LP8900TLE-AAEB datasheet(4/17 Pages) TI1

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LP8900

SNVS542C – MAY 2008 – REVISED JULY 2013

www.ti.com

ELECTRICAL CHARACTERISTICS

Unless otherwise noted, VEN =1.2V, VIN = VOUT + 0.5V, or 1.8V, whichever is higher , where VOUT is the higher of VOUT1 and

VOUT2. CIN = COUT = 1µF, IOUT = 1.0mA .

Typical values and limits appearing in normal type apply for TA = 25°C. Limits appearing in boldface type apply over the full

junction temperature range for operation,

−40 to +125°C.

(1)

Limit

Symbol

Parameter

Conditions

Typ

Units

Min

Max

VIN

Input Voltage

See (2)

1.8

5.5

ΔVOUT

Output Voltage Tolerance

VIN = VOUT(NOM) + 0.5V to 5.5V

-1.0

1.0

ILOAD = 1mA

VIN = 1.8V to 5.5V

-2.25

2.25

ILOAD = 1mA, VOUT = 1.2V

Line Regulation Error

VIN = VOUT(NOM) +0.5V to 5.5V,

0.05

%/V

IOUT = 1mA

Load Regulation Error

IOUT = 1mA to 200mA

VDO

Dropout Voltage(3)

VOUT = 3.6V

IOUT = 200mA

VOUT = 2.8V

110

164

VOUT = 1.8V

185

260

ILOAD

Load Current

See (4)

200

Quiescent Current

VEN1 = 1.2V, VEN2 = 0V IOUT = 0mA

120

VEN1 = 1.2V, VEN2 = 1.2V IOUT = 0mA

200

µA

VEN1 = 1.2V, VEN2 = 1.2V IOUT = 200mA

210

VEN ≤ 0.4V

0.003

1.0

ISC

Short Circuit Current Limit

VIN = 3.6V

(5)

600

900

PSRR

Power Supply Rejection Ratio (6)

f = 1kHz, IOUT = 200mA

f = 10kHz, IOUT = 200mA

f = 100kHz, IOUT = 200mA

f = 1MHz, IOUT = 200mA

BW = 10Hz to

IOUT = 0mA

100kHz,

IOUT = 1mA

Output noise Voltage (6)

µVRMS

VIN = 4.2V, COUT =

IOUT = 200mA

1.0µF

TSHUTDOWN

Thermal Shutdown

Temperature

155

°C

Hysteresis

Enable Control Characteristics

IEN

Maximum Input Current at VEN

VEN = 0V, VIN = 5.5V

0.003

µA

Input(7)

VEN = VIN = 5.5V

VIL

Low Input Threshold

VIN = 1.8V to 5.5V

0.4

VIH

High Input Threshold

VIN = 1.8V to 5.5V

1.2

Timing\Transient Characteristics(6)

TON

Turn On Time

To 95% Level

200

µs

VOUT(nom)

TOFF

Turn Off Time

5% of VOUT(NOM),IOUT= 0mA

0.4

Line Transient Response |

δVOUT|

Trise = Tfall = 30µs

δVIN = 600mV

(pk - pk)

(1)

All limits are specified. All electrical characteristics having room-temperature limits are tested during production at TJ = 25°C or

correlated using Statistical Quality Control methods. Operation over the temperature specification is ensured by correlating the electrical

characteristics to process and temperature variations and applying statistical process control.

(2)

The minimum input voltage = VOUT(NOM) + 0.5V or 1.8V, whichever is greater.

(3)

Dropout voltage is voltage difference between input and output at which the output voltage drops to 100mV below its nominal value.

This parameter is only specified for output voltages above 1.8V.

(4)

The device maintains the regulated output voltage without a load.

(5)

Short circuit current is measured with VOUT pulled to 0V.

(6)

This electrical specification is ensured by design.

(7)

Enable Pin has an internal 3-M

Ω typical, resistor connected to GND.

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