Datasheet

REG101
3
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 CONDITION MIN TYP MAX UNITS
OUTPUT VOLTAGE
Output Voltage V
OUT
REG101-2.5 2.5 V
REG101-2.8 2.8 V
REG101-2.85 2.85 V
REG101-3.0 3.0 V
REG101-3.3 3.3 V
REG101-5 5V
REG101-A 2.5 5.5 V
Reference Voltage V
REF
1.267 V
Adjust Pin Current I
ADJ
0.2 1 µA
Accuracy ±0.5 ±1.5 %
Over Temperature
±2.2 %
vs Temperature dV
OUT
/dT 50 ppm/°C
Includes Line and Load I
OUT
= 2mA to 100mA, V
IN
= (V
OUT
+ 0.4V) to 10V ±0.8 ±2.0 %
Over Temperature V
IN
= (V
OUT
+ 0.6V) to 10V ±2.7 %
DC DROPOUT VOLTAGE
(2)
V
DROP
I
OUT
= 2mA 4 10 mV
For all models I
OUT
= 100mA 60 100 mV
Over Temperature I
OUT
= 100mA 130 mV
VOLTAGE NOISE V
n
f = 10Hz to 100kHz
Without C
NR
C
NR
= 0, C
OUT
= 0 23µVrms/V • V
OUT
µVrms
With C
NR
(all fixed voltage models) C
NR
= 0.01µF, C
OUT
= 10µF7µVrms/V • V
OUT
µVrms
OUTPUT CURRENT
Current Limit
(3)
I
CL
130 170 220 mA
Over Temperature 110 240 mA
Short-Circuit Current I
SC
60 mA
RIPPLE REJECTION
f = 120Hz I
OUT
= 100mA 65 dB
ENABLE CONTROL
V
ENABLE
High (output enabled) V
ENABLE
1.8 V
IN
V
V
ENABLE
Low (output disabled) –0.2 0.5 V
I
ENABLE
High (output enabled) I
ENABLE
V
ENABLE
= 1.8V to V
IN
, V
IN
= 1.8V to 6.5
(4)
1 100 nA
I
ENABLE
Low (output disabled) V
ENABLE
= 0V to 0.5V 2 100 nA
Output Disable Time C
OUT
= 1.0µF, R
LOAD
= 33Ω 200 µs
Output Enable Time C
OUT
= 1.0µF, R
LOAD
= 33Ω 1.5 ms
THERMAL SHUTDOWN
Junction Temperature
Shutdown 160 °C
Reset from Shutdown 140 °C
GROUND PIN CURRENT
Ground Pin Current I
GND
I
OUT
= 2mA 400 500 µA
I
OUT
= 100mA 500 650 µA
Enable Pin Low V
ENABLE
≤ 0.5V 0.01 0.2 µA
INPUT VOLTAGE V
IN
Operating Input Voltage Range
(5)
1.8 10 V
Specified Input Voltage Range V
IN
> 1.8V V
OUT
+ 0.4 10 V
Over Temperature V
IN
> 1.8V V
OUT
+ 0.6 10 V
TEMPERATURE RANGE
Specified Range T
J
–40 +85 °C
Operating Range T
J
–55 +125 °C
Storage Range T
A
–65 +150 °C
Thermal Resistance
SOT23-5 Surface Mount θ
JA
Junction-to-Ambient 200 °C/W
SO-8 Surface Mount
θ
JA
Junction-to-Ambient 150 °C/W
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
IN
= V
OUT
+ 1V and I
OUT
= 2mA.
(4) For V
ENABLE
> 6.5V, see typical characteristic “I
ENABLE
vs V
ENABLE
”.
(5) The REG101 no longer regulates when V
IN
< V
OUT
+ V
DROP (MAX)
. In drop-out, the impedance from V
IN
to V
OUT
is typically less than 1Ω at T
J
= +25°C.