- Figure 17. Ground Current vs. Input Voltage (VIN), ADM7151-04, VOUT = 5 V Figure 20. Ground Current vs. Input Voltage (VIN) in Dropout, ADM7151-04, VOUT = 5 V
700 0 LOAD = 800mA –10 LOAD = 400mA 600 LOAD = 200mA –20 LOAD = 100mA ) LOAD = 10mA V –30 m 500 ( –40 GE 400 B) –50 d OLTA –60 RR ( T V 300 S P –70 OU –80 OP R 200 D –90 –100 100 –110 0 –120 1 10 100 1000
018
1 10 100 1k 10k 100k 1M 10M
021
ILOAD (mA) FREQUENCY (Hz)
11480- 11480- Figure 18. Dropout Voltage vs. Load Current (ILOAD), ADM7151-04, VOUT = 5 V Figure 21. Power Supply Rejection Ratio (PSRR) vs. Frequency, ADM7151-02, VOUT = 4 V
5.2 0 LOAD = 800mA –10 LOAD = 400mA 5.0 LOAD = 200mA –20 LOAD = 100mA –30 LOAD = 10mA 4.8 –40 B) –50 (V) d 4.6 UT –60 O RR ( V S P –70 4.4 –80 VDROPOUT = 5mA VDROPOUT = 10mA –90 V 4.2 DROPOUT = 100mA V –100 DROPOUT = 200mA VDROPOUT = 400mA –110 VDROPOUT = 800mA 4.0 –120 4.6 4.8 5.0 5.2 5.4 5.6 5.8 6.0
019
1 10 100 1k 10k 100k 1M 10M
022
VIN (V) FREQUENCY (Hz)
11480- 11480- Figure 19. Output Voltage (VOUT) vs. Input Voltage (VIN) in Dropout, Figure 22. Power Supply Rejection Ratio (PSRR) vs. Frequency, ADM7151-04, ADM7151-04, VOUT = 5 V VOUT = 5 V Rev. B | Page 9 of 24 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION MODEL SELECTION CAPACITOR SELECTION Output Capacitor Input and VREG Capacitor REF Capacitor BYP Capacitor Capacitor Properties ENABLE (EN) AND UNDERVOLTAGE LOCKOUT (UVLO) START-UP TIME REF, BYP, AND VREG PINS CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS Thermal Characterization Parameter (ΨJB) PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE