ht73xx-7 30v, 250ma tinypowertm ldo with protections · rev. 1.30 3 april 15, 2016 ht73xx-7...

Rev. 1.00 1 April 15, 2016 Rev. 1.00 PB April 15, 2016

HT73xx-730V, 250mA TinyPowerTM LDO with Protections

Features• Lowpowerconsumption• Lowvoltagedrop• Lowtemperaturecoefficient• Highinputvoltage–upto30V• Outputvoltageaccuracy:tolerance±2%• Overcurrentprotection• Overtemperatureprotection• Chipenable/disablefunction• Packagetypes:8-pinSOP-EP,SOT89-3andTO92-3

Applications• Battery-poweredequipment• Communicationequipment• Audio/Videoequipment

General DescriptionTheHT73xx-7isalowpowerhighvoltageseriesofregulators implementedinCMOStechnologywhichhas the advantages of lowvoltagedrop and lowquiescentcurrent.Theyallowinputvoltagesashighas30Vandareavailablewithseveral fixedoutputvoltagesrangingfrom2.1Vto5.0V.

WhentheCEinputislow,afastdischargepathpullstheoutput voltage lowvia an internal pull-downresistor.An internalover-currentprotectioncircuitprevents thedevicefromdamageevenif theoutputisshortedtoground.Anover-temperatureprotectioncircuitensures thedevice junction temperaturewillnotexceedatemperatureof150°C.

Selection TablePart No. Output Voltage Packages Markings

HT7321-7 2.1V

8SOP-EPTO92-3, SOT89-3

HT73xx-7 for the 8SOP-EP type.73xx-7 marking for the TO92-3, SOT89-3 types.

HT7323-7 2.3VHT7325-7 2.5VHT7327-7 2.7VHT7330-7 3.0VHT7333-7 3.3VHT7336-7 3.6VHT7340-7 4.0VHT7344-7 4.4VHT7350-7 5.0V

Note:"xx"standsforoutputvoltages.

Rev. 1.30 2 April 15, 2016

HT73xx-7

Block Diagram

Vref

OTP

OCP

Soft Start

VIN

CE

GND

OUT

En

300Ω

En

Pin Assignment

GND VIN OUT

1 2 3

73xx-7

SOT89-3 TO92-3

73xx-7

GND VIN OUT1 2 3

VINCENCGND

OUTNCNCNC

HT73xx-78 SOP-A

(Exposed Pad)

9VIN

1234

8765

Pin DescriptionsPin No.

Pin Name Pin Description8SOP-EP SOT89-3 TO92-3

5 1 1 GND Ground pin8, 9 2 2 VIN Input pin1 3 3 OUT Output pin7 — — CE Chip enable pin, high enable

2, 3, 4, 6 — — NC No connection

Rev. 1.30 3 April 15, 2016

HT73xx-7

Absolute Maximum RatingsParameter Value Unit

VIN -0.3 to +33 VVCE -0.3 to (VIN+0.3) VOperating Temperature Range, Ta -40 to +85 oCMaximum Junction Temperature, TJ(MAX) +150 oCStorage Temperature Range -65 to +165 oC

Junction-to-Ambient Thermal Resistance, θJA

8SOP-EP 125 °C/WSOT89-3 200 °C/WTO92-3 200 °C/W

Power Dissipation, PD

8SOP-EP 0.80 WSOT89-3 0.50 WTO92-3 0.50 W

Note:PDismeasuredatTa=25°C.

Recommended Operating RangeParameter Value Unit

VIN VOUT+2 to 30 VVCE 0 to VIN V

Electrical CharacteristicsVIN=VOUT+2V, VCE=VIN, Ta=25oC and CIN=COUT=10μF, unless otherwise specified

Symbol Parameter Test Conditions Min. Typ. Max. UnitVIN Input Voltage — — — 30 VVOUT Output Voltage Range — 2.1 — 5.0 VVO Output Voltage Accuracy IOUT=10mA -2 — 2 %IOUT Output Current — 250 — — mA|∆VOUT| Load Regulation 1mA ≤ IOUT ≤ 100mA — 45 90 mV

