TelCom Semiconductor Inc TCL1585-ADJCAB, TCL1585-3.3CEB, TCL1585-3.3CAB, TCL1585-1.5CEB, TCL1584-ADJCEB Datasheet
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7A / 5A / 4.6A / 3A, FAST RESPONSE,
PRELIMINARY INFORMATION
LOW DROPOUT POSITIVE LINEAR
VOLTAGE REGULATORS
7A / 5A / 4.6A / 3A, FAST RESPONSE, LOW DROPOUT
POSITIVE LINEAR VOLTAGE REGULATORS
TCL1584
TCL1584
TCL1585
TCL1585
TCL1587
TCL1587
FEATURES
■ Fixed and Adjustable Voltages ........1.5V and 3.3V
■ Optimized for Low Voltage Applications
■ Output Current Capability..........7A / 5A / 4.6A / 3A
■ Guaranteed Dropout Voltage up to Full Rated
Output
■ Integrated Thermal and Short-Circuit Protection
■ Compact 3-Pin Surface-Mount and Thru-Hole
Standard Power Packages
■ V
Accuracy................................................. 2.0%
REF
■ Load Regulation .............................................0.05%
APPLICATIONS
■ Pentium
■ PowerPC
■ PentiumPro
TM*
, PentiumPro
TM*
CPU Power Supplies
TM*
System GTL+ Bus Terminators
■ Low-Voltage, High Speed Microprocessors
■ Post-Regulator for Switch-Mode Power Supplies
TM*
CPU Power Supplies
GENERAL DESCRIPTION
PIN CONFIGURATIONS
TO-220-3 DDPAK-3
3
3
TCL1584CAB
TCL1585CAB
TCL1587CAB
NOTE: For TO-220 ΘJA = 53°C/W. For DDPAK-3 ΘJA = 76°C/W. ΘJA for both packages
are specified without external heat sinks. See Applications Section for details.
12
OUT
V
ADJ/GND
IN
V
12
OUT
V
ADJ/GND
IN
V
TCL1584CEB
TCL1585CEB
TCL1587CEB
The TCL1584/1585/1587 are low dropout, positive linear voltage regulators. They have a maximum current
output specification of 7A, 5A, 4.6A and 3A respectively.
All three devices are supplied in fixed and adjustable output
voltage versions.
Good transient load response combined with low dropout voltage makes these devices ideal for the latest low
voltage microprocessor power supplies. Additionally, shortcircuit, thermal and safe operating area (SOA) protection is
provided internally to ensure reliable operation.
The TCL1587, TCL1585 and TCL1584 are available in
a 3-pin TO-220 tabbed power package and in a 3-pin surface
mount DDPAK-3 package.
ORDERING INFORMATION
Part Number Package Temp. Range
TCL1584-3.3CAB TO-220-3 0°C to + 70°C
TCL1584-3.3CEB DDPAK-3 0°C to + 70°C
TCL1584-ADJCAB TO-220-3 0°C to + 70°C
TCL1584-ADJCEB DDPAK-3 0°C to + 70°C
TCL1585-1.5CAB TO-220-3 0°C to + 70°C
TCL1585-1.5CEB DDPAK-3 0°C to + 70°C
TCL1585-3.3CAB TO-220-3 0°C to + 70°C
TCL1585-3.3CEB DDPAK-3 0°C to + 70°C
TCL1585-ADJCAB TO-220-3 0°C to + 70°C
TCL1585-ADJCEB DDPAK-3 0°C to + 70°C
TCL1587-1.5CAB TO-220-3 0°C to + 70°C
TCL1587-1.5CEB DDPAK-3 0°C to + 70°C
TCL1587-3.3CAB TO-220-3 0°C to + 70°C
TCL1587-3.3CEB DDPAK-3 0°C to + 70°C
TCL1587-ADJCAB TO-220-3 0°C to + 70°C
TCL1587-ADJCEB DDPAK-3 0°C to + 70°C
TYPICAL OPERATING CIRCUIT
Fixed Output Voltage Version
GND
V
OUT
section.
