LD1117-2.85V-A(SOT-223) [UTC]
Regulator, 1 Output, BIPolar,;
| 型号： | LD1117-2.85V-A(SOT-223) |
| 厂家： | 
Unisonic Technologies |
| 描述： | Regulator, 1 Output, BIPolar, |
| 文件： | 总13页 (文件大小：188K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
LOW DROP FIXED AND
ADJUSTABLE POSITIVE VOLTAGE
REGULATORS
1
SOT-223
TO-220
TO-263
SOP-8
DESCRIPTION
The UTC LD1117/A is a LOW DROP Voltage Regulator
able to provide up to 0.8/1.0A of Output Current, available
even in adjustable version (Vref=1.25V). Concerning fixed
versions, are offered the following Output Voltages: 1.5V,
1.8V, 2.5V, 2.85V, 3.0V, 3.3V, 3.6V and 5.0V. The 2.85V type
is ideal for SCSI-2 lines active termination. The device is
supplied in: SOT-223, TO-252, TO-263, TO-263-3, SOP-8 and
TO-220. The SOT-223, TO-263, TO-263-3 and TO-252
surface mount packages optimize the thermal characteristics
even offering a relevant space saving effect. High efficiency is
assured by NPN pass transistor. In fact in the case, unlike
than PNP one, the Quiescent Current flows mostly into the
load. Only a very common 10µF minimum capacitor is needed
for stability. On chip trimming allows the regulator to reach a
very tight output voltage tolerance, within ±1% at 25°C. The
ADJUSTABLE LD1117/A is pin to pin compatible with the
other standard Adjustable voltage regulators maintaining the
better performances in terms of Drop and Tolerance.
1
1
TO-252
1
1
TO-263-3
SOP-8
1: GND; 2,3,6,7: Vout;
4: Vin; 5,8: NC
FEATURES
*Low dropout voltage (1V Typ.)
*2.85V device performances are suitable for SCSI-2 active
termination
*Output current up to 0.8/1.0A
*Fixed output voltage of: 1.5V, 1.8V, 2.5V, 2,85V, 3.0V, 3.3V,
*3.6V, 5.0V
*Adjustable version availability (Vref=1.25V)
*Internal current and thermal limit
*Available in ±1%(at 25°C) and 2% in all temperature range
*Supply voltage rejection: 75dB (TYP)
*Temperature range: 0°C to 125°C
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE VOLTAGE PIN CODE PIN 1 PIN 2 PIN 3
CODE
MARKING
15:1.5V
18:1.8V
SOT-223 25:2.5V
28:2.85V
A
B
C
D
A
B
C
D
GND
OUT
GND
IN
OUT
GND
IN
IN
IN
CURRENT
CODE
LD1117
2
PIN CODE
VOLTAGE
CODE
DATE
CODE
OUT
OUT
IN
30:3.0V
33:3.3V
36:3.6V
50:5.0V
1
GND
OUT
GND
IN
3
GND
OUT
GND
IN
UTC
LD1117
TO-220
TO-252
TO-263
TO-263-3
CURRENT
CODE
PIN CODE
IN
AD:ADJ
VOLTAGE
CODE
DATE
OUT
OUT
CODE
1
2
3
GND
Note: The current code “A” means output current up to 1.0A, while without “A” means output current up to 0.8A.
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VIN
VALUE
15
UNIT
V
DC Input Voltage
Power Dissipation
Storage temperature
Operating Junction Temperature
Ptot
Tstg
Top
12
W
°C
°C
-65 ~ +150
0 ~ +125
Note: Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional
operation under there condition is not implied. Over the above suggested Max Power Dissipation a Short Circuit
could definitively damage the device.
UTC UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
THERMAL DATA
PARAMETER
SYMBOL
Rth-case
VALUE
UNIT
Thermal Resistance Junction-case
SOT-223
15
20
8
3
3
°C/W
°C/W
°C/W
°C/W
°C/W
SOP-8
TO-252
TO-220
TO-263
Thermal Resistance Junction-ambient
TO-220
Rthj-amb
50
°C/W
APPLICATION CIRCUIT
UTC LD1117/A-1.5 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Vin=3.5V, Io=10mA, Tj=25°C
Io=0 to 800/1000mA,
MIN. TYP.
1.485 1.500
1.470 1.500
MAX.
