MAX17577 datasheet(4/23 Pages) MAXIM

4 / 23 page

Electrical Characteristics (continued)

(VIN = VEN/UVLO = 24V, CVCC = 2.2μF, VFB = 1V, RT/SYNC = LX = SS = RESET = Open, VBST to VLX = 5V, VGND = VSOUT = VOUT

= 0V, TA = -40°C to +125°C. Typical values are at TA = +25°C. All voltages are referenced to SOUT, unless otherwise noted.) (Note 3)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SYNC Pulse-Width

tSYNC

100

SYNC Threshold

VIH

At RT/SYNC Pin (Note 5)

VRT/

SYNC +

0.2

VIL

At RT/SYNC Pin (Note 5)

VRT/

SYNC -

0.2

SYNC Duty-Cycle

Range

DSYNC

SYSTEM GROUND (GND)

GND Current

IGND

Sourcing

μA

RESET (REFERRED TO GND)

RESET Output Level

Low

VRESETL

IRESET = 10mA (Referred to GND)

0.4

RESET Output-Leakage

Current

IRESETLKG

TA = TJ = +25°C, VRESET = 5.5V

-0.1

+0.1

μA

FB Threshold for

RESET Deassertion

VFB-OKR

VFB Rising

93.8

97.8

FB Threshold for

RESET Assertion

VFB-OKF

VFB Falling

90.5

94.6

RESET Delay after FB

reaches 95% regulation

1024

Cycles

THERMAL SHUTDOWN

Thermal Shutdown

Rising Threshold

TSHDNR

165

°C

Thermal Shutdown

Hysteresis

TSHDNHY

°C

Note 3: Electrical specifications are production tested at TA = +25ºC. Specifications over the entire operating temperature range are

guaranteed by design and characterization.

Note 4: See the Overcurrent Protection (OCP)/Hiccup Mode section for more details

Note 5: VRT/SYNC = IRT_BIAS × RRT/SYNC. See the Switching Frequency and External Clock Synchronization (RT/SYNC) section for

more details.

MAX17577, MAX17578

4.5V to 60V, 1A High-Efficiency, Synchronous,

Inverting Output DC-DC Converters

www.maximintegrated.com

Maxim Integrated | 4

MAX17577 Datasheet(PDF) 4 Page - Maxim Integrated Products

MAX17577 Datasheet(HTML) 4 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Datasheet Download

Link URL