MAX8531EBT datasheet(3/12 Pages) MAXIM

Part #	MAX8531EBT

Description	Dual Low-Dropout Linear Regulators with RESETor Low-Noise Output in UCSP or QFN

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Manufacturer	MAXIM [Maxim Integrated Products]

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3 / 12 page

Dual Low-Dropout Linear Regulators

with RESET or Low-Noise Output in UCSP or QFN

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(IN = 3.8V, SHDN = IN, CBP = 10nF (MAX8531), TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

(Note 2)

Note 2: All units are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed by design.

Note 3: The dropout voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT for VIN = VOUT + 0.5V.

Specification applies only when VOUT

≥ 2.5V.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RESET OUTPUT (MAX8530 ONLY)

RESET Threshold

VTH

Percentage of nominal output, OUT1 falling,

when RESET falls.

84

87

89

%

RESET Threshold Hysteresis

0.5

%

IRESET = 500µA, IN = 3.8V

10

20

RESET Output Voltage Low

(Open-Drain, Active Low)

VOL

IRESET = 100µA, IN = 1.2V

10

40

mV

TA = +25°C

0.001

1

RESET Open-Drain

Output Leakage Current

V RESET = 6.5V

TA = +85°C

0.01

µA

RESET Active Timeout Delay

From OUT1 rising to RESET rising.

100

200

360

ms

Typical Operating Characteristics

VOUT1 = 3.3V, VOUT2 = 1.5V, load = 80mA (both output voltages), VIN = 3.8V, COUT_ = 2.2µF, CBP = 0.01µF, CIN = 2.2µF, and TA = +25°C,

unless otherwise noted.

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

6

5

4

3

2

1

50

100

150

200

250

0

80mA LOAD, BOTH OUTPUTS

NO LOAD

SUPPLY CURRENT

vs. LOAD CURRENT

LOAD CURRENT (mA)

70

60

40

50

20

30

10

20

40

60

80

100

120

140

160

180

200

0

080

BOTH OUTPUTS LOADED

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

60

35

10

-15

20

40

60

80

100

120

140

160

180

200

0

-40

85

80mA LOAD, BOTH OUTPUTS

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