Gamma GM66100-1.8ST3RG 1.0a ultra low dropout voltage regulator Datasheet

GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Description
Features
The GM66100/1/2 series are 1A ultra low-dropout
linear voltage regulators that provide low-voltage,
high output current from an extremely small
package.
‹
Fixed and adjustable output voltages
‹
Typical 410mV Dropout Voltage @ 1A
‹
1A minimum guaranteed output current
The GM66100/1/2 offers extremely low dropout
(typically 410 m V at 1A) and low ground current
(typically 12mA at 1A).
‹
Accurate 1% Guaranteed Tolerance
‹
Current limiting and thermal shutdown
The GM66100 offers 3 Lead packages with a fixed
output voltage options while GM66101/2 offer SO8
packages for fixed and adjustable output voltages
accordingly.
‹
Reverse-battery Protection
‹
Reversed leakage protection
‹
Fast Transient Response
The GM66100/1/2 is ideal for PC add-in cards that
need to convert from standard 5V to 3.3V, 3.3V to
2.5V or 2.5V to 1.8V. A guaranteed maximum
dropout voltage of 630mV over all operating
conditions allows the GM66100/1/2 provide 2.5V
from a supply as low as 3.13V and 1.8V from a
supply as low as 2.43V.
The GM66100/1/2 is fully protected with over
current limiting, thermal shutdown, and reversedbattery protection.
Application
High Efficiency Linear Regulators
Battery Powered Equipment
Ideal for 3.0V to 2.5V conversion
Automotive Electronics
Ideal for 2.5V to 1.8V conversion
Post Regulators for Switching Supplies
Typical Application Circuits
GM66100-2.5
VIN
3.3V
VOUT
2.5V
VOUT
VIN
GM6610xV2.06
Gnd
2
GM66101-2.5
Enable
Shutdown
VIN
3.3V
10uF
2.5V/1A Regulator
Enable
Flag
Error Flag Output
VIN
VOUT
VOUT
2.5V
Gnd
10uF
2.5V/1A Regulator with Error Flag
GM66102
Enable
Enable
Shutdown
VOUT
1.5V
VOUT
R1
VIN
2.5V
VIN
Gnd
Adj
R2
10uF
1.5V/1A Adjustable Regulator
www.gammamicro.com.tw
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Marking Information and Pin Configurations (Top View)
GM66100
TO 252
(D-PAK)
GM66100G
VVAYWW
TO 263
(D2-PAK)
TO 220
SOT223
GM66100G
VVAYWW
GM66100G
VVAYWW
3. VOUT
2. GND
1.VIN
3. VOUT
2. GND
1. VIN
3. VOUT
2. GND
1. VIN
GM66100G
VVAYWW
3. VOUT
2.GND
1. VIN
G: Green Product
VV: Fixed Output (15 = 1.5V, 25 = 3.3V…)
A: Assembly / Test site code
Y: Year
WW: Week
GM66101
SO8
VIN
VOUT
Flag
GM66101G
VVAYWW
EN
G: Green Product
VV: Fixed Output (15 = 1.5V, 25 = 3.3V…)
A: Assembly / Test site code
Y: Year
WW: Week
Gnd
Gnd
Gnd
Gnd
GM66102
G: Green Product
A: Assembly / Test site code
Y: Year
WW: Week
VIN
VOUT
Adj
GM66102G
AYWW
EN
Gnd
Gnd
Gnd
Gnd
GM6610x V2.06
SO8
3
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Ordering Information
Ordering Number
Output Voltage
Package
Shipping
GM66100-1.8TA3RG
1.8V
TO-263
800 Units / Reel
GM66100-1.8TB3TG
1.8V
TO-220
50 Units/Tube
GM66100-1.8TC3TG
1.8V
TO-252
2,500 Units/Reel
GM66100-1.8ST3RG
1.8V
SOT-223
2,500 Units/Reel
GM66100-2.5TA3RG
2.5V
TO-263
800 Units / Reel
GM66100-2.5TB3TG
2.5V
TO-220
50 Units/Tube
GM66100-2.5TC3RG
2.5V
TO-252
2,500 Units / Reel
GM66100-2.5ST3RG
2.5V
SOT223
2,500 Units / Reel
GM66100-3.3TA3RG
3.3V
TO-263
800 Units / Reel
GM66100-3.3TB3TG
3.3V
TO-220
50 Units/Tube
GM66100-3.3TC3TG
3.3V
TO-252
2,500 Units/Reel
GM66100-3.3ST3RG
3.3V
SOT-223
2,500 Units/Reel
GM66100-5.0TA3RG
5.0V
TO-263
800 Units / Reel
GM66100-5.0TB3TG
5.0V
TO-220
50 Units/Tube
GM66100-5.0TC3RG
5.0V
TO-252
2,500 Units / Reel
GM66100-5.0ST3RG
