REG103-25 Datasheet, PDF (3/26 Pages) Texas Instruments – 500mA Low-Dropout Regulator

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.
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
V_OUT
V_REF
I_ADJ
dV_OUT/dT
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
V_DROP
VOLTAGE NOISE
f = 10Hz to 100kHz
V_n
Without C_NR (all models)
With C_NR (all fixed voltage models)
OUTPUT CURRENT
Current Limit⁽⁴⁾
I_CL
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
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
I_GND
ENABLE Pin LOW
INPUT VOLTAGE
V_IN
Operating Input Voltage Range⁽⁷⁾
Specified Input Voltage Range
T_J = –40°C to +85°C
TEMPERATURE RANGE
Specified Range
T_J
Operating Range
Storage Range
Thermal Resistance
DDPAK-5 Surface-Mount
θ_JC
SO-8 Surface-Mount
θ_JA
SOT223-5 Surface-Mount
θ_JC
CONDITION
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
C_NR = 0, C_OUT = 0
C_NR = 0.01µF, C_OUT = 10µF
V_ENABLE = 2V to V_IN, V_IN = 2.1V to 6.5⁽⁵⁾
V_ENABLE = 0V to 0.5V
V_IN = V_ERROR = V_OUT + 1V
Sinking 500µA
I_OUT = 10mA
I_OUT = 500mA
V_ENABLE ≤ 0.5V
V_IN > 2.7V
V_IN > 2.9V
Junction-to-Case
Junction-to-Ambient
Junction-to-Case
REG103GA, UA, FA
MIN
TYP
MAX
2.5
2.7
3.0
3.3
5
V_REF
5.5
1.295
0.2
1
±0.5
±2
±2.8
70
±0.5
±2.5
±3.5
3
25
115
200
160
250
230
280
30µVrms/V • V_OUT
10µVrms/V • V_OUT
550
700
950
500
1000
65
2
V_IN
–0.2
0.5
1
100
2
100
50
1.5
0.1
10
0.2
0.4
150
130
0.5
1
0.5
2.1
V_OUT + 0.7
V_OUT + 0.9
–40
–55
–65
4
150
15
0.7
1.3
15
15
15
+85
+125
+150
UNITS
V
V
V
V
V
V
V
µA
%
%
ppm/°C
%
%
mV
mV
mV
mV
mV
µVrms
µVrms
mA
mA
dB
V
V
nA
nA
µs
ms
µA
V
°C
°C
mA
mA
µA
V
V
V
°C
°C
°C
°C/W
°C/W
°C/W
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_IN to
V_OUT is typically less than 1Ω at T_J = +25°C. See typical characteristic.
REG103
3
SBVS010D