) ................................ –55°C to +125°C
Storage Temperature Range (T
A
) ................................... –65°C to +150°C
Lead Temperature (soldering, 3s, SOT23-5, and SO-8) ..................... +240°C
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 Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
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
REG101xx-
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.
(2) Output voltages from 2.5V to 5.1V in 50mV increments are available; minimum order quantities apply. Contact factory for details and availability.
V
OUT(2)
PIN CONFIGURATIONS
Top View
SO-8
V
OUT(2)
V
OUT(2)
NR/Adjust
(1)
GND
1
2
3
4
(U Package)
8
7
6
5
V
IN(3)
V
IN(3)
NC
Enable
V
IN
GND
Enable
1
2
3
(N Package)
4
NR/Adjust
(1)
SOT23-5
5
V
OUT
NOTE: (1) For REG101A-A: voltage setting resistor pin. All other models: noise reduction capacitor pin.
(2) Both pin 1 and pin 2 must be connected.
(3) Both pin 7 and pin 8 must be connected.
2
REG101
SBVS026D
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
= 2.5V for REG101-A), V
ENABLE
= 1.8V, I
OUT
= 2mA, C
NR
= 0.01µF, and C
OUT
= 0.1µF
(1)
, unless otherwise noted.
REG101NA
REG101UA
PARAMETER
OUTPUT VOLTAGE
Output Voltage
REG101-2.5
REG101-2.8
REG101-2.85
REG101-3.0
REG101-3.3
REG101-5
REG101-A
Reference Voltage
Adjust Pin Current
Accuracy
Over Temperature
vs Temperature
Includes Line and Load
Over Temperature
DC DROPOUT VOLTAGE
(2)
For all models
Over Temperature
VOLTAGE NOISE
Without C
NR
With C
NR
(all fixed voltage models)
OUTPUT CURRENT
Current Limit
(3)
Over Temperature
Short-Circuit Current
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 Time
THERMAL SHUTDOWN
Junction Temperature
Shutdown
Reset from Shutdown
GROUND PIN CURRENT
Ground Pin Current
Enable Pin Low
INPUT VOLTAGE
Operating Input Voltage Range
(5)
Specified Input Voltage Range
Over Temperature
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance
SOT23-5 Surface Mount
SO-8 Surface Mount
V
IN
V
IN
> 1.8V
V
IN
> 1.8V
T
J
T
J
T
A
1.8
V
OUT
+ 0.4
V
OUT
+ 0.6
–40
–55
–65
Junction-to-Ambient
Junction-to-Ambient
200
150
10
10
10
+85
+125
+150
V
V
V
°C
°C
°C
°C/W
°C/W
I
GND
I
OUT
= 2mA
I
OUT
= 100mA
V
ENABLE
≤
0.5V
V
ENABLE
I
ENABLE
V
ENABLE
= 1.8V to V
IN
, V
IN
= 1.8V to 6.5
(4)
V
ENABLE
= 0V to 0.5V
C
OUT
= 1.0µF, R
LOAD
= 33Ω
C
OUT
= 1.0µF, R
LOAD
= 33Ω
V
OUT
2.5
2.8
2.85
3.0
3.3
5
2.5
V
REF
I
ADJ
1.267
0.2
±0.5
50
±0.8
4
60
5.5
1
±1.5
±
2.2
±2.0
±
2.7
10
100
130
V
V
V
V
V
V
V
V
µA
%
%
ppm/°C
%
%
mV
mV
mV
µVrms
µVrms
220
240
mA
mA
mA
dB
V
IN
0.5
100
100
V
V
nA
nA
µs
ms
CONDITION
MIN
TYP
MAX
UNITS
dV
OUT
/dT
I
OUT
= 2mA to 100mA, V
IN
= (V
OUT
+ 0.4V) to 10V
V
IN
= (V
OUT
+ 0.6V) to 10V
V
DROP
I
OUT
= 2mA
I
OUT
= 100mA
I
OUT
= 100mA
f = 10Hz to 100kHz
C
NR
= 0, C
OUT
= 0
C
NR
= 0.01µF, C
OUT
= 10µF
130
110
V
n
23µVrms/V • V
OUT
7µVrms/V • V
OUT
170
60
I
CL
I
SC
I
OUT
= 100mA
65
1.8
–0.2
1
2
200
1.5
160
140
400
500
0.01
500
650
0.2
°C
°C
µA
µA
µA
θ
JA
θ
JA
NOTES: (1) The REG101 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) Current limit is the output current that produces a 10% change in output voltage from V
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