5.0V
SOT223
2,500 Units / Reel
Output Voltage
Package
Shipping
GM66101-1.8S8RG
1.8V
SOP-8
2,500 Units/Reel
GM66101-2.5S8RG
2.5V
SOP-8
2,500 Units/Reel
GM66101-3.3S8RG
3.3V
SOP-8
2,500 Units/Reel
Output Voltage
Package
Shipping
Adj
SOP-8
2,500 Units/Reel
GM66100
Ordering Information (continued)
Ordering Number
GM66101
GM6610xV2.06
Ordering Information (continued)
4
Ordering Number
GM66102
GM66102S8RG
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Absolute Maximum Ratings (Note 1)
Rating
Symbol
Value
Unit
Supply Voltage
VIN
-20 to +20
V
Enable Voltage
VEN
+20
V
Storage Temperature Range
TSTG
- 65 to 150
°C
+ 260
°C
Lead Temperature (Soldering, 10 sec)
ESD
Note 3
Operating Ratings (Note 2)
Symbol
Value
Unit
Supply Voltage
VIN
2.25 to 16
V
Enable Voltage
VEN
2.25 to 16
V
Maximum Power Dissipation
PD(MAX)
Junction Temperature Range
TJ
Package Thermal Resistances
SOT223
SO8
θJC
Note 4
-40 to 125
°C
15
°C/W
20
°C/W
GM6610x V2.06
Rating
5
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Block Diagram
VIN
VOUT
18V
Ref
1.24V
Thermal
Shut Down
Gnd
GM66100 Fixed Regulator Block Diagram
VIN
VOUT
18V
FLAG
Ref
1.24V
EN
Thermal
Shut Down
Gnd
GM66101 Fixed Regulator with Flag and Enable Block Diagram
VIN
VOUT
18V
GM6610xV2.06
Ref
6
1.24V
EN
Adj
Thermal
Shut Down
Gnd
GM66102 Adjustable Regulator with Enable Block Diagram
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Electrical Characteristics:
(VIN = VOUT + 1V, VEN = 2.25V,Unless otherwise specified: TJ = 25°C, Bold values are guaranteed across the full operating
temperature range)
Parameter
Output Voltage
Condition
Symbol
IO = 10mA
VOUT
10mA < IO < 1A, VOUT + 1V < VIN < 8V
Line
Regulation
Load
Regulation
Output
Temperature
Coefficient
Min
1
-2
-2
%
ΔVOI
0.06
0.5
%
VIN = VOUT + 1V, 10mA < IO < 1A
ΔVOL
0.2
1.0
%
ΔVOUT/ ΔT
40
100
ppm/°C
150
200
Note 5
IO = 500mA, ΔVOI = -1%
IO = 750mA, ΔVOI = -1%
250
275
VDO
IO = 500mA, VIN = VOUT + 1V
330
500
410
550
mV
630
700
IO = 100mA, VIN = VOUT + 1V
Current Limit
Unit
IO = 10mA, VOUT + 1V < VIN < 16V
IO = 1A, ΔVOI = -1%
Ground
Current
Note 7
Max
-1
IO = 100mA, ΔVOI = -1%
Dropout
Voltage,
Note 6
Typ
μA
4
IGND
mA
IO = 750mA, VIN = VOUT + 1V
7
IO = 1A, VIN = VOUT + 1V
12
20
1.8
2.5
A
Typ
Max
Unit
08
V
VOUT = 0V,
VIN = VOUT + 1V
ICL
Enable Input
Condition
Symbol
Enable Input
Voltage
Logic low (OFF)
VEN(low)
Logic High (ON)
VEN(high)
VEN = 2.25V
IEN(low)
Enable Input
Current
VEN = 0.8V
Min
2.25
1
15
30
75
IEN(high)
2
μA
4
GM6610x V2.06
Parameter
7
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Flag Output
Parameter
Condition
Symbol
Output Leakage
Current
VOH = 16V
IFLG(leak)
VIN = 0.9V+VOUT Nominal, ICL=250μA
VFLG (DO)
Output Low
Voltage
Note 8
Low Threshold
High Threshold
Min
Typ
Max
0.01
1
2
240
300
Unit
μA
mV
400
93
% of VOUT
99.2
% of VOUT
Hysteresis
%
1
IEN(low)
1
15
30
75
Enable Input
Current
VEN = 0.8V
IEN(high)
Condition
Symbol
2
μA
4
GM66102 Only
Parameter
Reference
Voltage
VREF
Note 9
Adjust Pin Bias
Current
Reference
Voltage Temp
Coefficient
Note 5
Adjust Pin Bias
Current Temp
Coefficient
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
GM6610xV2.06
Note 6:
8
Note 7:
Note 8:
Note 9:
IADJ
Min
Typ
Max
1.228
1.24
1.252
1.215
1.265
1.203
1.277
40
80
Unit
V
μA
120
ΔVREF/ ΔT
20
Δ IADJ / ΔT
0.1
ppm/°C
99.2
nA/°C
Exceeding the absolute maximum ratings may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions is recommended.
