LR1107/E

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

5 of 6

www.unisonic.com.tw

QW-R102-033.H

ELECTRICAL CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

(Note 3)

MAX

UNIT

ERROR FLAG COMPARATOR (for LR1107E)

ERROR Flag Saturation

0.02

0.1

V

ERROR Flag Pin Leakage Current

1

nA

Threshold

(Note 7)

5

7

16

%

Threshold Hysteresis

(Note 7)

2

4.2

8

%

Flag Reset Delay

17

μs

SET/ADJ Mode

(for LR1107 5pins)

SET Voltage

Measured on ADJ,

1.110

1.145

1.188

V

AC PARAMETERS

Ripple Rejection

PSRR

60

dB

40

dB

Output Noise Density

f = 120Hz

0.8

μV

Output Noise Voltage

eN

BW = 10Hz – 100kHz

150

μVrms

Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied. Conditions

for which the device is intended to be functional is indicated by operating ratings, but specific performance

limits isn’t be guaranteed. To make sure of specifications and test conditions, read Electrical Characteristics.

Only for the test conditions listed the guaranteed specifications can be applied. When the device is not

operated under the listed test conditions some performance characteristics may degrade.

2. Devices must be derated based on package thermal resistance at elevated temperatures.

3. The most likely parametric norm represents at 25°C.

4. The LR1107/E output must be diode-clamped to ground. If used in a dual-supply system where the regulator

load is returned to a negative supply.

biased normally. If the voltage at the output terminal is forced to be higher than the voltage at the input

terminal this diode will get forward biased. This diode can withstand 650mA of peak current and 120mA of

DC current typically.

6. Output voltage line regulation is the change in output voltage from the nominal value which is due to change

in the input line voltage. Which is defined as the change in output voltage from the nominal value due to

change in load current is output voltage load regulation. The load regulation and line regulation specification

include the typical number only. But, the limits for load and line regulation are included in the output voltage

tolerance specification.

7. ERROR Flag hysteresis and threshold are specified as regulated output voltage’s percentage.

8. At which the output drops 2% below the normal value dropout voltage is defined as the minimum input to

output differential voltage. Only to output voltages of 2.5V and above dropout voltage specification applies.

For output voltages below 2.5V, since the minimum input voltage is 2.5V, the drop-out voltage is nothing but

the input to output differential.

the device is negligible.