= 5V
V
IN
C1 = 10µF
*NOTE: C2 is required to ensure output stability. Minimum 22µF (TCL1584) or 10µF (TCL1585/7),
*All Trademarks and Trade Names are the property of their respective owners.
TCL1584/1585/1587-04 6/6/97
TCL1584/1585/1587-04 6/6/97 TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.
low ESR tantalum type. Larger values may be required for high output current transient
regulation. See
V
IN
TCL158x-3.3
Applications
V
OUT
C2*
(Tantalum)
= 3.3V
V
IN
1
= 5V
C1 = 10µF
Adjustable Output Voltage Version
V
IN
TCL158x
ADJ
V
OUT
R1
R2
V
OUT
(1+ R1/R2)V
C2*
(Tantalum)
=
REF
PRELIMINARY INFORMATION
TCL1584
TCL1585
TCL1587
7A / 5A / 4.6A / 3A, FAST RESPONSE,
LOW DROPOUT POSITIVE LINEAR
VOLTAGE REGULATORS
ABSOLUTE MAXIMUM RATINGS*
Input Voltage (VIN to GND) ...........................................7V
Operating Junction Temperature Range
*This is a stress rating only, and functional operation of the device at these
or any other conditions beyond those indicated in the operation section of
the specifications is not implied. Exposure to absolute maximum ratings
conditions for extended periods of time may affect device reliability.
Control Circuitry...................................0°C to +125°C
Output Transistor.................................0°C to +150°C
Power Dissipation ..................... See
Applications
Section
Storage Temperature (unbiased) .......... – 65°C to +150°C
Lead Temperature (Soldering, 10 sec) .................+300°C
ELECTRICAL CHARACTERISTICS: T
= Operating Temperature Range, 4.75V ≤ VIN ≤ 5.25V, unless
A
otherwise specified.
Parameter
Reference TCL1584 1.5V ≤ (V
Voltage TCL1585 1.5V ≤ (V
Output TCL1587-1.5 4.75V ≤ V
Voltage TCL1584-3.3 4.75V ≤ V
Line TCL1584/5/7 2.75V ≤ V
Regulation TCL1587-1.5 4.75V ≤ V
(Notes 1, 2)
Load TCL1584/5/7 (V
Regulation TCL1587-1.5 V
(Notes 1, TCL1584/5/7-3.3 V
2, 3) Over Operating Temperature Range — 0.05 0.5
Dropout TCL1585/7 ∆V
Voltage TCL1587-1.5 ∆V