1.515
1.530
UNIT
VV
V
Output Voltage
Vo
Vo
Output Voltage
Vin=3 to 8V
Line Regulation
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
eN
SVR
Vin=3 to 8V, Io=0mA
Vin=3V, Io=0 to 800/1000mA
1
1
0.5
0.3
6
10
mV
mV
%
%
V
mA
mA
µV
dB
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
1000 hrs, Tj=125°C
Io=100mA
Vin≤10V
Vin=6.5V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
Io=40mA, f=120Hz, Tj=25°C, Vin=4.5V,
Vripple=1Vpp
15
10
1200
5
800
60
950
100
75
Dropout Voltage
Vd
Io=100mA
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
V
V
Io=500mA
Io=800mA
Io=1000 mA
Ta=25°C, 30ms Pulse
V
V
%/W
Thermal Regulation
UTC UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
UTC LD1117/A-1.8 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Vin=3.8V, Io=10mA, Tj=25°C
Io=0 to 800/1000mA, Vin=3.3 to 8V
Vin=3.3 to 8V, Io=0mA
MIN. TYP.
MAX.
1.820
1.840
6
UNIT
V
V
mV
mV
%
%
V
mA
mA
µV
dB
Output Voltage
Vo
1.780 1.800
Output Voltage
Vo
1.760
1
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
Vin=3.3V, Io=0 to 800/1000mA
1
0.5
0.3
10
1000 hrs, Tj=125°C
Io=100mA
Vin≤8V
Vin=6.8V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
Io=40mA, f=120Hz, Tj=25°C, Vin=5.5V,
Vripple=1Vpp
10
10
1200
5
800
60
950
100
75
Output Noise Voltage
Supply Voltage
Rejection
eN
SVR
Dropout Voltage
Vd
Io=100mA
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
V
V
Io=500mA
Io=800mA
Io=1000mA
Ta=25°C, 30ms Pulse
V
V
%/W
Thermal Regulation
UTC LD1117/A-2.5 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN. TYP.
MAX.
2.525
2.550
2.550
2.600
6
UNIT
V
Vin=4.5V, Io=10mA, Tj=25°C
±1%
±2%
±2%
±4%
Output Voltage
Vo
2.475 2.500
2.450 2.500
V
Io=0 to 800/1000mA,
Vin=3.9 to 10V
Output Voltage
Vo
2.450
2.400
1
V
V
mV
mV
%
%
V
mA
mA
µV
dB
Line Regulation
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
eN
SVR
Vin=3.9 to 10V, Io=0mA
Vin=3.9V, Io=0 to 800/1000mA
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
1
0.5
0.3
10
1000 hrs, Tj=125°C
Io=100mA
Vin≤10V
Vin=7.5V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
15
10
1200
5
800
60
950
100
75
Io=40mA, f=120Hz, Tj=25°C, Vin=5.5V,
Vripple=1Vpp
Dropout Voltage
Vd
Io=100mA
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
V
V
Io=500mA
Io=800mA
Io=1000mA
Ta=25°C, 30ms Pulse
V
V
%/W
Thermal Regulation
UTC UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
UTC LD1117/A-2.85 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Vin=4.85V, Io=10mA, Tj=25°C
Io=0 to 800/1000mA,Vin=4.25 to 10V
Vin=4.25 to 10V, Io=0mA
MIN. TYP.
MAX.
2.88
2.91
6
UNIT
V
V
mV
mV
%
%
V
mA
mA
µV
DB
Output Voltage
Vo
2.82
2.79
2.85
Output Voltage
Vo
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
1
Vin=4.25V, Io=0 to 800/1000mA
1
0.5
0.3
10
1000 hrs, Tj=125°C
Io=100mA
Vin≤10V
Vin=7.85V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
Io=40mA, f=120Hz, Tj=25°C, Vin=5.85V, 60
15
10
1200
5
800
950
100
75
eN
SVR
Vripple=1Vpp
Io=100mA
Dropout Voltage
Vd
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
V
V
V
V
Io=500mA
Io=800mA
Io=1000mA
Thermal Regulation
Ta=25°C, 30ms Pulse
%/W
UTC LD1117/A-3.0 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN. TYP.
MAX.
