Datasheet ADM7155 (Analog Devices) - 3

link to page 4 link to page 4 link to page 4 link to page 4
Data Sheet ADM7155 SPECIFICATIONS
VIN = VOUT_MAX + 0.5 V, EN = VIN; ILOAD = 10 mA; CIN = COUT = CREG = 10 μF; CREF = CBYP = 1 μF; TA = 25°C for typical specifications; TJ = −40°C to +125°C for minimum/maximum specifications, unless otherwise noted.
Table 2. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT VOLTAGE RANGE VIN 2.3 5.5 V LOAD CURRENT ILOAD 600 mA OPERATING SUPPLY CURRENT IGND ILOAD = 0 μA 4.0 7.0 mA ILOAD = 600 mA 6.5 10 mA SHUTDOWN CURRENT IIN_SD EN = GND 0.2 2 μA NOISE Output Noise OUTNOISE 10 Hz to 100 kHz, VOUT = 1.2 V to 3.4 V 1.6 μV rms 100 Hz to 100 kHz, VOUT = 1.2 V to 3.4 V 0.9 μV rms Noise Spectral Density OUTNSD 10 kHz to 1 MHz, VOUT = 1.2 V to 3.4 V 1.5 nV/√Hz POWER SUPPLY REJECTION RATIO PSRR IOUT = 400 mA ADM7155-01 1 kHz to 100 kHz, VIN = 2.3 V 92 dB 1 MHz, VIN = 2.3 V 65 dB ADM7155-02 1 kHz to 100 kHz, VIN = 2.9 V 94 dB 1 MHz, VIN = 2.9 V 61 dB ADM7155-03 1 kHz to 100 kHz, VIN = 3.4 V 94 dB 1 MHz, VIN = 3.4 V 57 dB ADM7155-04 1 kHz to 100 kHz, VIN = 3.9 V 94 dB 1 MHz, VIN = 3.9 V 57 dB OUTPUT VOLTAGE ACCURACY VOUT = VREF Initial Accuracy VOUT ILOAD = 10 mA, TJ = +25°C −0.5 +0.5 % 1 mA < ILOAD < 600 mA, TJ = −40°C to +85°C −2.0 +1.5 % 1 mA < ILOAD < 600 mA −2.0 +2.0 % REGULATION Line ∆VOUT/∆VIN VIN = VOUT_MAX + 0.5 V to 5.5 V −0.02 +0.02 %/V Load1 ∆VOUT/∆IOUT IOUT = 1 mA to 600 mA 0.3 1.6 %/A CURRENT-LIMIT THRESHOLD2 ILIMIT VREF 22 mA VOUT 700 960 1200 mA DROPOUT VOLTAGE3 VDROPOUT IOUT = 400 mA, VOUT = 3.3 V 80 130 mV IOUT = 600 mA, VOUT = 3.3 V 120 210 mV PULL-DOWN RESISTANCE VOUT VOUT_PULL EN = 0 V, VOUT = 1 V, VIN = 5.5 V 550 Ω REG VREG_PULL EN = 0 V, VREG = 1 V, VIN = 5.5 V 33 kΩ REF VREF_PULL EN = 0 V, VREF = 1 V, VIN = 5.5 V 620 Ω BYP VBYP_PULL EN = 0 V, VBYP = 1 V, VIN = 5.5 V 400 Ω START-UP TIME4 VOUT tSTARTUP VOUT = 3.3 V 1.2 ms VREG tREG_STARTUP VOUT = 3.3 V 0.55 ms VREF tREF_STARTUP VOUT = 3.3 V 0.44 ms THERMAL SHUTDOWN Threshold TSSD TJ rising 150 °C Hysteresis TSSD_HYS 15 °C UNDERVOLTAGE THRESHOLDS Input Voltage Rising UVLORISE 2.29 V Falling UVLOFALL 1.95 V Hysteresis UVLOHYS 200 mV Rev. C | Page 3 of 24 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION ADIsimPOWER DESIGN TOOL CAPACITOR SELECTION Output Capacitor Input and VREG Capacitor REF Capacitor BYP Capacitor Capacitor Properties UNDERVOLTAGE LOCKOUT (UVLO) PROGRAMMABLE PRECISION ENABLE START-UP TIME REF, BYP, AND VREG PINS CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS Thermal Characterization Parameter (ΨJB) PSRR PERFORMANCE PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE