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 degradation
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
REG104xx-
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
Tab is Gnd
SOT223-5
1 2 3 4 5
1
V
O
Gnd
V
IN
Enable
2
3
4
5
NR/Adjust
(1)
V
IN
V
OUT
Gnd
Enable
NR/Adjust
(1)
(KTT Package)
(DCQ Package)
NOTE: (1) For REG104A-A: voltage setting resistor pin.
All other models: noise reduction capacitor pin.
2
REG104
SBVS025G
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 REG104-A), V
ENABLE
= 2V, I
OUT
= 10mA, C
NR
= 0.01µF, and C
OUT
= 0.1µF
(1)
, unless otherwise noted.
REG104GA
REG104FA
PARAMETER
OUTPUT VOLTAGE
Output Voltage Range
REG104-2.5
REG104-2.7
REG104-3.0
REG104-3.3
REG104-5
REG104-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 Softstart Time
THERMAL SHUTDOWN
Junction Temperature
Shutdown
Reset from Shutdown
GROUND PIN CURRENT
Ground Pin Current
Enable Pin Low
INPUT VOLTAGE
Operating Input Voltage Range
(6)
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
SOT223-5 Surface Mount
V
IN
V
IN
> 2.7V
V
IN
> 2.9V
T
J
2.1
V
OUT
+ 0.7
V
OUT
+ 0.9
–40
–55
–65
Junction-to-Case
Junction-to-Case
4
15
15
15
15
+85
+125
+150
V
V
V
°C
°C
°C
°C/W
°C/W
I
GND
I
OUT
= 10mA
I
OUT
= 1A
V
ENABLE
≤
0.5V
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
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 1A, V
IN
= (V
OUT
+ 0.7V) to 15V
V
IN
= (V
OUT
+ 0.9V) to 15V
I
OUT
I
OUT
I
OUT
I
OUT
=
=
=
=
10mA
1A
1A
1A
1.295
0.2
±0.5
70
±0.5
3
230
320
5.5
1
±2
±
3.0
V
V
V
V
V
V
V
µA
%
%
ppm/°C
%
%
mV
mV
mV
mV
mV
CONDITION
MIN
TYP
MAX
UNITS
±
3.5
25
400
500
480
580
±2.5
V
DROP
I
OUT
= 1A
V
n
C
NR
= 0, C
OUT
= 0
C
NR
= 0.01µF, C
OUT
= 10µF
I
CL
1.2
1.0
35µV
RMS
/V • V
OUT
10µV
RMS
/V • V
OUT
1.7
2.1
2.2
µV
RMS
µV
RMS
A
A
dB
V
IN
0.5
100
100
V
V
nA
nA
µs
ms
65
150
130
0.5
1.7
0.5
0.7
1.8
°C
°C
mA
mA
µA
θ
JC
θ
JC
NOTES: (1) The REG104 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 15% 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) The REG104 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
DSP 与 ARM 处理器
