RT5070GSP datasheet(4/13 Pages) RICHTEK

4 / 13 page

RT5070

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS5070-01

November

2016

Absolute Maximum Ratings

(Note 1)



Supply Input Voltage, VIN-------------------------------------------------------------------------------------------

0.3V to 28V



Output Voltage LNB, LX and BOOST Pins ---------------------------------------------------------------------

0.3V to 30V



Others Pin to GND ----------------------------------------------------------------------------------------------------

0.3V to 6V



Power Dissipation, PD @ TA = 25C

SOP-8 (Exposed pad) ------------------------------------------------------------------------------------------------

3.44W



Package Thermal Resistance

(Note 2)

SOP-8 (Exposed pad),

JA------------------------------------------------------------------------------------------29C/W

SOP-8 (Exposed pad),

JC------------------------------------------------------------------------------------------2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)



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

8V to 16V



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

40C to 85C



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

40C to 125C

Electrical Characteristics

(VIN (typ.) = 12V, VIN = 8V to 16V, TA = 25C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

General

LNB Output Accuracy,

Load and Line Regulation

ERR

Relative to selected VLNB target level,

ILOAD = 0 to 450mA

3

Supply Current

IIN_OFF

EN = 0, LNB output disabled

0.3

0.5

IIN_ON

EN = 1, VLNB = 18.3V, Tone = 0V

Boost Switch On

Resistance

RDS(ON)

ILOAD = 450mA

150

300



Switching Frequency

fSW

600

700

800

kHz

Switch Current Limit

ILIMSW

VIN = 10V, VOUT = 20.5V

Linear Regulator Voltage

Drop

VDROP

VBOOST-VLNB, ILOAD = 450mA

0.85

Output Voltage Rise Time

TR_LNB

For VLNB = 13.3V18.3V,

CTCA P= 100nF, ILOAD = 450mA

Output Voltage Pull-Down

Time

TF_LNB

For VLNB = 18.3V13.3V,

CLOAD = 100nF, ILOAD = 0mA

Ripple and Noise on LNB

Output

VRIP_PP

20MHz bandwidth limit (GBD)

mVPP

Load Regulation

VOUT_LOAD

VOUT = 13.3V, IOUT = 50mA to 450mA

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