Datasheet LT1585-1.5, LT1585A-1.5 (Analog Devices) - 2

LT1585-1.5/LT1585A-1.5
W W W U ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN .. 7V Storage Temperature Range .. – 65°C to 150°C Operating Junction Temperature Range Lead Temperature (Soldering, 10 sec)... 300°C Control Section .. 0°C to 125°C
U U U
Power Transistor .. 0°C to 150°C
PRECONDITIONI G
100% Thermal Limit Functional Test
U W U PACKAGE/ORDER INFORMATION
ORDER PART FRONT VIEW ORDER PART FRONT VIEW *WITH PACKAGE SOLDERED TO 0.5 NUMBER NUMBER 3 V 3 V IN IN SQUARE INCH COPPER TAB TAB IS AREA OVER BACKSIDE 2 V IS 2 VOUT LT1585CM-1.5 OUTPUT OUT GROUND PLANE OR LT1585CT-1.5 OUTPUT 1 GND 1 GND INTERNAL POWER PLANE. LT1585ACM-1.5 LT1585ACT-1.5 θJA CAN VARY FROM M PACKAGE 20°C/W TO > 40°C/W T PACKAGE 3-LEAD PLASTIC DD WITH OTHER MOUNTING 3-LEAD PLASTIC TO-220 θ TECHNIQUES θ JA = 30°C/ W* JA = 50°C/ W Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the specified operating temperature range, otherwise specifications are at TA = 25
°
C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Voltage (Note 4) VIN = 5V, TJ = 25°C, IOUT = 0mA 1.485 (– 1%) 1.5 1.515 (+ 1%) V 3V ≤ VIN ≤ 7V, 0mA ≤ IOUT ≤ IFULL LOAD ● 1.470 (– 2%) 1.5 1.530 (+ 2%) V Line Regulation (Notes 2, 3) 3V ≤ VIN ≤ 7V, IOUT = 0mA 0.005 0.2 % Load Regulation VIN = 5V, TJ = 25°C, 0mA ≤ IOUT ≤ IFULL LOAD 0.05 0.3 % (Notes 2, 3, 4) ● 0.05 0.5 % Dropout Voltage (Note 4) ∆VOUT = 1%, IOUT = IFULL LOAD ● 1.200 1.400 V Current Limit LT1585-1.5, (VIN – VOUT) = 5.5V ● 4.60 5.25 A LT1585A-1.5, (VIN – VOUT) = 5.5V ● 5.00 6.00 A Quiescent Current VIN = 5V ● 7 13 mA Ripple Rejection (Note 4) f = 120Hz, COUT = 25µF Tant., VIN = 4.5V, IOUT = IFULL LOAD ● 60 72 dB Thermal Regulation TA = 25°C, 30ms Pulse 0.004 0.02 %/W Temperature Stability ● 0.5 % Long-Term Stability TA = 125°C, 1000 Hrs. 0.03 1.0 % RMS Output Noise TA = 25°C, 10Hz ≤ f ≤ 10kHz 0.003 % (% of VOUT) Thermal Resistance T Package: Control Circuitry/Power Transistor 0.7/3.0 °C/W Junction to Case M Package: Control Circuitry/Power Transistor 0.7/3.0 °C/W
Note 1:
Absolute Maximum Ratings are those values beyond which the life the LT1585A-1.5). Power dissipation is determined by input/output of the device may be impaired. differential and the output current. Guaranteed maximum output power
Note 2:
See thermal regulation specifications for changes in output voltage will not be available over the full input/output voltage range. due to heating effects. Load and line regulation are measured at a constant
Note 4:
IFULL LOAD is defined as the maximum value of output load current junction temperature by low duty cycle pulse testing. as a function of input-to-output voltage. IFULL LOAD is equal to 4.6A for the
Note 3:
Line and load regulation are guaranteed up to the maximum LT1585-1.5 and 5A for the LT1585A-1.5. The LT1585-1.5/LT1585A-1.5 power dissipation (25W for the LT1585-1.5 in T package and 27.5W for have constant current limit with changes in input-to-output voltage. 2