Gamma GM66301TA5T 3a ultra low-dropout regulator Datasheet

GM66300 Series
2010/3/2
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Description
Features
The GM66300, GM66301 and GM66302 are
3.0A, low dropout linear voltage regulators that
provide a low voltage, high-current output with a
minimum of external components. Utilizing
proprietary Super beta PNP pass element, the
GM66300/1/2 offers extremely low dropout
(typically 400mV at 3.0A) and low ground current
(typically 36mA at 3.0A).
The GM66300/1/2 is ideal for PC add-in cards
that need to convert from standard 3.3V to 2.5V
or 2.5V to 1.8V. A guaranteed maximum dropout
voltage of 500mV over all operating conditions
allows the GM66300/1/2 to provide 2.5V from a
supply as low as 3V, and 1.8V from a supply as
low as 2.5V. The GM66300/1/2 also has fast
transient response for heavy switching
applications. The device requires only 47µF of
output capacitance to maintain stability and
achieve fast transient response.
‹
3.0A minimum guaranteed output current
‹
500mV maximum dropout voltage over
temperature, which is ideal for 3.0V to 2.5V
conversion and 2.5V to 1.8V conversion.
‹
1% initial accuracy
‹
Low ground current
‹
Current limiting and Thermal shutdown
‹
Reversed-battery protection
‹
Reversed-leakage protection
‹
Fast transient response
‹
Error flag output (GM66301 only)
‹
Adjustable version (GM66302 only)
Application
The GM66300/1/2 is fully protected with over
current limiting, thermal shutdown,
reversed-battery protection, reversed-leakage
protection, and reversed-lead insertion. The
GM66301 offers a TTL-logic compatible enable
pin and an error flag that indicates under voltage
and over current conditions. Offered in fixed
voltages, the GM66300/1 comes in the TO-220
and TO-263 packages and is an ideal upgrade to
older, NPN-based linear voltage regulators.
„
PC Add-in Cards
„
High Efficiency Linear Power Supplies
Multi-media and PC Processor Supplies
„
„
Low Voltage Microcontrollers
Automotive Electronics
„
The GM66302 is adjustable version, with On/Off
feature.
Typical Application Circuits
GM66300-2.5
Enable
VOUT
2.5V
VOUT
VIN
Gnd
Shutdown
GM66301-2.5
Enable
VIN
3.3V
47uF
Gnd
Flag
Error Flag Output
VOUT
VOUT
2.5V
47uF
GM66300V2.01
VIN
3.3V
GM66302
Enable
Enable
Shutdown
VIN
VIN
1.0uF
Gnd
VOUT
VOUT
Adj
47uF
www.gammamicro.com.tw
1
GM66300 Series
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Marking Information and Pin Configurations (Top View)
GM66300 (Pb Free)
TO 220
GM66300
VVAYWW
TO 263
(D2-PAK)
GM66300
VVAYWW
3. VOUT
2. GND
1. VIN
3. VOUT
2.GND
1. VIN
VV: Voltage suffix (15 = 1.5V, 50 = 5.0V…A = Adj)
A: Assembly / Test site code
Y: Year
WW: Week
GM66300 (Green Product)
TO 220
GM66300G
VVAYWW
2. GND
1. VIN
3. VOUT
2.GND
2
1. VIN
GM66300V2.01
GM66300G
VVAYWW
TO 263
(D2-PAK)
