ELECTRICAL CHARACTERISTICS
Boldface limits apply over the specified temperature range, TJ = –40°C to +85°C.
At TJ = +25°C, VIN = VOUT + 1V (VOUT = 3.0V for REG103-A), VENABLE = 2V, IOUT = 10mA, CNR = 0.01µF, and COUT = 0.1µF(1), unless otherwise noted.
REG103GA, UA, FA
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OUTPUT VOLTAGE
Output Voltage Range
REG103-2.5
REG103-2.7
REG103-3.0
REG103-3.3
REG103-5
REG103-A
VOUT
2.5
2.7
3.0
3.3
5
V
V
V
V
V
V
VREF
5.5
Reference Voltage
Adjust Pin Current
Accuracy
VREF
IADJ
1.295
0.2
±0.5
V
µA
%
1
±2
TJ = –40°C to +85°C
vs Temperature
vs Line and Load
TJ = –40°C to +85°C
±2.8
%
ppm/°C
%
dVOUT/dT
TJ = –40°C to +85°C
IOUT = 10mA to 500mA, VIN = (VOUT + 0.7V) to 15V
VIN = (VOUT + 0.9V) to 15V
70
±0.5
±2.5
±3.5
%
DC DROPOUT VOLTAGE(2, 3)
For all models except 5V
For 5V model
For all models except 5V
TJ = –40°C to +85°C
For 5V models
VDROP
IOUT = 10mA
IOUT = 500mA
IOUT = 500mA
IOUT = 500mA
3
115
160
25
mV
mV
mV
mV
200
250
230
IOUT = 500mA
280
mV
TJ = –40°C to +85°C
VOLTAGE NOISE
f = 10Hz to 100kHz
Vn
Without CNR (all models)
With CNR (all fixed voltage models)
CNR = 0, COUT = 0
CNR = 0.01µF, COUT = 10µF
30µVrms/V • VOUT
10µVrms/V • VOUT
µVrms
µVrms
OUTPUT CURRENT
Current Limit(4)
TJ = –40°C to +85°C
ICL
550
500
700
65
950
1000
mA
mA
RIPPLE REJECTION
f = 120Hz
dB
ENABLE CONTROL
V
ENABLE HIGH (output enabled)
VENABLE
IENABLE
2
–0.2
VIN
0.5
100
100
V
V
nA
nA
µs
ms
VENABLE LOW (output disabled)
IENABLE HIGH (output enabled)
VENABLE = 2V to VIN, VIN = 2.1V to 6.5(5)
VENABLE = 0V to 0.5V
1
2
50
1.5
IENABLE LOW (output disabled)
Output Disable Time
Output Enable Soft Start Time
ERROR FLAG(6)
Current, Logic HIGH (open drain)—Normal Operation
Voltage, Logic LOW—On Error
VIN = VERROR = VOUT + 1V
0.1
0.2
10
0.4
µA
V
Sinking 500µA
THERMAL SHUTDOWN
Junction Temperature
Shutdown
150
130
°C
°C
Reset from Shutdown
GROUND PIN CURRENT
Ground Pin Current
IGND
IOUT = 10mA
0.5
1
0.5
0.7
1.3
mA
mA
µA
IOUT = 500mA
ENABLE Pin LOW
V
ENABLE ≤ 0.5V
INPUT VOLTAGE
VIN
Operating Input Voltage Range(7)
Specified Input Voltage Range
TJ = –40°C to +85°C
2.1
VOUT + 0.7
VOUT + 0.9
15
15
15
V
V
V
VIN > 2.7V
VIN > 2.9V
TEMPERATURE RANGE
Specified Range
Operating Range
TJ
–40
–55
–65
+85
+125
+150
°C
°C
°C
Storage Range
Thermal Resistance
DDPAK-5 Surface-Mount
SO-8 Surface-Mount
SOT223-5 Surface-Mount
θJC
θJA
θJC
Junction-to-Case
Junction-to-Ambient
Junction-to-Case
4
150
15
°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 VIN = VOUT + 1V at
fixed load.
(3) Not applicable for VOUT less than 2.7V.
(4) Current limit is the output current that produces a 10% change in output voltage from VIN = VOUT + 1V and IOUT = 10mA.
(5) For VIN > 6.5V, see typical characteristic VENABLE vs IENABLE
.
(6) Logic low indicates out-of-regulation condition by approximately 10%, or thermal shutdown.
(7) The REG103 no longer regulates when VIN < VOUT + VDROP (MAX). In drop-out or when the input voltage is between 2.7V and 2.1V, the impedance from VIN to
VOUT is typically less than 1Ω at TJ = +25°C. See typical characteristic.
REG103
SBVS010D
3
TI [ TEXAS INSTRUMENTS ]
