RT4723 datasheet(4/15 Pages) RICHTEK

4 / 15 page

RT4723

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS4723-00

April

2016

Absolute Maximum Ratings

(Note 1)

 Supply Input Voltage VIN Pin-------------------------------------------------------------------------------------0.3V to 6V



Output voltage VOP Pin -------------------------------------------------------------------------------------------

0.3V to 6V



Output voltage VON Pin -------------------------------------------------------------------------------------------

6V to 0.3V



Others pin to GND --------------------------------------------------------------------------------------------------

0.3V to 6V



Power Dissipation, PD @ TA = 25°C

WL-CSP-15B 1.39x2.07 (BSC) ---------------------------------------------------------------------------------2W



Package Thermal Resistance (Note 2)

WL-CSP-15B 1.39x2.07 (BSC),

JA ---------------------------------------------------------------------------49.8°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

MM (Machine Model) ---------------------------------------------------------------------------------------------200V

Recommended Operating Conditions

(Note 4)



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

2.5V to 4.6V



Positive Output Voltage----------------------------------------------------------------------------------------------

4.6V



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

2.4V to 0.6V



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

40C to 85C



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

40C to 125C

Electrical Characteristics

(VIN = 3.7V, VOP = 4.6V, VON = 2.4V, CIN = 4.7F, CBOOST = COP = 10F, CON = 20F, CF1 = 1F, L1 = 2.2H, TA = 25°C,

unless otherwise specified.)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Power Supply

Input Voltage Range

VIN

2.5

4.6

Under Voltage Lockout

Threshold Voltage

VUVLO_H

VIN Rising

2.2

2.5

VUVLO_L

VIN Falling

2.1

2.3

Over-temperature Protection

TOTP

(Note 5)

140

C

Over-temperature Protection

Hysteresis

TOTP_HYST

(Note 5)

C

Shutdown Current

ISHDN

SWIRE = 0V

A

Efficiency Peak 1

Eff_1

IOP = ION = 1mA

Efficiency Peak 2

Eff_2

IOP = ION = 5mA

Efficiency Peak 3

Eff_3

IOP = ION = 15mA

LDO Output

Positive Output Voltage Range

VOP

4.6

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