G: Green Product
VV: Voltage suffix (15 = 1.5V, 50 = 5.0V…A = Adj)
A: Assembly / Test site code
Y: Year
WW: Week
GM66300 Series
2010/3/2
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Marking Information and Pin Configurations (Top View)
GM66301 (Pb Free)
5L TO 220
GM66301
VVAYWW
5L TO 263
GM66301
VVAYWW
5. Flag
4. Output
3. GND
2. Input
1. Enable
5. Flag
4. Output
3. GND
2. Input
1. Enable
VV: Voltage suffix (15 = 1.5V, 50 = 5.0V…A = Adj)
A: Assembly / Test site code
Y: Year
WW: Week
GM66301 (Green Product)
GM66301G
VVAYWW
5L TO 263
GM66301G
VVAYWW
5. Flag
4. Output
3. GND
2. Input
1. Enable
5. Flag
4. Output
3. GND
2. Input
1. Enable
G: Green Product
VV: Voltage suffix (15 = 1.5V, 50 = 5.0V…A = Adj)
A: Assembly / Test site code
Y: Year
WW: Week
GM66300V2.01
5L TO 220
3
GM66300 Series
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Marking Information and Pin Configurations (Top View)
GM66302 (Pb Free)
5L TO 220
GM66302
VVAYWW
5L TO 263
GM66302
VVAYWW
5. Adj
4. Output
3. GND
2. Input
1. Enable
5. Adj
4. Output
3. GND
2. Input
1. Enable
VV: Voltage suffix (15 = 1.5V, 50 = 5.0V…A = Adj)
A: Assembly / Test site code
Y: Year
WW: Week
5L TO 263
GM66302G
VVAYWW
GM66302G
VVAYWW
5. Adj
4. Output
3. GND
2. Input
1. Enable
4
5L TO 220
5.Adj
4. Output
3. GND
2. Input
1. Enable
GM66300V2.01
GM66302 (Green Product)
G: Green Product
VV: Voltage suffix (15 = 1.5V, 50 = 5.0V…A = Adj)
A: Assembly / Test site code
Y: Year
WW: Week
GM66300 Series
2010/3/2
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Ordering Information – Pb Free
Ordering Number
Output Voltage
Package
Shipping
GM66300-1.8TA3T
1.8V
TO-263
50 Units/Tube
GM66300-1.8TA3R
1.8V
TO-263
800 Units / Reel
GM66300-1.8TB3T
1.8V
TO-220
50 Units/Tube
GM66300-2.5TA3T
2.5V
TO-263
50 Units/Tube
GM66300-2.5TA3R
2.5V
TO-263
800 Units / Reel
GM66300-2.5TB3T
2.5V
TO-220
50 Units/Tube
GM66300-3.3TA3T
3.3V
TO-263
50 Units/Tube
GM66300-3.3TA3R
3.3V
TO-263
800 Units / Reel
GM66300-3.3TB3T
3.3V
TO-220
50 Units/Tube
GM66300-5.0TA3T
5.0V
TO-263
50 Units/Tube
GM66300-5.0TA3R
5.0V
TO-263
800 Units / Reel
GM66300-5.0TB3T
5.0V
TO-220
50 Units/Tube
Output Voltage
Package
Shipping
GM66300-1.8TA3TG
1.8V
TO-263
50 Units/Tube
GM66300-1.8TA3RG
1.8V
TO-263
800 Units / Reel
GM66300-1.8TB3TG
1.8V
TO-220
50 Units/Tube
GM66300-2.5TA3TG
2.5V
TO-263
50 Units/Tube
GM66300-2.5TA3RG
2.5V
TO-263
800 Units / Reel
GM66300-2.5TB3TG
2.5V
TO-220
50 Units/Tube
GM66300-3.3TA3TG
3.3V
TO-263
50 Units/Tube
GM66300-3.3TA3RG
3.3V
TO-263
800 Units / Reel
GM66300-3.3TB3TG
3.3V
TO-220
50 Units/Tube
GM66300-5.0TA3TG
5.0V
TO-263
50 Units/Tube
GM66300-5.0TA3RG
5.0V
TO-263
800 Units / Reel
GM66300-5.0TB3TG
5.0V
TO-220
50 Units/Tube
GM66300
Ordering Information – Green Product
Ordering Number
GM66300V2.01
GM66300
5
GM66300 Series
