TC1014 datasheet(2/10 Pages) TELCOM

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TC1014

50mA CMOS LDO WITH SHUTDOWN

AND REFERENCE BYPASS

PRELIMINARY INFORMATION

TC1014-01-6/5/97

ABSOLUTE MAXIMUM RATINGS*

Input Voltage ................................................................. 7V

Output Voltage .................................. (– 0.3) to (VIN + 0.3)

Power Dissipation .................... Internally Limited (Note 7)

Operating Temperature .................... – 40

°C < TJ < 125°C

Storage Temperature ............................ – 65

°C to +150°C

Maximum Voltage On Any Pin .......... VIN + 0.3V to – 0.3V

*Stresses beyond those listed under "Absolute Maximum Ratings" may

cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond

those indicated in the operational sections of the specifications is not

implied. Exposure to absolute maximum rating conditions for extended

periods may affect device reliability.

ELECTRICAL CHARACTERISTICS: VIN = VOUT + 1V, IL = 100µA, CL = 3.3µF, SHDN > VIH, TA = 25

°C, unless otherwise noted.

Boldface type specifications apply for junction temperatures of – 40

°C to +125°C.

Symbol

Parameter

Test Conditions

Min

Typ

Max

Units

VIN

Input Operating Voltage

—

6.5

IOUTMAX

Maximum Output Current

——

VOUT

Output Voltage

Note 1

VR – 2.5%

VR ±0.5%

VR + 2.5%

TCVOUT

VOUT Temperature Coefficient

Note 2

—

ppm/

°C

∆VOUT/∆VIN

Line Regulation

(VR + 1V) < VIN < 6V

—

0.01

—

∆VOUT/VOUT

Load Regulation

IL = 1.0mA to IOUTMAX

—

0.5

—

(Note 3)

VIN – VOUT

Dropout Voltage (Note 4)

IL = 100µA—

—

IL = 20mA

IL = 50mA

(Note 4)

IGND

Ground Pin Current

IL = IOUTMAX, (Note 5)

——

µA

IIN

Supply Current

SHDN = VIH, IL = 0

—

µA

IINSD

Shutdown Supply Current

SHDN = 0V

—

0.05

µA

PSRR

Power Supply Rejection Ratio

FRE ≤ 1kHz

—

IOUTSC

Output Short Circuit Current

VOUT = 0V

—

200

400

∆VOUT/∆PD

Thermal Regulation

Note 6

—

0.04

—

%/W

Output Noise

IL = IOUTMAX

—

260

—

nV/

√Hz

470pF from Bypass to GND

SHDN Input

VIH

SHDN Input High Threshold

VIN = 2.5V to 6.5V

—

%VIN

VIL

SHDN Input Low Threshold

VIN = 2.5V to 6.5V

—

%VIN

NOTES: 1. VR is the regulator output voltage setting. VR = 2.5V, 2.7V, 3.0V, 3.3V, 5.0V.

2. TCVOUT = (VOUTMAX – VOUTMIN) x 10

VOUT x ∆T

3. Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested over a load

range from 1.0mA to the maximum specified output current. Changes in output voltage due to heating effects are covered by the

thermal regulation specification.

4. Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value at a 1V

differential.

5. Ground pin current is the regulator pass transistor gate current. The total current drawn from the input supply is the sum of the load

current, ground current and supply current (i.e. IIN = ISUPPLY + IGND + ILOAD).

6. Thermal Regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load

or line regulation effects. Specifications are for a current pulse equal to ILMAX at VIN = 6V for T = 10msec.

7. The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the

thermal resistance from junction-to-air (i.e. TA, TJ, θJA). Exceeding the maximum allowable power dissipation causes the device to

initiate thermal shutdown. Please see

Thermal Considerations section of this data sheet for more details.

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