VDIF Dropout Voltage IOUT=1mA, VOUT Change=2% (Note) — 6 15 mVIOUT=30mA, VOUT Change=2% (Note) — 120 300 mV

ISS1Quiescent Current

IOUT=0mA — 2.5 4.0 μAISS2 VCE=2.0V, VIN=30V, IOUT=0mA — 3.0 5.0 μAISHD Shutdown Current VCE=0V — 0.1 0.5 μA

∆VOUT

∆VIN × ∆VOUTLine Regulation (VOUT+1V) ≤ VIN ≤ 30V, IOUT=1mA — 0.1 0.2 %/V

∆VOUT

∆Ta × ∆VOUTTemperature Coefficient IOUT=40mA, -40°C < Ta < 85°C — ±100 — ppm/°C

ISHORT Output Short Current VIN=12V, force VOUT=0V — 250 — mATSHD Shutdown Temperature — — 150 — oCTREC Recovery Temperature — — 25 — oCVIH Enable High Threshold CE pin, VOUT+1V ≤ VIN ≤ 30V 2.0 — — VVIL Enable Low Threshold CE pin, VOUT+1V ≤ VIN ≤ 30V — — 0.6 VRDIS Discharge Resistor CE=0V, measure at VOUT — 300 — Ω

Note:Thedropoutvoltageisdefinedastheinputvoltageminustheoutputvoltagethatproducesa2%changeintheoutputvoltagefromthevalueatVIN=VOUT+2Vwithafixedload.

Rev. 1.30 4 April 15, 2016

HT73xx-7

Typical Performance CharacteristicTestCondition:VIN=VOUT+2V,VCE=VIN,IOUT=10mA,CIN=10μF,COUT=10μFandTa=25ºC,unlessotherwisenoted.

3.25

3.26

3.27

3.28

3.29

3.3

3.31

3.32

3.33

4 7 10 13 16 19 22 25 28 31

VIN(V)

VOU

T(V)

-40°C25°C85°C

4.9

4.92

4.94

4.96

4.98

5

5.02

5.04

5.06

5 8 11 14 17 20 23 26 29 32

VIN(V)

VOU

T(V)

-40°C25°C85°C

Line Regulation: HT7333-7 (IOUT=10mA) Line Regulation: HT7350-7 (IOUT=10mA)

1

1.2

1.4

1.6

1.8

2

2.2

2.4

4 7 10 13 16 19 22 25 28 31

VIN(V)

ISS (u

A)

85°C25°C-40°C

1

1.5

2

2.5

3

3.5

4

4.5

5 8 11 14 17 20 23 26 29 32

VIN(V)

ISS (u

A)

-40°C25°C85°C

ISS vs VIN: HT7333-7 (IOUT=0mA) ISS vs VIN: HT7350-7 (IOUT=0mA)

0

0.1

0.2

0.3

0.4

0.5

4 7 10 13 16 19 22 25 28 31VIN(V)

I SH

D(uA

)

-40°C25°C85°C

0

0.1

0.2

0.3

0.4

0.5

5 8 11 14 17 20 23 26 29 32VIN(V)

I SH

D(uA

)

-40°C25°C85°C

ISHD vs VIN: HT7333-7 (IOUT=0mA) ISHD vs VIN: HT7350-7 (IOUT=0mA)

0

50

100

150

200

250

0 25 50 75 100 125 150 175 200 225 250IOUT(mA)

I SS(

uA)

-40°C25°C85°C

0

50

100

150

200

250

0 25 50 75 100 125 150 175 200 225 250IOUT(mA)

I SS(u

A)

-40°C25°C85°C

ISS vs IOUT: HT7333-7 (VIN=5.3V) ISS vs IOUT: HT7350-7 (VIN=7.0V)

0

0.5

1

1.5

2

2.5

3

2.5 5.5 8.5 11.5 14.5 17.5 20.5 23.5 26.5 29.5 32.5VCE(V)

ISS(u

A)

-40°C25°C85°C

0

0.5

1

1.5

2

2.5

3

2.5 5.5 8.5 11.5 14.5 17.5 20.5 23.5 26.5 29.5 32.5VCE(V)

ISS(u

A)