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Ordering Information – Pb Free
Ordering Number
Output Voltage
Package
Shipping
GM66301-1.8TA5T
1.8V
5L-TO-263
50 Units/Tube
GM66301-1.8TA5R
1.8V
5L-TO-263
800 Units / Reel
GM66301-1.8TB5T
1.8V
5L-TO-220
50 Units/Tube
GM66301-2.5TA5T
2.5V
5L-TO-263
50 Units/Tube
GM66301-2.5TA5R
2.5V
5L-TO-263
800 Units / Reel
GM66301-2.5TB5T
2.5V
5L-TO-220
50 Units/Tube
GM66301-3.3TA5T
3.3V
5L-TO-263
50 Units/Tube
GM66301-3.3TA5R
3.3V
5L-TO-263
800 Units / Reel
GM66301-3.3TB5T
3.3V
5L-TO-220
50 Units/Tube
GM66301-5.0TA5T
5.0V
5L-TO-263
50 Units/Tube
GM66301-5.0TA5R
5.0V
5L-TO-263
800 Units / Reel
GM66301-5.0TB5T
5.0V
5L-TO-220
50 Units/Tube
Output Voltage
Package
Shipping
GM66301-1.8TA5TG
1.8V
TO-263-5
50 Units/Tube
GM66301-1.8TA5RG
1.8V
TO-263-5
800 Units / Reel
GM66301-1.8TB5TG
1.8V
TO-220-5
50 Units/Tube
GM66301-2.5TA5TG
2.5V
TO-263-5
50 Units/Tube
GM66301-2.5TA5RG
2.5V
TO-263-5
800 Units / Reel
GM66301-2.5TB5TG
2.5V
TO-220-5
50 Units/Tube
GM66301-3.3TA5TG
3.3V
TO-263-5
50 Units/Tube
GM66301-3.3TA5RG
3.3V
TO-263-5
800 Units / Reel
GM66301-3.3TB5TG
3.3V
TO-220-5
50 Units/Tube
GM66301-5.0TA5TG
5.0V
TO-263-5
50 Units/Tube
GM66301-5.0TA5RG
5.0V
TO-263-5
800 Units / Reel
GM66301-5.0TB5TG
5.0V
TO-220-5
50 Units/Tube
GM66301
Ordering Information – Green Product
Ordering Number
GM66300V2.01
GM66301
6
GM66300 Series
2010/3/2
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Ordering Information – Pb Free
Ordering Number
Output Voltage
Package
Shipping
GM66302TA5T
Adj
TO-263-5
50 Units/Tube
GM66302TA5R
Adj
TO-263-5
800 Units / Reel
GM66302TB5T
Adj
TO-220-5
50 Units/Tube
Output Voltage
Package
Shipping
GM66302TA5TG
Adj
TO-263-5
50 Units/Tube
GM66302TA5RG
Adj
TO-263-5
800 Units / Reel
GM66302TB5TG
Adj
TO-220-5
50 Units/Tube
GM66302
Ordering Information – Green Product
Ordering Number
GM66300V2.01
GM66302
7
GM66300 Series
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
Power Dissipation
PD
Internally Limited
W
Input Power Supply Voltage (Note 1)
VIN
-20 to +20
V
Enable Pin Voltage
VEN
+20
V
Storage Temperature Range
TSTG
- 65 to 150
℃
+ 260
℃
Lead Temperature (Soldering, 5 sec)
Note 1: Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle (< 1%). The maximum
continuous supply voltage is 26V.
Operating Ratings
Parameter
Symbol
Value
Unit
Maximum Operating Input Voltage
VIN
2.5 - 16
V
Operating Junction Temperature
TJ
-40 to +125
℃
Block Diagram
OUT
IN
1.18V
FLAG
O.V.
ILimit
18V
1.24V
VREF
+
R1*
ADJ**
EN
GM66300V2.01
Thermal
Shut down
8
R2*
GND
* Feedback network in fixed versions only
** Adjustable version only
GM66300 Series
2010/3/2
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Electrical Characteristics:
Unless otherwise specified: TJ = 25°C, Bold values are guaranteed across the full operating temperature range.
