LD3117G-15-AE3-I-R [UTC]
500mA LOW DROPOUT LINEAR VOLTAGE REGULATORS;
| 型号： | LD3117G-15-AE3-I-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | 500mA LOW DROPOUT LINEAR VOLTAGE REGULATORS |
| 文件： | 总4页 (文件大小：219K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
LD3117
LINEAR INTEGRATED CIRCUIT
500mA LOW DROPOUT LINEAR
VOLTAGE REGULATORS
DESCRIPTION
The UTC LD3117 are 500mA fixed output voltage low dropout
linear regulators. Wide range of available output voltage fits most of
applications. Built-in output current-limiting most thermal-limiting
provide maximal protection against any fault conditions.
FEATURES
*Guaranteed 500mA output current
*Input voltage range up to 20V
*Extremely tight load regulation
*Fast transient response
*Current-limiting and Thermal-limiting
*Three-terminal adjustable or fixed 1.5V, 1.8V, 2.2V, 2.5V, 2.7V,
2.8V, 2.9V,3.0V, 3.3V, 3.5V, 3.6V, 3.7V, 4.7V, 5.0V
ORDERING INFORMATION
1
○
Ordering Number
Lead Free
Package
SOT-23
Packing
Pin Assignment
Halogen Free
A: GOI
B: OGI
C: GIO
D: IGO
1
1
LD3117L-xx-AE3-○-R
LD3117G-xx-AE3-○-R
R: Tape Reel
Note: 1. Pin assignment: I: VIN (Positive Power Input) O: VOUT (Output) G: GND (Ground/Adjustable)
2. xx: Output Voltage, refer to Marking Information.
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Copyright © 2018 Unisonic Technologies Co., Ltd
QW-R102-104.a
LD3117
LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
VOLTAGE
CODE
PIN
CODE
PACKAGE
PIN 1 PIN 2 PIN 3
MARKING
15:1.5V
18:1.8V
22:2.2V
25:2.5V
27:2.7V
28:2.8V
29:2.9V
30:3.0V
33:3.3V
35:3.5V
36:3.6V
37:3.7V
47:4.7V
50:5.0V
AD:ADJ
A
B
C
D
G
O
G
I
O
G
I
I
I
SOT-23
O
O
G
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QW-R102-104.a
LD3117
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VIN
RATINGS
-0.3 ~ +20
295
UNIT
V
Input Voltage VIN
Power Dissipation
PD
mW
°C
Operating Temperature
Storage Temperature
TOPR
TSTG
-40 ~ +85
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
335
UNIT
°C/W
Junction to Ambient
θJA
ELECTRICAL CHARACTERISTICS (TA=25°C, CIN=1μF, COUT=10μF, unless otherwise specified)
For LD3117-1.5V, 1.8V, 2.2V, 2.5V, 2.7V, 2.8V, 2.9V, 3.0V
PARAMETER SYMBOL
TEST CONDITIONS
IL=2mA, VIN-VOUT=1.4V
IL=500mA
MIN
1.47
1.77
2.16
2.45
2.65
2.74
2.84
2.94
TYP MAX UNIT
1.50
1.80
2.20
2.50
2.70
2.80
2.90
3.00
1.53
1.83
2.24
2.55
2.75
2.86
2.96
3.06
1.5
V
V
V
V
Output Voltage
VOUT
V
V
V
V
Dropout Voltage (Note 4,5)
Line Regulation
VD
V
∆VOUT IL=2mA, VIN-VOUT=2V ~ VIN=9V
∆VOUT IL=2mA ~ 500mA, VIN-VOUT =2V
0.5
%VOUT
mV
mA
mA
Load Regulation (Note 2)
Current Limit (Note 3)
Standby Current
10
50
ILIMIT
VIN-VOUT=2V, VOUT=0V
IL=0, VIN=9V
550
IST-BY
5.0
For LD3117-ADJ 3.3V, 3.5V, 3.6V, 3.7V, 4.7V, 5.0V
PARAMETER SYMBOL
ADJUSTABLE (R1=120Ω, R2=200Ω, VOUT=3.3V)
TEST CONDITIONS
VIN-VOUT=2V, IL=2mA
MIN
TYP MAX UNIT
Reference Voltage
VREF
1.238 1.250 1.262
V
3.23
3.43
3.53
3.63
4.61
4.90
3.30
3.50
3.60
3.70
4.70
5.00
3.37
3.57
3.67
3.77
4.79
5.10
1.3
V
V
V
Output Voltage-LD3117
VOUT
IL=2mA, VIN-VOUT=1.4V
V
V
V
V
Dropout Voltage
(Notes 4, 5)
LD3117
LD3117-ADJ
VD
VD
IL=500mA
IL=500mA
1.5
V
Line Regulation
Load Regulation
(Note 2)
∆VOUT IL=2mA, VIN-VOUT=2V ~ VIN=12V
0.5
%VOUT
∆VOUT IL=2mA ~ 500mA, VIN-VOUT =2V
10
50
mV
Current Limit (Note 3)
Standby current
Adjust Pin Current
ILIMIT
IST-BY
IADJ
VIN-VOUT=2V, VOUT=0V
IL=0, VIN=12V
550
mA
mA
μA
5.0
200
5
VIN=12V
Adjust Pin Current Change
∆IADJ
VIN=2.75V~12V, IL=1mA~500mA
μA
Notes: 1. Guaranteed by design.
Note 2. Regulation is measured at constant junction temperature, using pulsed ON time.
Note 3. Current Limit is measured at constant junction temperature, using pulsed ON time.
Note 4. Dropout is measured at constant junction temperature, using pulsed ON time, and the criterion is VOUT
inside target value±2%.
Note 5: Dropout test is skipped at the condition of VIN<3V.
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QW-R102-104.a
LD3117
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
VOUT
VIN
UTC
VOUT
VIN
LD3117
+
+
CI
CO
1μF
10μF
GND
APPLICATION INFORMATION
A 10μF (or larger) capacitor is recommended between VOUT and GND for stability. The part may oscillate without
the capacitor. Any type of capacitor can be used, but not Aluminum electrolytics when operating below -25°C. The
capacitance may be increased without limit.
A 1μF capacitor (or larger) should be placed between VIN to GND.
LD3117 ADJUSTABLE
VIN
VOUT
UTC
LD3117
VIN
VOUT
+
+
1uF
10uF
ADJ
VREF
R1
IADJ
+
R2
10uF
CR
CR:10uF to improve ripple rejection
VOUT=VREF(1+R2/R1)+IADJ*R2
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. UTC reserves the right to
make changes to information published in this document, including without limitation specifications and
product descriptions, at any time and without notice. This document supersedes and replaces all
information supplied prior to the publication hereof.
UNISONIC TECHNOLOGIES CO., LTD
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QW-R102-104.a
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