-40°C25°C85°C

ISS vs VCE: HT7333-7 (IOUT=0mA) ISS vs VCE: HT7350-7 (IOUT=0mA)

Rev. 1.30 5 April 15, 2016

HT73xx-7

TestCondition:VIN=VOUT+2V,VCE=VIN,IOUT=10mA,CIN=10μF,COUT=10μFandTa=25ºC,unlessotherwisenoted

0

20

40

60

80

100

120

140

160

180

5 7 9 11 13 15 17 19 21 23 25 27 29 31VIN(V)

Tem

pera

ture

(C)

TSHD(+)THD(-)

0

100

200

300

400

500

600

700

4 7 10 13 16 19 22 25 28 31VIN(V)

I SH

D(m

A)

-40°C25°C85°C

TSHD vs VIN ISHD vs VIN

0200400600800

1000120014001600

0 25 50 75 100 125 150 175 200 225 250IOUT(mA)

VD

IF(m

V)

-40°C25°C85°C

0

200

400

600

800

1000

1200

1400

0 25 50 75 100 125 150 175 200 225 250IOUT(mA)

VD

IF(m

V)

-40°C25°C85°C

Dropout Voltage: HT7333-7 Dropout Voltage: HT7350-7

Rev. 1.30 6 April 15, 2016

HT73xx-7

TestCondition:VIN=VOUT+2V,VCE=VIN,IOUT=10mA,CIN=10μF,COUT=10μFandTa=25ºC,unlessotherwisenoted.

Load Transient Response: HT7333-7 (VIN=5.3V, IOUT=0mA to 40mA)




Line Trasient Response: HT7333-7 (IOUT=10mA) Line Trasient Response: HT7350-7 (IOUT=10mA)


Rev. 1.30 7 April 15, 2016

HT73xx-7




Power On Response: HT7333-7 (IOUT=0mA,VCE=0V to 2.7V)


Power Off Response: HT7333-7 (IOUT=0mA,VCE=2.7V to 0V)


Rev. 1.30 8 April 15, 2016

HT73xx-7






Power On Response: HT7333-7 (IOUT=0mA, TRISE=0.1ms)


Power Off Response: HT7333-7 (IOUT=0mA, TFALL=0.1ms)


Rev. 1.30 9 April 15, 2016

HT73xx-7


Power On Response: HT7333-7 (IOUT=0mA, TRISE=100ms)


Power Off Response: HT7333-7 (IOUT=0mA, TFALL=100ms)






Rev. 1.30 10 April 15, 2016

HT73xx-7






Rev. 1.30 11 April 15, 2016

HT73xx-7

Application InformationWhenusingtheHT73xx-7regulators,it isimportantthat the followingapplicationpoints arenoted ifcorrectoperationistobeachieved.

External CircuitIt is important thatexternalcapacitorsareconnectedtoboth the inputandoutputpins.For the inputpinsuitablebypasscapacitorsasshownintheapplicationcircuitsshouldbeconnectedespecially insituationswhereabatterypowersourceisusedwhichmayhaveahigher impedance.For theoutputpin,a suitablecapacitor should alsobe connected especially insituationswhere the loadisofa transientnature, inwhichcaselargercapacitorvaluesshouldbeselectedtolimitanyoutputtransientvoltages.

Thermal ConsiderationsThemaximumpowerdissipationdepends on thethermal resistanceof thepackage, thePCBlayout,therateofthesurroundingairflowandthedifferencebetweenthe junctionandambient temperature.Themaximumpowerdissipationcanbecalculatedusingthefollowingformula:

PD(MAX)=(TJ(MAX)–Ta)/θJA

whereTJ(MAX) is themaximumjunctiontemperature,TaistheambienttemperatureandθJA isthejunction-to-ambient thermal resistanceof the ICpackage indegreesperwatt.ThefollowingtableshowstheθJAvaluesforvariouspackagetypes.