Parameter
Condition
Symbol
IO = 10mA
Output Voltage
10mA ≤ IO ≤ 3.0A,
VOUT + 1V ≤ VIN ≤ 8V
VOUT
Min
Typ
Max
-1
1
-2
2
Unit
%
Line Regulation
IO = 10mA,
VOUT + 1V ≤ VIN ≤ 8V
∆VOI
0.06
0.5
%
Load Regulation
VIN = VOUT + 1V,
10mA ≤ IO ≤ 3A
∆VOL
0.2
1.0
%
Output Temperature
Coefficient
(Note 5)
∆VOUT/ ∆T
20
100
ppm/℃
65
200
IO = 100mA
Dropout Voltage (Note
6, Note 9)
∆VOUT = -1%
IO = 750A
185
VDO
250
IO = 3.0A
385
550
10
20
IO = 750mA, VIN = VOUT + 1V
Ground Current (Note 7)
mV
IO = 1.5A
IO = 1.5A, VIN = VOUT + 1V
IGND
IO = 1.5A, VIN = VOUT + 1V
Ground Pin Current at
Dropout
VIN = 0.5V less than specified
VOUT,
IO = 10mA
Current Limit
VOUT = 0V, VIN = VOUT + 1V
mA
17
45
IGNDDO
6
mA
ICL
4.5
A
Enable Input GM66301/GM66302
Input Logic
Voltage
Low (Off)
0.8
High (On)
V
2.5
15
VEN = 2.5V
Enable Pin Input Current
30
75
IEN
2
VEN = 0.8V
µA
4
Regulator Output
Current in Shutdown
(Note 8)
10
IOSD
µA
20
Output Leakage Current
VOH = 16V
IFLG(leak)
Output Low Voltage
VIN = 2.5V, IOL = 250µA, Note 9
VFLG(do)
0.01
1
µA
2
220
300
mV
400
Low Threshold
% of VOUT
High Threshold
% of VOUT
Hysteresis
93
VFLG
99.2
1
%
GM66300V2.01
Flag Output (GM66301)
9
GM66300 Series
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Note 1.
Exceeding the absolute maximum ratings may damage the device.
Note 2.
The device is not guaranteed to function outside its operating rating.
Note 3.
Devices are ESD sensitive. Handing precautions recommended.
Note 4.
PD(max)=(TJ(max)-TA)+θJA, where θJA depends upon the printed circuit layout. See “Applications Information”.
Note 5.
Output voltage temperature coefficient is .VOUT(worst case)+(TJ(max)- TJ(min)) where TJ(max) is +125°C and TJ(min) is
GM66300V2.01
-40°C.
10
Note 6.
VDO=VIN-VOUT when VOUT decreases to 99% of its nominal output voltage with VIN=VOUT+1V. For output voltages
below 2.5V, dropout voltage is the input-to-output voltage differential with the minimum input voltage being 2.5V. Minimum
input operating voltage is 2.5V.
Note 7.
IGND is the quiescent current. IIN=IGND+IOUT.
Note 8.
VEN≒0.8V, VIN≒8V, and VOUT=0V.
Note 9.
For 1.8V device, VIN=2.5V.
GM66300 Series
2010/3/2
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Typical Application Circuits
The GM66300/01/02 is a high performance, low dropout voltage regulator suitable for moderate to high-current
voltage regulator applications. Its 500mV dropout voltage at full load makes it especially valuable in battery-powered
systems and a high-efficiency noise filter in post-regulator applications.
Unlike older NPN-pass transistor designs, where the minimum dropout voltage is limited by the base-to-emitter voltage
drop and collector-to-emitter saturation voltage, dropout performance of the PNP output of these devices is limited
only by the low VCE saturation voltage. A trade-off for the low dropout voltage is a varying base drive requirement.
Super beta PNP process reduces this drive requirement to only 2% to 5% of the load current.
The GM66300/01/02 regulator is fully protected from damage due to fault conditions. Current limiting is provided. This
limiting is linear, output current during overload conditions is constant. Thermal shutdown disables the device when
the die temperature exceeds the maximum safe operating temperature. Transient protection allows device (and load)
survival even when the input voltage spikes above and below nominal. The output structure of these regulators allows
voltages in excess of the desired output voltage to be applied without reverse current flow.
