REG101 datasheet(3/13 Pages) TI

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REG101

SBVS026C

ELECTRICAL CHARACTERISTICS

Boldface limits apply over the specified temperature range, TJ = –40°C to +85°C.

At TJ = +25°C, VIN = VOUT + 1V (VOUT = 2.5V for REG101-A), VENABLE = 1.8V, IOUT = 2mA, CNR = 0.01µF, and COUT = 0.1µF(1), unless otherwise noted.

REG101NA

REG101UA

PARAMETER

CONDITION

MIN

TYP

MAX

UNITS

OUTPUT VOLTAGE

Output Voltage

VOUT

REG101-2.5

2.5

REG101-2.8

2.8

REG101-2.85

2.85

REG101-3.0

3.0

REG101-3.3

3.3

REG101-5

REG101-A

2.5

5.5

Reference Voltage

VREF

1.267

Adjust Pin Current

IADJ

0.2

µA

Accuracy

±0.5

±1.5

Over Temperature

±2.2

vs Temperature

dVOUT/dT

ppm/

°C

Includes Line and Load

IOUT = 2mA to 100mA, VIN = (VOUT + 0.4V) to 10V

±0.8

±2.0

Over Temperature

VIN = (VOUT + 0.6V) to 10V

±2.7

DC DROPOUT VOLTAGE(2)

VDROP

IOUT = 2mA

For all models

IOUT = 100mA

100

Over Temperature

IOUT = 100mA

130

VOLTAGE NOISE

f = 10Hz to 100kHz

Without CNR

CNR = 0, COUT = 0

µVrms/V • V

OUT

µVrms

With CNR (all fixed voltage models)

CNR = 0.01µF, COUT = 10µF7µVrms/V • VOUT

µVrms

OUTPUT CURRENT

Current Limit(3)

ICL

130

170

220

Over Temperature

110

240

Short-Circuit Current

ISC

RIPPLE REJECTION

f = 120Hz

IOUT = 100mA

ENABLE CONTROL

VENABLE High (output enabled)

VENABLE

1.8

VIN

VENABLE Low (output disabled)

–0.2

0.5

IENABLE High (output enabled)

IENABLE

VENABLE = 1.8V to VIN, VIN = 1.8V to 6.5(4)

100

IENABLE Low (output disabled)

VENABLE = 0V to 0.5V

100

Output Disable Time

COUT = 1.0µF, RLOAD = 33Ω

200

µs

Output Enable Time

COUT = 1.0µF, RLOAD = 33Ω

1.5

THERMAL SHUTDOWN

Junction Temperature

Shutdown

160

°C

Reset from Shutdown

140

°C

GROUND PIN CURRENT

Ground Pin Current

IGND

IOUT = 2mA

400

500

µA

IOUT = 100mA

500

650

µA

Enable Pin Low

VENABLE ≤ 0.5V

0.01

0.2

µA

INPUT VOLTAGE

VIN

Operating Input Voltage Range(5)

1.8

Specified Input Voltage Range

VIN > 1.8V

VOUT + 0.4

Over Temperature

VIN > 1.8V

VOUT + 0.6

TEMPERATURE RANGE

Specified Range

–40

+85

°C

Operating Range

–55

+125

°C

Storage Range

–65

+150

°C

Thermal Resistance

SOT23-5 Surface Mount

Junction-to-Ambient

200

°C/W

SO-8 Surface Mount

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 VIN = VOUT + 1V at fixed load. (3) Current limit

is the output current that produces a 10% change in output voltage from VIN = VOUT + 1V and IOUT = 2mA. (4) For VENABLE > 6.5V, see typical characteristic “IENABLE vs VENABLE”.

(5) The REG101 no longer regulates when VIN < VOUT + VDROP (MAX). In drop-out, the impedance from VIN to VOUT is typically less than 1Ω at TJ = +25°C.

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