900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Motorola Electronic Components Datasheet

LT1585A Datasheet

5A LOW DROPOUT FAST RESPONSE POSITIVE ADJUSTABLE AND FIXED VOLTAGE REGULATOR

No Preview Available !

Order this document by LT1585A/D
5A Low Dropout Fast Response
Positive Adjustable and Fixed
Voltage Regulators
The LT1585A is a low dropout 3–terminal voltage regulator with 5A output
current capability.
Design has been optimized for low voltage applications where transient
response and minimum input voltage are critical. This voltage regulator
features a low dropout voltage and fast transient response. These
improvements make them ideal for low voltage microprocessor applications
requiring a regulated 2.5V to 3.6V output with an input supply below 7V.
Current limits is trimmed to ensure specified output current and controlled
short–circuit current. On–chip thermal limiting provides protection against
any combination of overload that would create excessive junction
temperatures. The LT1585A is available in the industry standard 3–pin
TO–220 and D2PAK power package.
Features
Fast Transient Response
Guaranteed Dropout Voltage at Multiple Currents
Load Regulation: 0.05% Typ
Trimmed Current Limit
On–Chip Thermal Limiting
Standard 3–Pin Power Package
Applications
Pentium® Processor Supplies
Power PCSupplies
Other 2.5V to 3.6V Microprocessor Supplies
Low Voltage Logic Supplies
Battery–Powered Circuitry
Post Regulator for Switching Supply
LT1585A
5A LOW DROPOUT FAST
RESPONSE POSITIVE
ADJUSTABLE AND FIXED
VOLTAGE REGULATOR
SILICON MONOLITHIC
INTEGRATED CIRCUIT
1
2
3
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Adjustable output:
Pin 1. Adjust
Pin 2. Vout
Pin 3. Vin
Fixed 1.5V output:
Pin 1. Gnd
Pin 2. Vout
Pin 3. Vin
Simplified Block Diagram
Vin
+
12
3
CM SUFFIX
PLASTIC PACKAGE
CASE 936
(D2PAK)
Thermal
Limit
Adjust
MOTOROLA ANALOG IC DEVICE DATA
ORDERING INFORMATION
Device
Tested
Operating
Temp.
Range
Output
Voltage
Type
Package
LT1585ACT
0 to 125°C ADJ. TO–220
LT1585ACM
0 to 125°C ADJ. D2PAK
Vout LT1585ACT–1.5 0 to 125°C FIXED TO–220
1.5V
LT1585ACM–1.5 0 to 125°C FIXED D2PAK
1.5V
© Motorola, Inc. 1999
Rev 0
1


Motorola Electronic Components Datasheet

LT1585A Datasheet

5A LOW DROPOUT FAST RESPONSE POSITIVE ADJUSTABLE AND FIXED VOLTAGE REGULATOR

No Preview Available !

LT1585A
ABSOLUTE MAXIMUM RATINGS (Absolute Maximum Ratings indicate limits beyond which damage to the device may occur)
Rating
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁMaximum Supply Voltage
Power Dissipation
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCase 221A (TO–220) (TJ = +25°C)
Symbol
Vin
PD
Pin #
3
Value
12
Internally Limited
Unit
V
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
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁStorage Temperature Range
Minimum ESD Rating (Human Body Model: C = 100pF, R = 1.5 kW)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLead Temperature (Soldering, 10 sec.)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁMaximum 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
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁSupply Voltage
Symbol
TJ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁELECTRICAL CHARACTERISTICS (0 < TJ < +125°C, unless otherwise noted)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCharacteristic
Symbol
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁReference Voltage (LT1585A)
Vref
Pin #
3
Value
0 to +125
7.0
Unit
°C
V
Pin # Min Typ Max Unit
1V
(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)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVin= 5V, TJ = 25°C, Iout= 0mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ3V Vin 7V, 0mA Iout 5A
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLine Regulation [Notes 1, 2]
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLT1585A: 2.75V Vin 7V, Iout = 10mA
LT1585A–1.5: 3V Vin 7V, Iout = 0mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLoad Regulation [Notes 1, 2]
Regline
Regload
1.225 1.250 1.275
2V
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
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDropout Voltage
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLT1585A: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
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Limit [Note 3]
(Vin–Vout) = 5.5V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁAdjust Pin Current (LT1585A)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁAdjust Pin Current Change (LT1585A) [Note 3]
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ1.5V (Vin–Vout) 5.75V, 10mA Iout 5A
Minimum Load Current (LT1585A) 1.5V (Vin–Vout) 5.75V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁQuiescent Current (LT1585A–1.5) Vin = 5V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁRipple Rejection
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLT1585A: f = 120Hz, Cout = 25µF Tant., (Vin–Vout) = 3V, Iout = 5A
– 1.200 1.400
– 1.200 1.400
ILimit
2A
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
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTemperature Stability
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLong 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 –
%
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNOTES 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁjunction 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


Part Number LT1585A
Description 5A LOW DROPOUT FAST RESPONSE POSITIVE ADJUSTABLE AND FIXED VOLTAGE REGULATOR
Maker Motorola
PDF Download

LT1585A Datasheet PDF






Similar Datasheet

1 LT1585 Low Dropout Fast Response Positive Regulators
Linear Technology
2 LT1585A 5A Low Dropout Fast Response Positive Regulators
Linear Technology
3 LT1585A 5A LOW DROPOUT FAST RESPONSE POSITIVE ADJUSTABLE AND FIXED VOLTAGE REGULATOR
Motorola
4 LT1585A-1.5 Fixed 1.5V/ 4.6A and 5A Low Dropout/ Fast Response GTL+ Regulators
Linear Technology
5 LT1585A-3.3 5A Low Dropout Fast Response Positive Regulators Adjustable and Fixed
Linear





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy