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TS317LCS RLG

P1-P3P4-P6P7-P9P10-P10
TS317L
3-Terminal Adjustable Positive Voltage Regulator
Document Number:
DS_P0000264
1
Version: D15
SOP
-
8
General Description
The TS317L is adjustable 3-terminal positive voltage regulator capable of supplying in excess of 100mA over an
output voltage range of 1.25 V to 37 V. This voltage regulator is exceptionally easy to use and require only two
external resistors to set the output voltage. Further, it employs internal current limiting, thermal shutdown and safe
area compensation, making it essentially blow-out proof. Besides replacing fixed regulators, the TS317L is useful in a
wide variety of other applications. Since the regulator is “floating “ and sees only the input-to-output differential
voltage, supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not
exceeded. Also, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by
connecting a fixed resistor between the adjustment and output, the TS317L can be used as a precision current
regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which
programs the output to 1.25V where most loads draw little current.
Features
● Output Voltage Range 1.25 to 37V
● Output current in Excess of 100mA
● Eliminates Stocking Many Fixed Voltages
● Internal Thermal Overload Protection
● Current Limit Constant with Temperature
● Output transistor safe-area compensation
●
Output voltage offered in 4% tolerance
●
Floating Operation for High Voltage Applications
Standard Application Circuit
Ordering Information
Part No. Package
Packing
TS317LCS RLG
SOP-8 2.5kpcs / 13” Reel
Note: “G” denotes for Halogen Free
Absolute Maximum Ratings
(Ta = 25°C unless otherwise noted)
Parameter Symbol Limit Unit
Input Voltage V
IN
40 V
Power Dissipation P
D
Internal Limited W
Operating Junction Temperature T
J
-20~+125 °C
Storage Temperature Range T
STG
-65~+150 °C
Thermal Resistance - Junction to Ambient R
ӨJA
165 °C/W
Cin is required if regulator is located an appreciable distance
from power supply filter. Co is not needed for stability,
however, it does improve transient response.
Vout = 1.25 V(1 + R2
/ R1 ) + I
Adj
R2
Since I
Adj
is controlled to less than 100µA, the error
associated with this term is negligible in most applications
Pin
:
1. Input 8. N/C
2. Output
7. Output
3. Output 6. Output
4. Adjustable 5. N/C
TS317L
3-Terminal Adjustable Positive Voltage Regulator
Document Number:
DS_P0000264
2
Version: D15
Electrical Characteristics
(V
I
-V
O
= 5.0 V, Io=40mA; T
J
=T
LOW
to T
HIGH
see [Note 1]; P
MAX
per [Note 2]; unless otherwise specified.)
Parameter Fig
Symbol Min. Typ. Max. Unit
Reference voltage, 3V ≤ V
I
-V
O
≤ 40V
10mA ≤ Io ≤ Imax, P
D
≤ P
MAX
,
3 V
REF
1.20 1.25 1.30 V
Line regulation (Note 3)
T
A
= 25
o
C, 3V≤ V
I
-V
O
≤40V
1 REG
LINE
-- 0.01 0.07 %/V
Load regulation T
A
= 25
o
C, 10mA ≤ I
O
≤ Imax (Note 3)
2 REG
LOAD
--
--
5.0
0.1
25
0.5
mV
%V
Thermal regulation, T
A
= 25
o
C (Note 6), 20mS Pulse REG
THERMAL
-- 0.03 0.07 %Vo/W
Adjustment pin current 3 I
ADJ
-- 50 100 µA
Adjustment pin current change, 3V ≤ V
I
- V
O
≤ 40V
10mA ≤ I
O
≤ I
MAX
, P
D
≤ P
MAX
,
1.2
∆I
ADJ
-- 0.2 5.0 µA
Maximum output current 3 I
MAX
100
--
200
20
--
--
mA
Temperature stability (T
LOW
≤ T
J
≤ T
HIGH
) 3 T
S
-- 1 -- % Vo
Minimum load current to maintain regulation
(V
I
- V
O
= 40 V)
3 IL
MIN
-- 3.5 10 mA
RMS Noise, % of V
O,
T
A
=25
o
C, 10Hz
≤ f ≤ 10KHz N -- 0.003
-- % Vo
Ripple Rejection, Vo =10V, f =120Hz (Note 4)
Without C
ADJ
C
ADJ
= 10µF
4 PSRR
--
66
65
80
--
--
dB
Long-term stability (Note 5), T
J
= T
HIGH
T
A
=25
o
C for endpoint measurements,1000hrs
3 S -- 0.3 1.0 %
Notes:
1. T
LOW
to T
HIGH
= -20°C to +125°C
2. P
MAX
, is internally limited
3. Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must
be taken into account separately. Pulse testing with low duty cycle is used.
4. C
ADJ
, when used, is connected between the adjustment pin and ground.
5. Since Long-Term Stability cannot be measured on each device before shipment, this specification is an engineering
estimate of average stability from lot to lot.
6. Power dissipation within an IC voltage regulator produces a temperature gradient on the die, affecting individual IC
components on the die. These effects can be minimized by proper integrated circuit design and layout techniques.
Thermal Regulation in the effect of these temperature gradients on the output voltage and is expressed in the
percentage of output change per watt of power change in a specified time.
TS317L
3-Terminal Adjustable Positive Voltage Regulator
Document Number:
DS_P0000264
3
Version: D15
Functional Block Diagram
Test Circuit
Figure 1. Line Regulation Test Circuit Figure 2. Load Regulation and
∆Iadj/Load Test Circuit
Figure 3. Standard Test Circuit Figure 4. Ripple Rejection Test Circuit
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TS317LCS RLG

Mfr. #:
Buy TS317LCS RLG
Manufacturer:
Taiwan Semiconductor
Description:
Linear Voltage Regulators Adjustable
Lifecycle:
New from this manufacturer.
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