MAX77813 datasheet(4/30 Pages) MAXIM

4 / 30 page

(VSYS = VIN = +3.8V, VOUTS = VOUT = +3.3V, TJ = -40°C to +125°C, typical values are at TA ≈ TJ = +25°C, unless otherwise noted.)

(Note 4)

Note 2: Limits are 100% production tested at TJ = +25°C. The device is tested under pulsed load conditions such that TJ ≈ TA.

Limits over the operating temperature range are guaranteed through correlation using statistical quality control methods.

Note 3: Guaranteed by design. Not production tested.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Turn-On Delay Time

tON_DLY

From EN asserting to LX switching with

bias ON

100

µs

Soft-Start Timer

tSS

IOUT = 10mA, ILIM = high

120

µs

IOUT = 10mA, ILIM = low

800

Minimum Effective Output

Capacitance

CEFF(MIN)

0A < IOUT < 2000mA

µF

LX1, LX2 Leakage Current

ILK_25C

VLX1/2 = 0V or 5.5V, VOUT = 5.5V,

VSYS = VIN = 5.5V, TJ = +25°C

0.1

µA

ILK_125C

VLX1/2 = 0V or 5.5V, VOUT = 5.5V,

VSYS = VIN = 5.5V, TJ = +125°C

0.2

POWER-OK COMPARATOR

Output POK Trip Level

Rising threshold

Falling threshold

VSYS UNDERVOLTAGE LOCKOUT

VSYS Undervoltage Lockout

Threshold

VUVLO_R

VSYS rising

2.375

2.50

2.625

VUVLO_F

VSYS falling

2.05

LOGIC AND CONTROL INPUTS

Input Low Level

VIL

EN, ILIM, VSYS = 3.8V, TJ = +125°C

0.4

Input High Level

VIH

EN, ILIM, VSYS = 3.8V, TJ = -40°C

1.2

POK Output Low Voltage

VOL

ISINK = 1mA

0.4

POK Output High Leakage

IOZH_25C

TJ = +25°C

-1

µA

IOZH_125C

TJ = +125°C

0.1

INTERNAL PULLDOWN RESISTANCE

RPD

Pulldown resistance to GND

400

800

1600

kΩ

MAX77813

5.5V Input, 2A, High-Efficiency

Buck-Boost Converter

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Buck-Boost Electrical Characteristics (continued)

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