NOTE: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be handled
with appropriate precautions. Failure to observe proper han-
dling and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.
PACKAGE/ORDERING INFORMATION
(1)
PRODUCT
REG103xx-
yyyy/zzz
XX
is package designator.
YYYY
is typical output voltage (5 = 5.0V, 2.85 = 2.85V, A = Adjustable).
ZZZ
is package quantity.
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com.
V
OUT
PIN CONFIGURATIONS
Top View
DDPAK-5
Tab is GND
V
OUT
V
OUT
1 2 3 4 5
NR/Adjust
(1)
GND
V
O
GND
V
IN
1
2
3
4
8
7
6
5
V
IN
V
IN
ERROR
1
ENABLE
V
IN
V
OUT
(U Package)
NOTE: (1) For REG103A-A: voltage setting resistor pin.
All other models: noise reduction capacitor pin.
GND
ENABLE
NR/Adjust
(1)
2
3
4
5
Tab is GND
SO-8
SOT223-5
NR/Adjust
(1)
ENABLE
(F Package)
(G Package)
2
REG103
SBVS010D
ELECTRICAL CHARACTERISTICS
Boldface
limits apply over the specified temperature range,
T
J
= –40
°
C to +85
°
C.
At T
J
= +25°C, V
IN
= V
OUT
+ 1V (V
OUT
= 3.0V for REG103-A), V
ENABLE
= 2V, I
OUT
= 10mA, C
NR
= 0.01µF, and C
OUT
= 0.1µF
(1)
, unless otherwise noted.
REG103GA, UA, FA
PARAMETER
OUTPUT VOLTAGE
Output Voltage Range
REG103-2.5
REG103-2.7
REG103-3.0
REG103-3.3
REG103-5
REG103-A
Reference Voltage
Adjust Pin Current
Accuracy
T
J
= –40
°
C to +85
°
C
vs Temperature
vs Line and Load
T
J
= –40
°
C to +85
°
C
DC DROPOUT VOLTAGE
(2, 3)
For all models except 5V
For 5V model
For all models except 5V
T
J
= –40
°
C to +85
°
C
For 5V models
T
J
= –40
°
C to +85
°
C
VOLTAGE NOISE
f = 10Hz to 100kHz
Without C
NR
(all models)
With C
NR
(all fixed voltage models)
OUTPUT CURRENT
Current Limit
(4)
T
J
= –40
°
C to +85
°
C
RIPPLE REJECTION
f = 120Hz
ENABLE CONTROL
V
ENABLE
HIGH (output enabled)
V
ENABLE
LOW (output disabled)
I
ENABLE
HIGH (output enabled)
I
ENABLE
LOW (output disabled)
Output Disable Time
Output Enable Soft Start Time
V
ENABLE
I
ENABLE
V
ENABLE
= 2V to V
IN
, V
IN
= 2.1V to 6.5
(5)
V
ENABLE
= 0V to 0.5V
2
–0.2
1
2
50
1.5
0.1
0.2
V
OUT
2.5
2.7
3.0
3.3
5
V
REF
V
REF
I
ADJ
dV
OUT
/dT
T
J
= –40
°
C to +85
°
C
I
OUT
= 10mA to 500mA, V
IN
= (V
OUT
+ 0.7V) to 15V
V
IN
= (V
OUT
+ 0.9V) to 15V
I
OUT
= 10mA
I
OUT
= 500mA
I
OUT
= 500mA
I
OUT
= 500mA
I
OUT
= 500mA
1.295
0.2
±0.5
70
±0.5
3
115
160
5.5
1
±2
±
2.8
V
V
V
V
V
V
V
µA
%
%
ppm/°C
%
%
mV
mV
mV
mV
mV
CONDITION
MIN
TYP
MAX
UNITS
±
3.5
25
200
250
230
280
±2.5
V
DROP
V
n
C
NR
= 0, C
OUT
= 0
C
NR
= 0.01µF, C
OUT
= 10µF
I
CL
550
500
30µVrms/V • V
OUT
10µVrms/V • V
OUT
700
950
1000
µVrms
µVrms
mA
mA
dB
V
IN
0.5
100
100
V
V
nA
nA
µs
ms
µA
V
65
ERROR FLAG
(6)
Current, Logic HIGH (open drain)—Normal Operation
Voltage, Logic LOW—On Error
THERMAL SHUTDOWN
Junction Temperature
Shutdown
Reset from Shutdown
GROUND PIN CURRENT
Ground Pin Current
ENABLE Pin LOW
INPUT VOLTAGE
Operating Input Voltage Range
(7)
Specified Input Voltage Range
T
J
= –40
°
C to +85
°
C
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance
DDPAK-5 Surface-Mount
SO-8 Surface-Mount
SOT223-5 Surface-Mount
V
IN
I
GND
V
IN
= V
ERROR
= V
OUT
+ 1V
Sinking 500µA
10
0.4
150
130
I
OUT
= 10mA
I
OUT
= 500mA
V
ENABLE
≤
0.5V
2.1
V
OUT
+ 0.7
V
OUT
+ 0.9
–40
–55
–65
Junction-to-Case
Junction-to-Ambient
Junction-to-Case
4
150
15
0.5
1
0.5
0.7
1.3
°C
°C
mA
mA
µA
V
V
V
°C
°C
°C
°C/W
°C/W
°C/W
V
IN
> 2.7V
V
IN
> 2.9V
T
J
15
15
15
+85
+125
+150
θ
JC
θ
JA
θ
JC
NOTES: (1) The REG103 does not require a minimum output capacitor for stability. However, transient response can be improved with proper capacitor selection.
(2) Dropout voltage is defined as the input voltage minus the output voltage that produces a 2% change in the output voltage from the value at V
IN
= V
OUT
+ 1V at
fixed load.
(3) Not applicable for V
OUT
less than 2.7V.
(4) Current limit is the output current that produces a 10% change in output voltage from V
IN
= V
OUT
+ 1V and I
OUT
= 10mA.
(5) For V
IN
> 6.5V, see typical characteristic
V
ENABLE
vs I
ENABLE
.
(6) Logic low indicates out-of-regulation condition by approximately 10%, or thermal shutdown.
(7) The REG103 no longer regulates when V
IN
< V
OUT
+ V
DROP (MAX)
. In drop-out or when the input voltage is between 2.7V and 2.1V, the impedance from V
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