RT5712B 参数 Datasheet PDF下载

RT5712B

Absolute Maximum Ratings





(Note 1)

Supply Input Voltage ----------------------------------------------------------------------------------------

0.3V

to 6.5V

LX Pin Switch Voltage---------------------------------------------------------------------------------------

0.3V

to (V

IN

+ 0.3V)

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

4.5V

to 7.5V



Power Dissipation, P

D

@ T

A

= 25C

WDFN-6L 2x2 -------------------------------------------------------------------------------------------------

0.833W



Package Thermal Resistance

(Note 2)

WDFN-6L 2x2,



JA

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

120C/W

WDFN-6L 2x2,



JC

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

7C/W









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

260C

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

40C

to 150C

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

65C

to 150C

ESD Susceptibility

(Note 3)

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

2kV

Recommended Operating Conditions







(Note 4)

Supply Input Voltage ----------------------------------------------------------------------------------------

2.7V

to 6V

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

Input Voltage

Feedback Reference Voltage

Feedback Leakage Current

DC Bias Current

Switching Leakage Current

Switching Frequency

Switch On Resistance, High

Switch On Resistance, Low

Valley Current Limit

Under-Voltage Lockout

Threshold

Over-Temperature Threshold

Enable Input

Voltage

Soft-Start Time

Logic-High

Logic-Low

Symbol

V

IN

V

REF

I

FB

Test Conditions

Min

2.7

0.591

Typ

--

0.6

--

300

--

--

1

100

70

2.9

2.25

2

150

--

--

1.2

Max

6

0.609

0.1

--

1

1

--

--

--

3.8

2.5

--

--

--

0.4

--

Unit

V

V

A

A

A

MHz

m

m

A

V

C

V

ms

V

FB

= 0.6V

Active, V

FB

= 0.63V, not switching

Shutdown

--

--

--

--

--

R

PMOS

R

NMOS

I

LIM

V

UVLO

I

SW

= 0.3A

I

SW

= 0.3A

--

--

2.1

VDD rising

VDD falling

--

--

--

1.2

--

--

V

IH

V

IL

T

SS

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www.richtek.com

4

DS5712B-04

June 2019