UNISONIC TECHNOLOGIES CO., LTD
LD2117/A
LOW DROP FIXED AND
ADJUSTABLE POSITIVE
VOLTAGE REGULATORS
DESCRIPTION
LINEAR INTEGRATED CIRCUIT
The UTC
LD2117/A
is a low dropout, 3-terminal positive
voltage regulator designed to provide output current up to
800mA/1A, There are adjustable versions (V
REF
=1.25V) and
various fixed versions.
FEATURES
* Low dropout voltage
* Suitable for SCSI-2 active termination if V
OUT
set to 2.85V
* Output current up to 0.8A for 2117 and 1.0A for 2117A
* Built-in current limit and over temperature protection
* Available in ±1%(at 25°C) and 2% in all temperature range
* Ultra low current consumption (0.35mA typ.)
* Ultra low Adjustment Current (7μA typ.)
* Ultra low minimum Load (0.3mA typ.)
* Stable with low ESR ceramic output capacitor (MLCC)
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
-
LD2117L-xx-TN3--R
LD2117G-xx-AA3--R
LD2117G-xx-TN3--R
Package
SOT-223
TO-252
Pin Assignment
A: AOI
B: OAI
C: AIO
D: IAO
Packing
Tape Reel
Notes: 1.
: Current code: Blank: 800mA
A: 1A
2. Pin Assignment: I: V
IN
O: V
OUT
A: ADJ
3. xx: Output Voltage, Refer to Marking Information.
LD2117 1 G-xx-AA3- 2 - R
(1)Packing Type
(2)Pin Assignment
(3)Package Type
(4)Output Voltage Code
(5)Green Package
(6)Current Code
(1) R: Tape Reel
(2) refer to Pin Assignment
(3) AA3: SOT-223, TN3: TO-252
(4) xx: refer to Marking Information
(5) G: Halogen Free and Lead Free, L: Lead Free
(6) Blank: 800mA, A: 1A
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1 of 12
QW-R102-042.H
LD2117/A
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING
(T
A
=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
DC Input Voltage
V
IN
18
V
Power Dissipation
P
D
Internally limited
W
Junction Temperature
T
J
+150
°C
Storage temperature
T
STG
-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.
RECOMMENDED OPERATING RATINGS
PARAMETER
SYMBOL
V
IN
T
J
RATINGS
15
0 ~ +125
UNIT
V
°C
Input Voltage
Operating Junction Temperature
THERMAL RESISTANCES CHARACTERISTICS
PARAMETER
Junction to Ambient
Junction to Case
SOT-223
TO-252
SOT-223
TO-252
SYMBOL
θ
JA
θ
JC
RATINGS
165
112
15
12
UNIT
°C/W
°C/W
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(T
A
=25°C, refer to the test circuits, T
J
=0 ~ 125°C, C
O
=10μF unless otherwise specified)
For LD2117/A-1.2
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Output Voltage
V
OUT
V
IN
=3.2V, I
OUT
=10mA, T
J
=25°C
1.176
V
IN
=2.7 ~ 8V
Output Voltage
V
OUT
LD2117 : I
OUT
=10~800mA
1.176
LD2117A : I
OUT
=10~1000mA
Line Regulation
V
OUT
V
IN
=2.7 ~ 8V, I
OUT
=10mA
V
IN
=2.7V
Load Regulation
V
OUT
LD2117 : I
OUT
=10~800mA
LD2117A : I
OUT
=10~1000mA
Temperature stability
V
OUT
Long Term Stability
V
OUT
1000 hrs, T
J
=125°C
Operating Input Voltage
V
IN
I
OUT
=100mA
Quiescent Current
I
Q
V
IN
10V
LD2117
800
Current Limit
I
LIMIT
V
IN
=6.2V, T
J
=25°C
LD2117A 1000
Output Noise Voltage
e
N
B=10Hz ~ 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C,
75
Supply Voltage Rejection
SVR
V
IN
=4.2V, V
RIPPLE
=1V
PP
I
OUT
=100mA
I
OUT
=500mA
Dropout Voltage
V
D
I
OUT
=800mA
I
OUT
=1A
Thermal Regulation
T
A
=25°C, 30ms Pulse
Thermal Shutdown
OTP
TYP
1.200
1.200
1
1
0.5
0.3
0.35
MAX
1.224
1.224
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
15
0.5
100
V
dB
1.05
1.15
1.18
1.22
0.01
150
1.15
1.25
1.28
1.35
0.10
V
%/W
°C
UNISONIC TECHNOLOGIES CO., LTD
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3 of 12
QW-R102-042.H
LD2117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD2117/A-1.5
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Current Limit
Output Noise Voltage
Supply Voltage Rejection
LINEAR INTEGRATED CIRCUIT
Dropout Voltage
Thermal Regulation
Thermal Shutdown
For LD2117/A-1.8