3.03
3.06
3.06
3.12
6
UNIT
V
Vin=5V, Io=10mA, Tj=25°C
±1%
±2%
±2%
±4%
Output Voltage
Vo
2.97
2.94
2.94
2.88
3.00
3.00
V
Io=0 to 800/1000mA,
Vin=4.5 to 10V
Output Voltage
Vo
V
V
mV
mV
%
%
V
mA
mA
µV
dB
Line Regulation
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
eN
SVR
Vin=4.5 to 12V, Io=0mA
Vin=4.5V, Io=0 to 800/1000mA
1
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
1
0.5
0.3
10
1000 hrs, Tj=125°C
Io=100mA
Vin≤12V
Vin=8V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
15
10
1200
5
800
60
950
100
75
Io=40mA, f=120Hz, Tj=25°C, Vin=6V,
Vripple=1Vpp
Dropout Voltage
Vd
Io=100mA
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
V
V
Io=500mA
Io=800mA
Io=1000mA
Ta=25°C, 30ms Pulse
V
V
%/W
Thermal Regulation
UTC UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
UTC LD1117/A-3.3 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN. TYP.
MAX.
3.333
3.365
3.365
3.440
6
UNIT
V
Vin=5.3V, Io=10mA, Tj=25°C
±1%
±2%
±2%
±4%
Output Voltage
Vo
3.267 3.300
3.235 3.300
V
Io=0 to 800/1000mA,
Vin=4.75 to 10V
Output Voltage
Vo
3.235
3.160
1
V
V
mV
mV
%
%
V
mA
mA
µV
DB
Line Regulation
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
eN
SVR
Vin=4.75 to 15V, Io=0mA
Vin=4.75V, Io=0 to 800/1000mA
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
1
0.5
0.3
10
1000 hrs, Tj=125°C
Io=100mA
Vin≤15V
Vin=8.3V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
15
10
1200
5
800
60
950
100
75
Io=40mA, f=120Hz, Tj=25°C, Vin=6.3V,
Vripple=1Vpp
Dropout Voltage
Vd
Io=100mA
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
V
V
Io=500mA
Io=800mA
Io=1000mA
Ta=25°C, 30ms Pulse
V
V
%/W
Thermal Regulation
UTC LD1117/A-3.6 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Vin=5.6V, Io=10mA, Tj=25°C
Io=0 to 800/1000mA,
MIN. TYP.
3.564 3.600
3.528 3.600
MAX.
3.636
3.672
UNIT
V
V
Output Voltage
Vo
Vo
Output Voltage
Vin=5 to 10V
Line Regulation
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
eN
SVR
Vin=5 to 15V, Io=0mA
Vin=5V, Io=0 to 800/1000mA
1
1
0.5
0.3
6
10
mV
mV
%
%
V
mA
mA
µV
DB
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
1000 hrs, Tj=125°C
Io=100mA
Vin≤15V
Vin=8.6V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
Io=40mA, f=120Hz, Tj=25°C, Vin=6.6V,
Vripple=1Vpp
15
10
1200
5
800
60
950
100
75
Dropout Voltage
Vd
Io=100mA
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
V
V
Io=500mA
Io=800mA
Io=1000mA
Ta=25°C, 30ms Pulse
V
V
%/W
Thermal Regulation
UTC UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
UTC LD1117/A-5.0 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN. TYP.
MAX.
5.05
5.10
5.10
5.20
10
UNIT
V
Vin=7V, Io=10mA, Tj=25°C
±1%
±2%
±2%
±4%
Output Voltage
Vo
4.95
4.90
4.90
4.80
5.00
5.00
V
Io=0 to 800/1000mA,
Vin=6.5 to 15V
Output Voltage
Vo
V
V
mV
mV
%
%
V
mA
mA
µV
dB
Line Regulation
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
eN
SVR
Vin=6.5 to 15V, Io=0mA
Vin=6.5V, Io=0 to 800/1000mA
1
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
1
0.5
0.3
15
1000 hrs, Tj=125°C
Io=100mA
Vin≤15V
Vin=10V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
15
10
1200
5
800
60
950
100
75
Io=40mA, f=120Hz, Tj=25°C, Vin=8V,
Vripple=1Vpp
Dropout Voltage
Vd
Io=100mA
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
V
V
Io=500mA
Io=800mA
Io=1000mA
Ta=25°C, 30ms Pulse
V
V
%/W
Thermal Regulation
UTC LD1117/A-ADJUSTABLE ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
Reference Voltage
Reference Voltage
SYMBOL
TEST CONDITIONS
Vin-VO=2V, Io=10mA, Tj=25°C
Io=10 to 800/1000mA, Vin-Vo=1.4 to
10V
MIN. TYP.