Package θJA value °C/WSOT89-3 200°C/WTO92-3 200°C/W

8SOP-EP 125°C/W

Formaximum operating rating conditions, themaximumjunctiontemperature is150°C.However,it is recommended that themaximum junctiontemperaturedoesnotexceed125°Cduringnormaloperationtomaintainanadequatemarginfordevicereliability.Thederatingcurvesofdifferentpackagesformaximumpowerdissipationareasfollows:

25 50 75 100 125 1500

0.2

0.4

0.6

0.8

1.0

SOT89-3, TO92-3

0

Ambient Temperature (oC)

Max

imum

Pow

er D

issi

patio

n (W

)

8SOP-EP

0.8W

0.5W

Power Dissipation CalculationInordertokeepthedevicewithinitsoperatinglimitsandtomaintainaregulatedoutputvoltage,thepowerdissipation of the device, givenbyPD,must notexceed theMaximumPowerDissipation,givenbyPD(MAX).ThereforePD≤PD(MAX).Fromthediagramitcanbeseenthatalmostallofthispowerisgeneratedacross the pass transistorwhich is acting like avariable resistor inserieswith the load tokeep theoutputvoltageconstant.Thisgeneratedpowerwhichwillappearasheat,mustneverallowthedevice toexceeditsmaximumjunctiontemperature.

Inpracticalapplicationstheregulatormaybecalledupon to provide both steady state and transientcurrents due to the transient nature of the load.Althoughthedevicemaybeworkingwellwithinitslimitswithitssteadystatecurrent,caremustbetakenwith transient loadswhichmaycausethecurrent toriseclose to itsmaximumcurrentvalue.Caremustbetakenwithtransientloadsandcurrentsasthiswillresultindevicejunctiontemperatureriseswhichmustnotexceedthemaximumjunctiontemperature.Withbothsteadystateandtransientcurrents,theimportantcurrent toconsider is theaverageormorepreciselytheRMScurrentwhichisthevalueofcurrentthatwillappearasheatgeneratedinthedevice.Thefollowingdiagramshowshowtheaveragecurrentrelatestothetransientcurrents.

Time

ILOAD

ILOAD(AVG)

Rev. 1.30 12 April 15, 2016

HT73xx-7

Asthequiescentcurrentofthedeviceisverysmallitcangenerallybeignoredandasaresulttheinputcurrentcanbeassumedtobeequaltotheoutputcurrent.Thereforethepowerdissipationofthedevice,PD,canbecalculatedasthevoltagedropacrosstheinputandoutputmultipliedbythecurrent,givenbytheequation,PD=(VIN–VOUT)×IIN.AstheinputcurrentisalsoequaltotheloadcurrentthepowerdissipationPD=(VIN–VOUT)×ILOAD.However,withtransientloadcurrents,PD=(VIN–VOUT)×ILOAD(AVG)asshowninthefigure.