PD(MAX) = (TJ(MAX) – TA)/θJA, where θJA is junction to ambient thermal resistance
Output voltage temperature coefficient is ΔVOUT(worst case)/(TJ(MAX)-TJ(MIN)), where TJ(MAX) is 125°C and TJ(MIN) is
0°C
VDO = VIN – VOUT when VOUT decreases to 99% of its nominal output voltage with VIN = VOUT + 1V. For output
voltage below 2.25V, dropout voltage is the input-to-output voltage differential with the minimum input
voltage being 2.25V. Minimum input operating voltage is 2.25V.
IGND is the quiescent current. IIN = IGND + IOUT
For adjustable device and fixed device with VOUT > 2.5V
VREF ≤ VOUT ≤ (VIN – 1V), 2.25V ≤ VIN ≤ 16V, 10mA ≤ IL ≤1A
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Application Information
The GM66100/1/2 is a low dropout voltage regulator suitable for applications which ultra low dropout
performance is needed. 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.
The GM66100/1/2 regulator is fully protected from damage due to fault conditions. Linear current limiting
is provided. 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.
GM66100-x.x
VIN
IN
CIN
VOUT
OUT
GND
COUT
Figure 1. Capacitor Requirements
Output Capacitor
An output capacitor is required for the GM66100/1/2 to maintain stability and improve transient response.
Proper capacitor selection is important to ensure proper operation. The output capacitor selection is
dependent upon the ESR (equivalent series resistance) of the output capacitor to maintain stability.
When the output capacitor is 10μF or greater, the ESR value of the output capacitor should be less than
2Ω for the purpose of transient response improvement as well as stability. Ultra-low-ESR capacitors
(<100mΩ), such as ceramic chip capacitors, may promote instability. A low-ESR solid tantalum
capacitor works extremely well and provides good transient response and stability over temperature.
Aluminum electrolytes can also be used, as long as the ESR of the capacitor is <2Ω.
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.
Input Capacitor
Error Flag
The GM66101 features an error flag (FLG), which monitors the output voltage and sends out an error
signal when the output voltage drops 5% below its expected value. The error flag is an open-collector
output that pulls low under fault conditions and may sink up to 10mA. Low output voltage signifies a
number of possible problems, including an over current fault (the device is in current limit) or low input
voltage. The flag output is inoperative during over temperature conditions. A pull-up resistor from FLG to
either V!N or VOUT is required for proper operation. For information regarding the minimum and maximum
values of pull-up resistance, refer to the graph in the typical characteristics section of the data sheet.
GM6610x V2.06
An input capacitor of 1μF or greater is recommended when the device is more than 4 inches away from
the bulk ac supply capacitance or when the supply is a battery. Small, surface mount, ceramic chip
capacitors can be used for bypassing. Larger values will help to improve ripple rejection by bypassing
the input to the regulator, further improving the integrity of the output voltage.
9
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Enable Input
The GM66101 and GM66102 feature an active-high enable input (EN) which allows on-off control of the
regulator. The EN input has TTL/CMOS compatible thresholds for simple logic interfacing. EN may be
directly tied to VIN and pulled up to the maximum supply voltage.
Transient Response and 3.3V to 2.5V or 2.5V to 1.8V Conversion
The GM66100 series has excellent transient response to variations 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 10μF 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 NPNbased 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 or 1.8V without operating in dropout, NPN based regulators require an input voltage of 3.7V at the
very least.
The GM66100 regulator will provide excellent performance with an input as low as 3.0V or 2.5V
respectively. This gives the PNP based regulators a distinct advantage over older, NPN based linear
regulators.
