RT4813 参数 Datasheet PDF下载

RT4813

Absolute Maximum Ratings





(Note 1)

VIN, FB, EN, SDA, SCL to GND -----------------------------------------------------------------------------------

0.2V

to 6V

SW to GND -------------------------------------------------------------------------------------------------------------

0.2V

to 6V

< 20ns --------------------------------------------------------------------------------------------------------------------

2V

to 9.4V

VOUT to GND ----------------------------------------------------------------------------------------------------------

6V

Power Dissipation, P

D

@ T

A

= 25C

UQFN-9L 2x2 (FC) ----------------------------------------------------------------------------------------------------

0.89W







Package Thermal Resistance

(Note 2)

UQFN-9L 2x2 (FC),



JA

----------------------------------------------------------------------------------------------

111.5C/W

UQFN-9L 2x2 (FC),



JC

----------------------------------------------------------------------------------------------

19.6 C/W









Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------

260C

Junction Temperature ------------------------------------------------------------------------------------------------

150C

Storage Temperature Range ---------------------------------------------------------------------------------------

65C

to 150C

ESD Susceptibility

(Note 3)

HBM (Human Body Model) -----------------------------------------------------------------------------------------

2kV

Recommended Operating Conditions









(Note 4)

Input Voltage Range --------------------------------------------------------------------------------------------------

1.8V

to 5.5V

Output Voltage Range -----------------------------------------------------------------------------------------------

1.8V

to 5.5V

Ambient Temperature Range---------------------------------------------------------------------------------------

40C

to 85C

Junction Temperature Range --------------------------------------------------------------------------------------

40C

to 125C

Electrical Characteristics

(V

IN

= 3.6V, T

A

= 25C, unless otherwise specified)

Parameter

Under Voltage Lockout

Rising Threshold

Under Voltage Lockout

Falling Threshold

FB Voltage

VOUT Voltage (I

2

C)

Shutdown Current

Quiescent Current

Pre-Charge Current

Switching Frequency

Valley Current Limit

High Side Switch R

ON

Low Side Switch R

ON

FB Pin Input Leakage

Leakage of SW

Symbol

V

UVLOR

V

UVLOF

V

FB

V

OUT

I

SHDN

I

Pre

f

SW

I

OC

V

IN

= 5V

V

IN

= 5V

I

FB

I

SW

CCM

CCM

EN = 0V

Test Conditions

Min

1.6

1.5

0.495

1

--

--

--

Typ

1.7

1.6

0.5

0

0.1

120

1

0.5

6

43

26

--

--

Max

1.8

1.7

0.505

1

2

--

--

--

--

55

35

1

5

Unit

V

V

V

%

A

A

A

MHz

A

m

m

A

A

Close loop, no load

V

OUT



V

IN

> 1V, CCM

--

--

--

--

1

--

Copyright © 2019 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS4813-09

August 2019

www.richtek.com

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