Current TCL1584 (V
Limit TCL1584-3.3 (V
(Note 3)
Temperature
Coefficient
ADJ Pin TCL1584/5/7 — 55 120 µA
Current
TCL1584/1585/1587-04 6/6/97
Device Test Conditions Min Typ Max Unit
– V
1.5V ≤ (V
TCL1587 1.5V ≤ (V
TCL1585-3.3 4.75V ≤ V
4.75V ≤ V
TCL1587-3.3 4.75V ≤ V
TCL1584/5/7-3.3 4.75V ≤ V
– V
IN
= 5V, TJ = 25°C, 0mA ≤ I
IN
= 5V, TJ = 25°C, 0mA ≤ I
IN
= 1%, I
REF
= 1%, I
∆V
∆V
OUT
OUT
REF
REF
OUT
OUT
REF
OUT
REF
OUT
IN
IN
IN
IN
IN
IN
IN
= 1%, I
= 1%, I
= 1%, I
= 1%, I
= 1%, I
= 1%, I
= 1%, I
= 1%, I
= 1%, I
– V
– V
– V
– V
– V
– V
– V
TCL1585/7-3.3 ∆V
TCL1585 ∆V
TCL1585-3.3 ∆V
TCL1584 ∆V
TCL1584-3.3 ∆V
TCL1584 ∆V
TCL1584-3.3 ∆V
TCL1585 (V
TCL1585-3.3 (V
TCL1587 (V
TCL1587-1.5 (V
TCL1587-3.3 (V
TBD TBD
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
) ≤ 3V, 10mA ≤ I
OUT
– V
) ≤ 5.75V, 10mA ≤ I
OUT
– V
) ≤ 5.75V, 10mA ≤ I
OUT
– V
) ≤ 5.75V, 10mA ≤ I
OUT
≤ 7V, 0mA ≤ I
≤ 6.3V, 0mA ≤ I
≤ 7V, 0mA ≤ I
≤ 7V, 0mA ≤ I
≤ 7V, 0mA ≤ I
≤ 7V, I
OUT
≤ 7V, I
OUT
≤ 7V, I
OUT
≤ 3A
OUT
OUT
≤ 4.6A, TJ ≥ 25°C
OUT
≤ 4A, TJ < 25°C
OUT
≤ 3A
OUT
= 10mA — 0.005 0.2 %
= 0mA
= 0mA
) = 3V, TJ = 25°C, 10mA ≤ I
OUT
OUT
= 3A — 1.15 1.30 V
OUT
= 3A
OUT
= 3A
OUT
= 4.6A, TJ ≥ 25°C — 1.20 1.40 V
OUT
= 4A, TJ < 25°C
OUT
= 4.6A, TJ ≥ 25°C
OUT
= 4A, TJ < 25°C
OUT
= 6A
OUT
= 6A:TJ ≥ 25°C — 1.20 1.30 V
OUT
TJ < 25°C — 1.30 1.35
= 7A — 1.25 1.40 V
OUT
= 7A
OUT
) = 3V 7.10 8.25 — A |
OUT
) = 3V
OUT
) = 5.5V: TJ < 25°C 4.10 5.25 — A
OUT
) = 5.5V: TJ ≥ 25°C 4.60 5.25
OUT
) = 5.5V 3.10 3.75 — A
OUT
) = 5.5V
OUT
) = 5.5V
OUT
≤ 7A 1.225 1.25 1.275 V
OUT
≤ 4.6A, TJ ≥ 25°C
OUT
≤ 4A, TJ < 25°C
OUT
≤ 3A
OUT
≤ 7A 3.235 3.30 3.365 V
≤ I
FULL LOAD
≤ I
FULL LOAD
2
OUT
≤ I
FULL LOAD
— 0.05 0.3 %
7A / 5A / 4.6A / 3A, FAST RESPONSE,
LOW DROPOUT POSITIVE LINEAR
VOLTAGE REGULATORS
PRELIMINARY INFORMATION
TCL1584
TCL1585
TCL1587
ELECTRICAL CHARACTERISTICS: (Cont.) T
= Operating Temperature Range, 4.75V ≤ VIN ≤ 5.25V,
A
unless otherwise specified.