Minimum Load Current
The GM66100/1/2 regulator is specified between finite loads. If the output current is too small, leakage
currents dominate and the output voltage rises. A 10mA minimum load current is necessary for proper
regulation.
Adjustable Regulator Design
Enable
Shutdown
GM66102
Enable
VOUT
VOUT
R1
VIN
VIN
Gnd
Adj
R2
COUT
Figure 2. Adjustable Regulator with Resistors
VOUT = 1.24V x (1+ R1/R2)
The GM66102 allows programming the output voltage anywhere between 1.24V and the 16V maximum
operating rating of the family. Two resistors are used. The resistor values are calculated by:
GM6610xV2.06
R1 = R2 x (VOUT/1.24 - 1)
10
Where VOUT is the desired output voltage. Figure 2 shows component definition. Applications with widely
varying load currents may scale the resistors to draw the minimum load current required for proper
operation (see above).
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Package Outline Dimensions – SOT223
0.248 - 0.264
(6.30 - 6.71)
0.010 - 0.014
(0.25 - 0.36)
0.116 - 0.124
(2.95 - 3.15)
0.130 - 0.146
(3.30 - 3.71)
0.264 - 0.287
(6.71 - 7.29)
°10 - 16°
0.071
(1.8)
MAX
0.0008 - 0.0040
(0.0203 - 0.1016)
10°- 16 °
0.012
(0.31)
0.090
(2.29)
0.033 - 0.041
(0.84 - 1.04)
NOM
MIN
0.025 - 0.033
(0.64 - 0.84)
0.81
(4.6)NOM
10°
MAX
NOM
Package Outline Dimensions – TO252
0.205 – 0.215
(5.210 – 5.460)
0.039 – 0.050
(1.020 – 1.270)
0.055 – 0.080
(1.400 – 2.030)
0.018 – 0.023
(0.460 – 0.580)
SEATING PLAN
0.370 – 0.410
(9.400 – 10.420)
0.090
(2.285)
TYP
0.180
(4.570)
TYP
0.045 – 0.060
(1.150 – 1.520)
0.030 – 0.045
(0.760 – 1.140)
0.020
(0.510)
MIN
0.018 – 0.023
(0.460 – 0.580)
GM6610x V2.06
0.210 – 0.228
(5.330 – 5.800)
11
GM6610x Series
1.0A 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)
0.090 - 0.110
(2.286 - 2.794)
0.050
(1.270)
0.013 - 0.023
(0.330 - 0.584)
Package Outline Dimensions – SO 8
0.189 - 0.197
(4.800 - 5.004)
0.228 - 0.244
(5.791 - 6.198)
0.016 - 0.050
(0.406 - 0.270)
D
0.014 - 0.020
(0.356 - 0.508)
0.050
(1.270)
TYP
0.150 - 0.157
(3.810 - 3.988)
0.053 - 0.059
(1.346 - 1.753)
SEATING PLAN
GM6610xV2.06
0.004 - 0.010
(0.012 - 0.254)
12
0.008 - 0.010
(0.203 - 0.254)
8.0
MAX
GM6610x Series
1.0A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Ordering Number
GM 66100 -1.8
APM
Gamma
Micro
Circuit
Type
TA3
R
Output
Voltage
Package Type
Shipping Type
1.8
2.5
3.3
5.0
TA3:
TB3:
TC3:
ST3:
R:Taping& Reel
T: Tube
=
=
=
=
1.8V
2.5V
3.3V
5.0V
GM 66101 -1.8
APM
Gamma
Micro
Circuit
Type
S8
R
Output
Voltage
Package Type
Shipping Type
1.8
2.5
3.3
5.0
S8: SOP-8
R:Taping& Reel
T:Tube
S8
R
Output
Voltage
Package Type
Shipping Type
Adj
S8: SOP-8
R:Taping& Reel
T:Tube
=
=
=
=
1.8V
2.5V
3.3V
5.0V
GM 66102
APM
Gamma
Micro
Circuit
Type
TO263
TO220
TO252
SOT223
G
Blank:
Pb-free
G:Green
G
Blank:
Pb-free
G:Green
G
Blank:
Pb-free
G:Green
Note:
Pb-free products:
♦
RoHS compliant and compatible with the current require-ments of IPC/JEDEC J-STD-020.
♦
Suitable for use in Pb-free soldering processes with 100% matte tin (Sn) plating.
8
10
6
♦
Lead-free (RoHS compliant)
♦
Halogen free(Br or Cl does not exceed 900ppm by weight in homogeneous material and total of
Br and Cl does not exceed 1500ppm by weight)
GM6610x V2.06
Green products:
1
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