LT1585A View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
LT1585A
ON Semiconductor
LT1585A Datasheet PDF : 9 Pages
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LT1585A
ABSOLUTE MAXIMUM RATINGS (Absolute Maximum Ratings indicate limits beyond which damage to the device may occur)
Rating
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Maximum Supply Voltage
Power Dissipation
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Case 221A (TO–220) (TJ = +25°C)
Symbol
Pin #
Value
Unit
Vin
3
12
V
PD
Internally Limited
W
Thermal Resistance, Junction–to–Ambient
RθJA
65
°C/W
Thermal Resistance, Junction–to–Case
Case 936 (D2PAK) (TJ = +25°C)
RθJC
PD
5.0
Internally Limited
°C/W
W
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Storage Temperature Range
Minimum ESD Rating (Human Body Model: C = 100pF, R = 1.5 kW)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Lead Temperature (Soldering, 10 sec.)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Maximum Junction Temperature
RθJA
RθJC
Tstg
TJ
70
5.0
–65 to 150
3.0
260
150
°C/W
°C/W
°C
kV
°C
°C
OPERATING RATINGS (Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee
specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics)
Rating
Operating Junction Temperature Range
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Supply Voltage
Symbol
TJ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ELECTRICAL CHARACTERISTICS (0 < TJ < +125°C, unless otherwise noted)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Characteristic
Symbol
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Reference Voltage (LT1585A)
Vref
Pin #
Value
Unit
0 to +125
°C
3
7.0
V
Pin # Min
Typ
Max Unit
1
V
(Vin–Vout) = 3V, Iout = 10mA, TJ = 25°C
1.238 1.250 1.262
1.5V ≤ (Vin–Vout) ≤ 5.75V, 10mA ≤ Iout ≤ 5A
Output Voltage (LT1585A–1.5)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Vin = 5V, TJ = 25°C, Iout = 0mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 3V ≤ Vin ≤ 7V, 0mA ≤ Iout ≤ 5A
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Line Regulation [Notes 1, 2]
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ LT1585A: 2.75V ≤ Vin ≤ 7V, Iout = 10mA
LT1585A–1.5: 3V ≤ Vin ≤ 7V, Iout = 0mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Load Regulation [Notes 1, 2]
Regline
Regload
1.225 1.250 1.275
2
V
1.485 1.5 1.515
1.470 1.5 1.530
2
%
–
0.005 0.2
–
0.005 0.2
2
%
LT1585A: (Vin–Vout) = 3V, TJ = 25°C, 10mA ≤ Iout ≤ 5A
–
0.05
0.3
LT1585A–1.5: Vin = 5V, TJ = 25°C, 0mA ≤ Iout ≤ 5A
–
0.05
0.3
LT1585A: (Vin–Vout) = 3V, 10mA ≤ Iout ≤ 5A
LT1585A–1.5: Vin = 5V, 0mA ≤ Iout ≤ 5A
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Dropout Voltage
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ LT1585A: DVREF = 1%, IOUT = 3A
Vin–Vout
–
0.05
0.5
–
0.05
0.5
V
–
1.150 1.300
LT1585A–1.5: DVOUT = 1%, IOUT = 3A
–
1.150 1.300
LT1585A: DVREF = 1%, IOUT = 5A
LT1585A–1.5: DVOUT = 1%, IOUT = 5A
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Current Limit [Note 3]
(Vin–Vout) = 5.5V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Adjust Pin Current (LT1585A)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Adjust Pin Current Change (LT1585A) [Note 3]
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 1.5V ≤ (Vin–Vout) ≤ 5.75V, 10mA ≤ Iout ≤ 5A
Minimum Load Current (LT1585A) 1.5V ≤ (Vin–Vout) ≤ 5.75V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Quiescent Current (LT1585A–1.5) Vin = 5V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Ripple Rejection
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ LT1585A: f = 120Hz, Cout = 25µF Tant., (Vin–Vout) = 3V, Iout = 5A
–
1.200 1.400
–
1.200 1.400
ILimit
2
A
5.0
6.0
–
IAdj
1
–
55
120
µA
1
µA
–
0.2
5.0
ILoad min
2
1
–
2.0
10
mA
–
7.0
13
mA
RR
2
dB
60
72
–
LT1585A–1.5: f = 120Hz, Cout = 25µF Tant., Vin = 4.5V, Iout = 5A
Thermal Regulation TJ = 25°C, 30ms Pulse
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Temperature Stability
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Long Term Stability TJ = 125°C, 1000 Hrs
RMS Output Noise (% of Vout) TJ = 25°C, 10Hz ≤ f ≤ 10kHz
T°Reg
T°Stab
60
72
–
–
0.004
–
%/W
–
0.5
–
%
–
0.03
1.0
%
–
0.003
–
%
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ NOTES 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ junction temperature by low duty cycle pulse testing.
2. Line and load regulations are guaranteed up to the maximum power dissipation 28.8W for the LT1585A in T–package. Power dissipation is
determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/output voltage range.
3. The LT1585A has constant current limit with changes in input–to–output voltage.
2
MOTOROLA ANALOG IC DEVICE DATA
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