SC173AEVB datasheet(4/26 Pages) SEMTECH

部件名	SC173AEVB

功能描述	3A EcoSpeedTM Synchronous Step-Down Regulator with Automatic Power Save

PDF	26 Pages

Scroll/Zoom	100%

制造商	SEMTECH [Semtech Corporation]

网页	http://www.semtech.com

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4 / 26 page

Electrical Characteristics (continued)

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Power Good

Power Good Threshold

Power Good Signal Threshold High

116

120

124

OUT

Power Good Signal Threshold Low

PGOOD Delay Time(1)

VDD=3V

VDD=5V

Noise Immunity Delay Time

µs

Leakage

µA

Power Good On-Resistance

Ω

Fault Protection

Output Under-Voltage Fault

FB with Respect to REF,

8 Consecutive Clocks

-30

-25

-20

Output Over-Voltage Fault

FB with Respect to REF

+16

+20

+24

Smart PowerSave

Protection Threshold

FB with Respect to REF

+10

+13

OV, UV Fault Noise Immunity Delay

μs

Over-Temperature Shutdown

OT Latched

150

°C

Enable

Output Enabled

Output Disabled

0.4

EN Input Bias Current

EN = VDD or 0V

0.5

8.0

μA

Enable Pin Floating Voltage

EN floating

Unless specified: V

IN =5V, TA=+25°C for Typ, -40°C to +85°C for Min and Max, TJ < 125°C

SC173A

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