•
Thermal design
Linear regulators are simple to use. The most complicated design parameters to consider are thermal
characteristics.
Thermal design requires four application-specific parameters:
• Maximum ambient temperature (TA)
• Output Current (IOUT)
• Output Voltage (VOUT)
• Input Voltage (VIN)
• Ground Current (IGND)
Calculate the power dissipation of the regulator from these numbers and the device parameters from this
datasheet, where the ground current is taken from data sheet
PD = (VIN - VOUT) x IOUT + VIN x IGND
The heat sink thermal resistance is determined by:
θJA =
TJ(max) – TA
PD
– (θJC +θCS)
where TJ(max) ≤125°C and θCS is between 0°C and 2°C/W.
The heat sink may by significantly reduced in applications where the minimum input voltage is known and is
large compared with the dropout voltage. Use a series input resistor to drop excessive voltage and distribute the
heat between this resistor and the regulator. The low dropout properties of Super βeta PNP regulators allow
significant reductions in regulator power dissipation and the associated heat sink without compromising
performance. When this technique is employed, a capacitor of at least 1.0µF is needed directly between the
input and regulator ground. Refer to Application Note 9 for further details and examples on thermal design and
heat sink specification.
Output Capacitor
The GM66300/1/2 requires an output capacitor to maintain stability and improve transient response. Proper
capacitor selection is important to ensure proper operation. The GM66300/1/2 output capacitor selection is
dependent upon the ESR (equivalent series resistance) of the output capacitor to maintain stability. When the
output capacitor is 47µF or greater, the output capacitor should have less than 1. of ESR. This will improve
transient response as well as promote stability. Ultra-low ESR capacitors, such as ceramic chip capacitors may
promote instability. These very low ESR levels may cause an oscillation and/or underdamped transient
response. A low-ESR solid tantalum capacitor works extremely well and provides good transient response and
stability over temperature. Aluminum electrolytics can also be used, as long as the ESR of the capacitor is ≤1Ω.
The value of the output capacitor can be increased without limit. Higher capacitance values help to improve
transient response and ripple rejection and reduce output noise.
GM66300V2.01
•
11
GM66300 Series
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
•
Input Capacitor
An input capacitor of 1µF or greater is recommended when the device is more than 4 inches away from the bulk
as supply capacitance, or when the supply is a battery. Small, surfacemount, ceramic chip capacitors can be
used for the bypassing. Larger values will help to improve ripple rejection by bypassing the input to the regulator,
further improving the integrity of the output voltage.
•
Transient Repsonse and 3.3V to 2.5V and 2.5V to 1.8V Conversions
The GM66300/1/2 has excellent transient response to variations in input voltage and load current. The device
has been designed to respond quickly to load current variations and input voltage variations. Large output
capacitors are not required to obtain this performance. A standard 47µF output capacitor, preferably tantalum, is
all that is required. Larger values help to improve performance even further. By virtue of its low-dropout voltage,
this device does not saturate into dropout as readily as similar NPN-based designs.
When converting from 3.3V to 2.5V or 2.5V to 1.8V, the NPN-based regulators are already operating in
dropout, with typical dropout requirements of 1.2V or greater. To convert down to 2.5V without operating in
dropout, NPN-based regulators require an input voltage of 3.7V at the very least. TheGM66300/1/2 regulator
will provide excellent performance with an input as low as 3.0V or 2.5V. This gives the PNP-based regulators a
distinct advantage over older, NPN-based linear regulators.
•
Minimum Load Current
The MIC39300/1/2 regulator is specified between finite loads. If the output current is too small, leakage
dominate
and the output voltage rises. A 10mA minimum load current is necessary for proper regulation.
•
Error Flag
The GM66301 version features an error flag circuit which monitors the output voltage and signals an error
condition when the voltage drops 5% below the nominal output voltage. The error flag is an open-collector
output that can sink 10mA during a fault condition. Low output voltage can be caused by a number of problems,
including an over current fault (device in current limit) or low input voltage. The flag is inoperative during over
temperature shutdown. When the error flag is not used, it is best to leave it open. The flag pin can be tied
directly to pin 4, the output pin.
