HT1117-25 HOLTEK [Holtek Semiconductor Inc], HT1117-25 Datasheet

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HT1117-25

Manufacturer Part Number
HT1117-25
Description
1A General Purpose LDO
Manufacturer
HOLTEK [Holtek Semiconductor Inc]
Datasheet
Features
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Applications
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General Description
The HT1117 devices are a series of three-terminal high
current low voltage regulators. They can deliver an out-
put current of 1A and can accept input voltages up to
12V. The devices are available in both adjustable and
Selection Table
Note:
Block Diagram
Rev. 1.00
Output voltage ranges: Fixed range of 1.8V, 2.5V,
2.85V, 3.3V, 5.0V or adjustable type.
High accuracy: ±2%
Low voltage drop: 1.1V (typ.), V
Active SCSI terminations
Post regulator for switching power supplies
Low voltage microcontrollers
For lead free devices, a ²#² mark is suffixed at the end of the date code.
HT1117-ADJ
HT1117-18
HT1117-25
HT1117-28
HT1117-33
HT1117-50
Part No.
OUT
Output Voltage
=5.0V at 1A
Adjust
2.85V
1.8V
2.5V
3.3V
5.0V
1A General Purpose LDO
1
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fixed output voltage type with a range of 1.8V to 5.0V. In-
ternal current limit and thermal protection circuits pro-
vide protection against overload conditions that could
create excessive junction temperatures.
Guaranteed output current: 1A
Low quiescent current: 8mA (typ.)
Integrated current limit & thermal protection circuits
SOT-223 package
Motherboard clock supplies
Battery chargers
Package
SOT-223
HT1117 Series
HT1117-ADJ
HT1117-18
HT1117-25
HT1117-28
HT1117-33
HT1117-50
Marking
August 7, 2007

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HT1117-25 Summary of contents

Page 1

... In- ternal current limit and thermal protection circuits pro- vide protection against overload conditions that could create excessive junction temperatures. Package Adjust 1.8V 2.5V SOT-223 2.85V 3.3V 5.0V 1 HT1117 Series Marking HT1117-ADJ HT1117-18 HT1117-25 HT1117-28 HT1117-33 HT1117-50 August 7, 2007 ...

Page 2

... Input Supply Voltage ..................V SS Thermal Information Symbol Parameter Thermal Resistance q JA (Junction to Ambient) P Power Dissipation D Note measured at Ta= 25°C D Rev. 1.00 +13V Storage Temperature ...........................-50°C to 125°C SS +12V Ambient Temperature ............................-40°C to 85°C SS Package Max. SOT-223 134 SOT-223 0.75 2 HT1117 Series Unit °C/W W August 7, 2007 ...

Page 3

... Current limit is measured by pulsing for a short time. Rev. 1.00 T =25° +1.5V, I =10mA, unless otherwise specified (see note OUT O Test Conditions Min. 2.75V £ V £ 12V 1.225 IN HT1117-18 1.764 HT1117-25 2.45 HT1117-28 2.793 HT1117-33 3.234 HT1117-50 4.90 10mA £ I £ OUT 2.75V £ V £ 12V ¾ ¾ =2%, I ...

Page 4

... C1 is required if the needed if the device is located far from filter capacitors, the recommended value is 10mF required for stability, the recommended value is 10mF. Typical Application Circuits · 1.25V~10.5V regulator £ £ m Rev. 1. OUT REF ADJ HT1117 Series August 7, 2007 ...

Page 5

... Digitally selected outputs m · High output current positive voltage regulator m · Increased Output voltage Circuit m Rev. 1. OUT HT1117 Series m August 7, 2007 ...

Page 6

... Dual Supply Circuit m · Tracking Voltage Regulator m Rev. 1. OUT1 XX2 XX1 OUT2 XX2 HT1117 Series m August 7, 2007 ...

Page 7

... Package Information 3-pin SOT-223 Outline Dimensions Symbol Rev. 1.00 Dimensions in mm Min. Nom. ¾ ¾ ¾ 0.02 ¾ 1.50 ¾ 0.66 ¾ 0.23 ¾ 6.30 ¾ 6.70 ¾ 3.30 ¾ 2.3 ¾ 4.6 ¾ 0.75 ¾ 0° 7 HT1117 Series q Max. 1.8 0.10 1.70 0.84 0.35 6.70 7.30 3.70 ¾ ¾ ¾ 10° August 7, 2007 ...

Page 8

... Product Tape and Reel Specifications Reel Dimensions SOT-223 Symbol Description A Reel Outer Diameter B Reel Inner Diameter C Spindle Hole Diameter D Key Slit Width T1 Space Between Flange T2 Reel Thickness Rev. 1.00 HT1117 Series Dimensions in mm 330±1 62±1.5 12.75±0.15 2+0.6 12.4+0.2 16.4-0.4 8 August 7, 2007 ...

Page 9

... Cavity to Perforation (Width Direction) D Perforation Diameter D1 Cavity Hole Diameter P0 Perforation Pitch P1 Cavity to Perforation (Length Direction) A0 Cavity Length B0 Cavity Width K0 Cavity Depth t Carrier Tape Thickness C Cover Tape Width Rev. 1.00 HT1117 Series Dimensions in mm 12±0.3 8±0.1 1.75±0.1 5.5±0.05 1.5+0.1 1.5+0.1 4±0.1 2±0.05 6.9±0.1 7.5±0.1 2.1±0.1 0.3±0.05 9.3 9 August 7, 2007 ...

Page 10

... 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. Rev. 1.00 HT1117 Series 10 August 7, 2007 ...

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