1.238
1.225
MAX.
1.262
1.275
UNIT
V
V
Vref
1.25
Vref
Line Regulation
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Iadj
∆Iadj
Vin-Vo=1.5 to 13.75V, Io=10mA
Vin-Vo=3V, Io=10 to 800/1000mA
0.035
0.10
0.50
0.3
0.200
0.400
%
%
%
%
V
µA
µA
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Adjustment Pin Current
Adjustment Pin Current
Change
1000 hrs, Tj=125°C
15
120
5
Vin≤15V
Vin-Vo=1.4 to 10V,
Io=10 to 800/1000mA
60
1
Minimum Load Current
Output Current
Output Noise (%Vo)
Supply Voltage
Rejection
Io(min) Vin=15V
2
5
mA
mA
%
Io
eN
SVR
Vin-Vo=5V, Tj=25°C
800
60
950
0.003
75
1200
B=10Hz to 10KHz, Tj=25°C
Io=40mA, f=120Hz, Tj=25°C,
Vin-Vo=3V, Vripple=1Vpp
Io=100mA
dB
Dropout Voltage
Vd
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
V
V
V
V
Io=500mA
Io=800mA
Io=1000mA
Thermal Regulation
Ta=25°C, 30ms Pulse
%/W
UTC UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATIONS
FIG.1 Negative Supply
FIG.2 Active Terminator for SCSI-2 BUS
UTC UNISONIC TECHNOLOGIES CO., LTD.
8
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
FIG.3 Circuit for Increasing Output Voltage
FIG.4 Voltage Regulator With Reference
UTC UNISONIC TECHNOLOGIES CO., LTD.
9
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
FIG.5 Battery Backed-up Regulated Supply
FEEDBACK PATH
UTC UNISONIC TECHNOLOGIES CO., LTD.
10
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
FIG.6 Post-Regulated Dual Supply
UTC UNISONIC TECHNOLOGIES CO., LTD.
11
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
LD1117/A ADJUSTABLE APPLICATION NOTE
The LD1117/A ADJUSTABLE has a thermal stabilized 1.25±0.012V reference voltage between the OUT and ADJ
pins. IADJ is 60µA typ. (120µA max.) and ∆IADJ is 1µA typ. (5µA max.).
R1 is normally fixed to 120Ω. From figure 7 we obtain:
VOUT=VREF+R2(IADJ + IR1)=VREF + R2(IADJ + VREF / R1)=VREF(1+R2/R1) + R2 x IADJ
.
In normal application R2 value is in the range of few Kohm,, so the R2 X IADJ product could not be considered in the
VOUT calculation; then the above expression becomes: VOUT=VREF(1+R2/R1)
In order to have the better load regulation it is important to realize a good Kelvin connection of R1 and R2 resistors.
In particular R1 connection must be realized very close to OUT and ADJ pin, while R2 ground connection must be
placed as near as possible to the negative Load pin. Ripple rejection can be improved by introducing a 10µF
electrolytic capacitor placed in parallel to the R2 resistor (See Fig. 8)
FIG.7 Adjustable Output Voltage Application Circuit
FIG.8 Adjustable Output Voltage Application with improved Ripple Rejection.
UTC UNISONIC TECHNOLOGIES CO., LTD.
12
QW-R102-006,J
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
Fig.2 Output Voltage vs.
Temperautre
Fig.1 Reference Voltge vs.
Temperature
1.250
1.245
1.240
1.235
1.230
1.225
1.220
1.215
3.70
3.65
3.60
3.55
3.50
3.45
3.40
V
OUT SET WITH 1% RESISTORS
Vout=3.6V
3.35
3.30
Vout=3.3V
1.210
1.205
1.200
3.25
3.20
-75 -50 -25
Note: LD1117 Only
-75 -50 -25
0
25 50 75 100 125 150 175
0
25 50 75 100 125 150 175
Junction Temperature(°C)
Junction Temperature(°C)
Fig.3 Maximum Power Dissipation
10
8
TO-263 & TO-252
6
4
SOT-223
2
0
25
45
65
85
105
125
Case Temperature(°C)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC UNISONIC TECHNOLOGIES CO., LTD.
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