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Current Limit
Output Noise Voltage
Supply Voltage Rejection
SYMBOL
TEST CONDITIONS
V
OUT
V
IN
=3.5V, I
OUT
=10mA, T
J
=25°C
V
IN
=3 ~ 8V
V
OUT
LD2117 : I
OUT
=0~800mA
LD2117A : I
OUT
=0~1000mA
V
OUT
V
IN
=3 ~ 8V, I
OUT
=0mA
V
IN
=3V
V
OUT
LD2117 : I
OUT
=0~800mA
LD2117A : I
OUT
=0~1000mA
V
OUT
V
OUT
1000 hrs, T
J
=125°C
V
IN
I
OUT
=100mA
I
Q
V
IN
10V
LD2117
I
LIMIT
V
IN
=6.5V, T
J
=25°C
LD2117A
e
N
B=10Hz ~ 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C,
SVR
V
IN
=4.5V, V
RIPPLE
=1V
PP
I
OUT
=100mA
I
OUT
=500mA
V
D
I
OUT
=800mA
I
OUT
=1A
T
A
=25°C, 30ms Pulse
OTP
SYMBOL
TEST CONDITIONS
V
OUT
V
IN
=3.8V, I
OUT
=10mA, T
J
=25°C
V
IN
=3.3 ~ 8V
V
OUT
LD2117 : I
OUT
=0~800mA
LD2117A : I
OUT
=0~1000mA
V
OUT
V
IN
=3.3 ~ 8V, I
OUT
=0mA
V
IN
=3.3V
V
OUT
LD2117 : I
OUT
=0~800mA
LD2117A : I
OUT
=0~1000mA
V
OUT
V
OUT
1000 hrs, T
J
=125°C
V
IN
I
OUT
=100mA
I
Q
V
IN
10V
LD2117
I
LIMIT
V
IN
=6.8V, T
J
=25°C
LD2117A
e
N
B=10Hz ~ 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C,
SVR
V
IN
=5.5V, V
RIPPLE
=1V
PP
I
OUT
=100mA
I
OUT
=500mA
V
D
I
OUT
=800mA
I
OUT
=1A
T
A
=25°C, 30ms Pulse
OTP
MIN
1.470
1.470
TYP
1.500
1.500
1
1
0.5
0.3
0.35
MAX
1.530
1.530
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
15
0.5
800
1000
100
75
1.05
1.15
1.18
1.22
0.01
150
MIN
1.764
1.764
TYP
1.800
1.800
1
1
0.5
0.3
0.35
800
1000
100
75
1.05
1.15
1.18
1.22
0.01
150
1.15
1.25
1.28
1.35
0.10
15
0.5
1.15
1.25
1.28
1.35
0.10
V
dB
V
%/W
°C
UNIT
V
V
mV
mV
%
%
V
mA
mA
V
dB
MAX
1.836
1.836
6
10
Dropout Voltage
Thermal Regulation
Thermal Shutdown
V
%/W
°C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 12
QW-R102-042.H
LD2117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD2117/A-3.0
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Current Limit
Output Noise Voltage
Supply Voltage Rejection
LINEAR INTEGRATED CIRCUIT
Dropout Voltage
Thermal Regulation
Thermal Shutdown
For LD2117/A-3.3
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Current Limit
Output Noise Voltage
Supply Voltage Rejection
SYMBOL
TEST CONDITIONS
V
OUT
V
IN
=5V, I
OUT
=10mA, T
J
=25°C
V
IN
=4.5 ~ 10V
V
OUT
LD2117 : I
OUT
=0~800mA
LD2117A : I
OUT
=0~1000mA
V
OUT
V
IN
=4.5 ~ 12V, I
OUT
=0mA
V
IN
=4.5V
V
OUT
LD2117 : I
OUT
=0~800mA
LD2117A : I
OUT
=0~1000mA
V
OUT
V
OUT
1000 hrs, T
J
=125°C
V
IN
I
OUT
=100mA
I
Q
V
IN
15V
LD2117
I
LIMIT
V
IN
=8V, T
J
=25°C
LD2117A
e
N
B=10Hz ~ 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C,
SVR
V
IN
=6V, V
RIPPLE
=1V
PP
I
OUT
=100mA
I
OUT
=500mA
V
D
I
OUT
=800mA
I
OUT
=1A
T
A
=25°C, 30ms Pulse
OTP
SYMBOL
TEST CONDITIONS
V
OUT
V
IN
=5.3V, I
OUT
=10mA, T
J
=25°C
V
IN
=4.75 ~ 10V
V
OUT
LD2117 : I
OUT
=0~800mA
LD2117A : I
OUT
=0~1000mA
V
OUT
V
IN
=4.75 ~ 15V, I
OUT
=0mA
V
IN
=4.75V
V
OUT
LD2117 : I
OUT
=0~800mA
LD2117A : I
OUT
=0~1000mA
V
OUT
V
OUT
1000 hrs, T
J
=125°C
V
IN
I
OUT
=100mA
I
Q
V
IN
15V
LD2117
I
LIMIT
V
IN
=8.3V, T
J
=25°C
LD2117A
e
N
B=10Hz ~ 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C,
SVR
V
IN
=6.3V, V
RIPPLE
=1V
PP
I
OUT
=100mA
I
OUT
=500mA
V
D
I
OUT
=800mA
I
OUT
=1A
T
A
=25°C, 30ms Pulse
OTP
MIN.
2.940
2.940
TYP.
3.000
3.000
1
1
0.5
0.3
0.35
MAX.
3.060
3.060
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
15
0.5
800
1000
100
75
1.05
1.15
1.18
1.22
0.01
150
MIN.
3.234
3.234
TYP.
3.300
3.300
1
1
0.5
0.3
0.35
800
1000
100
75
1.05
1.15
1.18
1.22
0.01
150
1.15
1.25
1.28
1.35
0.10
15
0.5
1.15
1.25
1.28
1.35
0.10
V
dB
V
%/W
°C
UNIT
V
V
mV
mV
%
%
V
mA
mA
V
dB
MAX.
3.366
3.366
6
10
Dropout Voltage
Thermal Regulation
Thermal Shutdown
V
%/W
°C
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www.unisonic.com.tw
5 of 12
QW-R102-042.H
Embedded System
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