CAT6221.SLTD.GT3 datasheet(3/10 Pages) ONSEMI

Part #	CAT6221.SLTD.GT3

Description	300 mA CMOS Dual LDO Regulator

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Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Note 3)

(VIN = VOUT + 1.0 V, VEN = High, IOUT = 100 mA, CIN = COUT = 1 mF, ambient temperature of 25°C (over recommended operating

conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VOUT−ACC

Output Voltage Accuracy

Initial accuracy (Note 4)

−1.0

+1.0

%

−2.0

+2.0

TCOUT

Output Voltage Temp. Coefficient

40

ppm/°C

VR−LINE

Line Regulation

VIN = VOUT + 1.0 V to 5.5 V

−0.2

±0.1

+0.2

%/V

−0.4

+0.4

VR−LOAD

Load Regulation

IOUT = 100 mA to 300 mA

0.9

1.5

%

2

VDROP

Dropout Voltage (Note 5)

IOUT = 300 mA

210

280

mV

350

IGND

Ground Current

Both LDOs Enabled

IOUT = 0 mA

100

140

mA

170

Both LDOs Enabled

IOUT = 300 mA

160

One LDO Enabled

IOUT = 0 mA

55

75

90

One LDO Enabled

IOUT = 300 mA

85

IGND−SD

Shutdown Ground Current

VEN < 0.4 V

2

mA

4

PSRR

Power Supply Rejection Ratio

f = 1 kHz

60

dB

f = 20 kHz

45

ISC

Output short circuit current limit

VOUT = 0 V

130

mA

TON

Turn−On Time

150

ms

eN

Output Noise Voltage (Note 6)

BW = 10 Hz to 100 kHz

95

mVrms

ROUT−SH

Shutdown Switch Resistance

250

W

VIN−UVLO

Under voltage lockout threshold

2.15

V

ESR

COUT equivalent series resistance

5

500

mW

ENABLE INPUT (EN1, EN2)

VHI

Logic High Level

VIN = 2.3 to 5.5 V

1.8

V

VLO

Logic Low Level

VIN = 2.3 to 5.5 V

0.4

V

IEN

Enable Input Current

VEN = 0.4 V

0.05

1

mA

VEN = VIN

0.1

1

THERMAL PROTECTION

TSD

Thermal Shutdown

160

°C

THYS

Thermal Hysteresis

10

°C

3. Specification for 2.8 V output version unless specified otherwise.

4. For VOUT < 2.0 V, the initial accuracy is ±2% and across temp is ±3%.

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

differential. During test, the input voltage stays always above the minimum 2.3 V.

6. Specification for 1.8 V output version.

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