•
Enable Input
GM66300V2.01
The GM66301/2 version features an enable input for on/off control of the device. Its shutdown state draws
“zero” current (only microamperes of leakage). The enable input is TTL/CMOS compatible for simple logic
interface, but can be connected to up to 20V. When enabled, it draws approximately 15µA.
12
GM66300 Series
2010/3/2
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Package Outline Dimensions – TO-263-5
0.390 - 0.410
(9.91 - 10.41)
0.260 - 0.280
(6.60 - 7.71)
0.050
(1.27)
0.175 - 0.183
(4.45 - 4.65)
0.048 - 0.052
(1.22 - 1.32)
0.330 - 0.350
(8.38 - 8.89)
0.565 max
(14.35) max
7
3
0.090 - 0.110
(2.29 - 2.79)
0.015 - 0.030
(0.38 - 0.76)
0.028 - 0.038
(0.71 - 0.97)
0.057 - 0.077
(1.45 - 1.96)
Package Outline Dimensions – TO-220-5
0.048 - 0.052
(1.22 - 1.32)
0.400 + 0.015
0.400 - 0.005
(0.38 + 0.18)
(0.38 - 0.03)
0.240 - 0.260
(6.10 - 6.60)
0.175 - 0.185
(4.45 - 4.75)
0.100 - 0.120
(2.54 - 3.05)
0.149 - 0.153
(3.78 - 3.89)
0.330 - 0.350
(8.38 - 8.89)
0.525 - 0.555
(13.34 - 14.10)
0.030 - 0.040
(0.76 - 1.02)
0.057 - 0.077
(1.45 - 1.96)
0.105 + 0.010
0.105 - 0.010
0.015 + 0.007
0.015 - 0.001
(2.67 + 0.25)
(2.67 - 0.38)
(0.38 + 0.18)
(0.38 - 0.03)
GM66300V2.01
0.525 - 0.555
(13.34 - 14.10)
13
GM66300 Series
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Package Outline Dimensions – TO263
0.390 - 0.415
(9.906 - 10.541)
0.105 - 0.180
(4.191 - 4.572)
0.060
(1.524)
TYP
0.045 - 0.055
(1.143 - 1.397)
15
TYP
0.330 - 0.370
(8.382 - 9.398)
0.059
(1.499)
TYP
0.143 + 0.012
0.143 - 0.002
(3.632 + 0305)
(3.362 - 0.508)
0.050 +/- 0.012
(1.270 +/- 0.305)
0.020 - 0.039
(0.510 - 0.990)
GM66300V2.01
0.090 - 0.110
(2.286 - 2.794)
14
0.050
(1.270)
0.013 - 0.023
(0.330 - 0.584)
GM66300 Series
2010/3/2
3.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Ordering Number
GM 66300 -1.5
APM
Gamma
Micro
Circuit
Type
TA3
R
Output
Voltage
Package
Type
Shipping Type
1.8
2.5
3.3
5.0
TA3: TO263
TB3: TO220
R:Taping& Reel
T: Tube
TA5
R
Output
Voltage
Package
Type
Shipping Type
1.8
2.5
3.3
5.0
TA5:
TO263-5
TB5:
TO220-5
R:Taping& Reel
T:Tube
=
=
=
=
1.8V
2.5V
3.3V
5.0V
GM 66301 -1.5
APM
Gamma
Micro
Circuit
Type
=
=
=
=
1.8V
2.5V
3.3V
5.0V
GM 66302 -A
Circuit
Type
R
Output
Voltage
Package Type
Shipping Type
Adj
TA3: TO263-5
TB3: TO220-5
R:Taping& Reel
T:Tube
Blank:
Pb-free
G:Green
G
Blank:
Pb-free
G:Green
G
Blank:
Pb-free
G:Green
GM66300V2.01
APM
Gamma
Micro
TA5
G
8
10
6
15
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