Parameter
ADJ Pin TCL1584 1.5V ≤ (V
Current TCL1585/7 1.5V ≤ (V
Change
(Note 3)
Minimum TCL1584/5/7 1.5V ≤ (V
Load
Current
Quiescent TCL1587-1.5 VIN = 5V — 8 13 mA
Current TCL1584/5/7-3.3 VIN = 5V
Ripple TCL1584 f = 120Hz, C
Rejection TCL1584-3.3 f = 120Hz, C
Thermal TCL1584/5/7 TA = 25°C, 30msec Pulse — 0.004 0.02 %/W
Regulation TCL1587-1.5 T
Temperature
Stability
Long Term TA = 125°C, 1000Hrs. — 0.03 1.0 %
Stability
RMS TA = 25°C, 10Hz ≤ f ≤ 10kHz — 0.003 — %
Output
Noise (%
of V
OUT
Thermal TCL1584 “A” pkg. (TO-220): Control Circuitry/Power Transistor — — 0.65/2.7 °C/W
Resistance TCL1585 “A” pkg. (TO-220): Control Circuitry/Power Transistor — — 0.7/3.0 °C/W
(Junction to
Case, ΘJA)
NOTES: 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant
Device Test Conditions Min Typ Max Unit
– V
IN
IN
IN –VOUT
TCL1585
f = 120Hz, C
f = 120Hz, C
TCL1585-3.3 f = 120Hz, C
f = 120Hz, C
TCL1587 f = 120Hz, C
TCL1587-1.5 f = 120Hz, C
TCL1587-3.3 f = 120Hz, C
= 25°C, 30msec Pulse
A
) ≤ 3V, 10mA ≤ I
OUT
– V
) ≤ 5.75V, 10mA ≤ I
OUT
) ≤ 5.75V — 2 10 mA
= 25µF Tant. (V
OUT
= 25µF Tant., V
OUT
= 25µF Tant., (V
OUT
= 25µF Tant., (V
OUT
= 25µF Tant.,V
OUT
= 25µF Tant.,V
OUT
= 25µF Tant., (V
OUT
= 25µF Tant., V
OUT
= 25µF Tant., V
OUT
IN
IN
TCL1584/5/7-3.3 TA = 25°C, 30msec Pulse
VIN = 5V, I
= 0.5A — 0.5 — %
OUT
)
TCL1585 “E” pkg. (TO-263): Control Circuitry/Power Transistor — — 0.7/3.0 °C/W
TCL1587 “A” pkg. (TO-220): Control Circuitry/Power Transistor — — 0.7/3.0 °C/W
TCL1587 “E” pkg. (TO-263): Control Circuitry/Power Transistor — — 0.7/3.0 °C/W
junction temperature by low duty cycle pulse testing.
2. Load and line regulation are guaranteed up to the maximum power dissipation (25W for the TCL1584 in “A” pkg., 26.5W for the TCL1585 in
“A” pkg., 18W for the TCL1587 in “A” pkg.). Power dissipation is determined by input/output voltage differential and output current. Guaranteed
maximum output current/power will not be available over full input/output voltage range.
3. I
FULL LOAD
TCL1584, decreasing to approximately 3A as V
the TCL1587, I
is defined as the maximum value of output load current as a function of input-to-output voltage. I
FULL LOAD
is 3A. The TCL1585 and 1587 have constant current limit with respect to V
– V
IN
increases from 3V to 7V. For all other fixed voltage TCL1585’s, I
OUT
OUT
– V
IN
= 5.8V, I
IN
– V
OUT
– V
OUT
= 6.3V, I
IN
= 6.3V, I
IN
– V
IN
= 5.0V, I
IN
= 6.3V, I
IN
≤ I
FULL LOAD
≤ I
OUT
) = 2.5V, I
OUT
OUT =
) = 3V, I
) = 3V, I
OUT
OUT
) = 3V, I
OUT
OUT
OUT
FULL LOAD
= 7A 60 72 — dB
OUT
7A
= 4.6A, TJ ≥ 25°C
OUT
= 4A, TJ ≤ 25°C
OUT
= 4.6A, TJ ≥ 25°C
= 4.6A, TJ ≤ 25°C
= 3A
OUT
= 3A
= 3A
— 0.2 5 µA
is a nominal 7A for
FULL LOAD
.
is 4A. For
IN
and V
FULL LOAD
OUT
TCL1584/1585/1587-04 6/6/97
3
PRELIMINARY INFORMATION
TCL1584
TCL1585
TCL1587
Typical Dropout Voltage vs. Output Current
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
INPUT/OUTPUT DIFFERENTIAL (V)
0.5
0I
OUTPUT CURRENT (A)
7A / 5A / 4.6A / 3A, FAST RESPONSE,
LOW DROPOUT POSITIVE LINEAR
VOLTAGE REGULATORS
FULL LOAD
SIMPLIFIED SCHEMATIC
V
IN
GND
ADJ
TCL1584/5/7
THERMAL
LIMIT
+
–
V
OUT
TCL1584/1585/1587-04 6/6/97
FOR FIXED VOLTAGE DEVICE
4
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