Vref

VIN

GND

OUT

Vfb

VIN

Common

VOUT

IIN

Common

ILOADCE

Application Circuits

Basic Circuits

HT73xx-7Series

VIN

10μF0.1μF

VIN

Common

VOUT

10μF 0.1μF

VOUT

Common

C3 C1 C2 C4

GND

VCE

OFF ON

High Output Current Positive Voltage Regulator

HT73xx-7Series

VIN

10μF0.1μF

VIN

Common

VOUT

10μF 0.1μF

VOUT

Common

C3 C1 C2 C4

TR1

R1

GND

VCE

OFF ON

Rev. 1.30 13 April 15, 2016

HT73xx-7

Circuit for Increasing Output Voltage

VCE

HT73xx-7Series

VIN

10μF0.1μF

VINVOUT

10μF 0.1μF

VOUT

C3 C1 C2 C4 Vxx

Common Common

R1

R2

ISS

VOUT = Vxx×(1+R2/R1) + ISS×R2

GND

OFF ON

Circuit for Increasing Output Voltage

VCEHT73xx-7

Series

VIN

10μF0.1μF

VINVOUT

10μF 0.1μF

VOUT

C3 C1 C2 C4 Vxx

Common Common

R1

D1

ISS

VOUT = Vxx + VD1

GND

OFF ON

Constant Current Regulator

VCEHT73xx-7

Series

VIN

10μF0.1μF

VINVOUT

10μF 0.1μF

VOUT

C3 C1 C2 C4 Vxx

Common Common

RA

RL

ISS

IOUT = Vxx / RA + ISS

IOUT

GND

OFF ON

Rev. 1.30 14 April 15, 2016

HT73xx-7

Dual Supply

VCE HT73xx-7Series

VIN

10μF0.1μF

VINVOUT

10μF 0.1μF

VOUT

C3 C1

C5 C6

Common

D1GND

R1

VOUTHT73xx-7Series

VIN VOUT

GND 10μF

C2

0.1μF

C4

Common

OFF ON

OFF ONVCE

Rev. 1.30 15 April 15, 2016

HT73xx-7

Package Information

Notethat thepackageinformationprovidedhereisforconsultationpurposesonly.Asthis informationmaybeupdatedatregularintervalsusersareremindedtoconsulttheHoltekwebsiteforthelatestversionofthepackageinformation.

Additionalsupplementaryinformationwithregardtopackagingislistedbelow.Clickontherelevantsectiontobetransferredtotherelevantwebsitepage.

• FurtherPackageInformation(includeOutlineDimensions,ProductTapeandReelSpecifications)

• PackingMeterialsInformation

• Cartoninformation

http://www.holtek.com.tw/en/home

http://www.holtek.com.tw/documents/10179/106680/package.pdf/298fef3d-09ba-4761-bfe1-ffe926b29b69

http://www.holtek.com.tw/documents/10179/106680/packing-e.pdf/85fb6099-59f5-46dc-a2ab-f78d37132bcb

http://www.holtek.com.tw/documents/10179/106680/carton.pdf/7a41fa3b-c9e5-402e-a7e9-a609d78b9612

Rev. 1.30 16 April 15, 2016

HT73xx-7

8-pin SOP-EP Outline Dimensions

SymbolDimensions in inch

Min. Nom. Max.A — 0.236 BSC —B — 0.154 BSC —C 0.012 — 0.020C' — 0.193 BSC —D — — 0.069

D1 0.059 — —E — 0.050 BSC —

E2 0.039 — —F 0.004 — 0.010G 0.016 — 0.050H 0.004 — 0.010α 0° — 8°

SymbolDimensions in mm

Min. Nom. Max.A — 6.00 BSC —B — 3.90 BSC —C 0.31 — 0.51C' — 4.90 BSC —D — — 1.75

D1 1.50 — —E — 1.27 BSC —

E2 1.00 — —F 0.10 — 0.25G 0.40 — 1.27H 0.10 — 0.25α 0° — 8°

Rev. 1.30 17 April 15, 2016

HT73xx-7

3-pin SOT89-3 Outline Dimensions


Min. Nom. Max.A 0.173 — 0.181 B 0.053 — 0.072 C 0.090 — 0.102 D 0.035 — 0.047 E 0.155 — 0.167 F 0.014 — 0.019 G 0.017 — 0.022H — 0.059 BSC —I 0.055 — 0.063J 0.014 — 0.017


Min. Nom. Max.A 4.40 — 4.60B 1.35 — 1.83C 2.29 — 2.60D 0.89 — 1.20E 3.94 — 4.25F 0.36 — 0.48G 0.44 — 0.56 H — 1.50 BSC —I 1.40 — 1.60 J 0.35 — 0.44

Rev. 1.30 18 April 15, 2016

HT73xx-7

3-pin TO92-3 Outline Dimensions


Min. Nom. Max.A 0.173 0.180 0.205B 0.170 — 0.210C 0.500 0.580 —D — 0.015 BSC —E — 0.010 BSC —F — 0.050 BSC —G — 0.035 BSC —H 0.125 0.142 0.165


Min. Nom. Max.A 4.39 4.57 5.21B 4.32 — 5.33C 12.70 14.73 —D — 0.38 BSC —E — 2.54 BSC —F — 1.27 BSC —G — 0.89 BSC —H 3.18 3.61 4.19

Rev. 1.30 19 April 15, 2016

HT73xx-7

Copyright© 2016 by HOLTEK SEMICONDUCTOR INC.

The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek's products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw/en/home.

http://www.holtek.com.tw/en/home

ht73xx-7 30v, 250ma tinypowertm ldo with protections · rev. 1.30 3 april 15, 2016 ht73xx-7...

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