TS1117
1 Amp Low Dropout Positive Voltage Regulator
TO-220
TO-263
Low dropout voltage 1.3 V max.
TO-252
SOT-223
General Description
The TS1117 Series of high performance positive voltage regulators are designed for use in applications requiring low dropout
performance at full rated current, Additionally, the TS1117 Series provides excellent regulation over variations due to changes in line,
load and temperature. Outstanding features include low dropout performance at rated current, fast transient response. The TS1117
Series are three terminal regulators with fixed and adjustable voltage options available in popular packages
Features
a
a
a
a
Low dropout voltage 1.3 V max.
Full current rating over line and temperature
Fast transient response
2%Total output regulation over line, load and
temperature
a
a
a
a
a
Adjust pin current max 120
µ
A over temperature
Line regulation typical 0.015%.
Load regulation typical 0.05%.
Fixed / adjustable output voltage
TO-220, TO-263, TO-252& SOT-223 package
Block Diagram
INPUT
Ordering Information
DEVICE
TS1117CZ-adj / 1.8V
TS1117CZ-2.5V / 2.85V
TS1117CZ-3.3V
TS1117CZ-5.0V
TS1117CM-adj / 1.8V
TS1117CM-2.5V / 2.85V
TS1117CM-3.3V
TS1117CM-5.0V
TS1117CW-adj / 1.8V
TS1117CW-2.5V / 2.85V
TS1117CW-3.3V
TS1117CW-5.0V
TS1117CP-adj / 1.8V
TS1117CP-2.5V / 2.85V
TS1117CP-3.3V
TS1117CP-5.0V
OPERATING TEMPERATURE
(Ambient)
PACKAGE
TO-220
S.O.A
CURRENT
LIMITING
AMPLIFIER
SENSE
THERMAL OVERLOAD
OUTPUT
LIMIT
TO-263
-20 to +85+
SOT-223
VOLTAGE
REGULATION
AMPLIFIER
V
REF
ADJ/GND
TO-252
Absolute Maximum Rating
Input Voltage
Power Dissipation
Thermal Resistance Junction to Case
Thermal Resistance Junction to Ambient
Operating Junction Temperature Range
Operating Ambient Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 Sec
V
IN
P
D
JC
JA
12
Internally Limited
2.5
50
0 to +125
-20 to +85
-25 to +150
260
V
W
+
/ W
T
J
T
A
T
STG
T
LEAD
+
Electrical Characteristics
Unless otherwise specified,
Adjust V
IN
=2.75V to 12V and Adjust I
O
=10mA to 1.0A
Fixed V
IN
=4.75V to 12V and Fixed I
O
=10mA to 1.0A
(For Fixed 5.0V Output Version, V
IN
=7.5V to 12V )
TEST CONDITIONS
PARAMETER
Output Voltage
(1)
Fixed Voltage
Reference Voltage
Adj Voltage
Line Regulation
(Vin-Vout=3V)
Load Regulation
(Vin-Vout=3V)
Dropout Voltage
V
REF
=1+
Current Limit
(Vin-Vout=5V)
Quiescent Current
Fixed Model
Temperature Coefficient
Adjust Pin Current
I
ADJ
Adjust Pin Current Change
Temperature Stability
Minimum Load Current
Adjust Model
RMS Output Noise
(2)
Ripple Rejection Ratio
(3)
V
N
R
A
5V
1.0A
25
Over Temp.
60
0.003
72
V
O
dB
I
ADJ
T
S
I
O
5V
5V
500mA
Over Temp.
T
C
25
0.005
55
120
0.2
0.5
5
10
mA
5
A
/
+
Over Temp.
I
Q
5V
12
14
mA
I
CL
V
D
(1)
(1)
(1)
TEST LIMITS
UNITS
T
J(4)
25
MIN
0.99*V
O
*
0.98*V
O
*
1.238
1.225
0.015
0.035
0.05
0.2
1
1.1
1.0
1.1
1.3
A
0.3
0.4
V
1.250
TYP
V
O
MAX
1.01*V
O
*
1.02*V
O
*
1.262
1.275
0.2
V
SYMBOL
V
IN
- V
OUT
V
O
5V
I
O
10mA
Over Temp.
V
REF
5V
10mA
25
Over Temp.
REG
(LINE)
10mA
25
Over Temp.
REG
(LOAD)
25
Over Temp.
25
Over Temp.
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) Bandwidth of 10Hz to 10KHz.
(3) 120Hz input ripple(C
ADJ
for ADJ)=25 F.
(4) Over Temp. - over specified operating junction temperature range.
Typical Application Circuit
Fixed Voltage Regulator
(1)(2)
V
IN
> 4.75V
3
TS1117-3.3
1
C1
10
µ
F
2/TAB
3.3V V
OUT
+
I
Q
+
C2
10
µ
F
(1) C1 NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS
(2) C2 REQUIRED FOR STABILITY
Adjustable Voltage Regulator
(1)(2)
V
IN
> 4.75V
3
TS1117-ADJ
1
C1
10
µ
F
2/TAB
3.45V V
OUT
133
Ω
±
1%
V
REF
R1
+
I
ADJ
R2
+
C2
10
µ
F
232
Ω
±
1%
V
out
= V
ref
(1+R
2
/R
1
) + I
adj
R
2
(1) C1 NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS
(2) C2 REQUIRED FOR STABILITY
嵌入式系统
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