LD1117ADT-TR STMicroelectronics, LD1117ADT-TR Datasheet

IC REG LDO POS 1A ADJ D-PAK

LD1117ADT-TR

Manufacturer Part Number
LD1117ADT-TR
Description
IC REG LDO POS 1A ADJ D-PAK
Manufacturer
STMicroelectronics
Datasheets
1.LD1117ASTR.pdf (24 pages)
2.LD1117AS18TR.pdf (26 pages)

Specifications of LD1117ADT-TR

Regulator Topology
Positive Adjustable
Voltage - Output
1.25 ~ 15 V
Voltage - Input
Up to 15V
Voltage - Dropout (typical)
1.15V @ 1A
Number Of Regulators
1
Current - Output
1.2A
Operating Temperature
0°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-252-2, DPak (2 Leads + Tab), TO-252AA, SC-63
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
10 V
Output Voltage
1.25 V to 15 V
Output Type
Adjustable
Dropout Voltage (max)
1.1 V at 100 mA
Output Current
1000 mA
Line Regulation
6 mV / V
Load Regulation
10 mV
Voltage Regulation Accuracy
2 %
Maximum Power Dissipation
12 W
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
Reference Voltage
1.275 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-3452-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
LD1117ADT-TR
Manufacturer:
STM
Quantity:
3 970
Company:
BOSTOCK HK LIMITED BOSTOCK HK LIMITED
Part Number:
LD1117ADT-TR
Manufacturer:
ST
0
Features
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Description
The LD1117Axx is a low drop voltage regulator
able to provide up to 1 A of output current,
available even in adjustable version (V
V). Concerning fixed versions, are offered the
following output voltages: 1.2 V, 1.8 V, 2.5 V and
3.3 V. The device is supplied in: SOT-223, DPAK
and TO-220. Surface mount packages optimize
the thermal characteristics even offering a
relevant space saving effect. High efficiency is
assured by NPN pass transistor. Only a very
Table 1.
November 2010
Low dropout voltage:
– 1.15 V typ. @ I
Very low quiescent current:
– 5 mA typ. @ 25 °C
Output current up to 1 A
Fixed output voltage of:
– 1.2 V, 1.8 V, 2.5 V, 3.3 V
Adjustable version availability (V
Internal current and thermal limit
Only 10 µF for stability
Available in ± 2 % (at 25 °C) and 4 % in full
temperature range
High supply voltage rejection:
– 80 dB typ. (at 25 °C)
Temperature range: 0 °C to 125 °C
LD1117AS12TR
LD1117AS18TR
LD1117AS33TR
LD1117ASTR
SOT-223
Device summary
Low drop fixed and adjustable positive voltage regulators
OUT
= 1 A, 25 °C
Order codes
LD1117ADT12TR
LD1117ADT18TR
LD1117ADT33TR
LD1117ADT-TR
REL
DPAK
REF
= 1.25 V)
LD1117AXX12, LD1117AXX18
= 1.25
Doc ID 7194 Rev 23
LD1117AXX33, LD1117AXX
common 10 µF minimum capacitor is needed for
stability. Only chip trimming allows the regulator to
reach a very tight output voltage tolerance, within
± 2 % at 25 °C.
LD1117AV33
TO-220
TO-220
Adjustable from 1.25 to 15 V
DPAK
Output voltage
1.2 V
1.8 V
3.3 V
SOT-223
www.st.com
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LD1117ADT-TR Summary of contents

Page 1

... Only chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± °C. = 1.25 REF Order codes DPAK TO-220 LD1117ADT12TR LD1117ADT18TR LD1117ADT33TR LD1117AV33 LD1117ADT-TR Doc ID 7194 Rev 23 TO-220 SOT-223 DPAK Output voltage 1.2 V 1.8 V 3.3 V Adjustable from 1. 1/24 www.st.com ...

Page 2

Contents Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX 1 Diagram Figure 1. Block diagram Doc ID 7194 Rev 23 Diagram 3/24 ...

Page 4

Pin configuration 2 Pin configuration Figure 2. Pin connections (top view) SOT-223 Note: The TAB is connected to the V 4/24 LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX TO-220 . OUT Doc ID 7194 Rev 23 DPAK ...

Page 5

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX 3 Maximum ratings Table 2. Absolute maximum ratings Symbol V DC input voltage IN P Power dissipation D T Storage temperature range STG T Operating junction temperature range OP Note: Absolute maximum ratings are those values ...

Page 6

Schematic application 4 Schematic application Figure 3. Application circuit (for other fixed output voltages) 6/24 LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX Doc ID 7194 Rev 23 ...

Page 7

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX 5 Electrical characteristics Refer to the test circuits, T GND, unless otherwise specified. Table 4. Electrical characteristics of LD1117A#12 Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation ...

Page 8

Electrical characteristics Refer to the test circuits, T specified. Table 5. Electrical characteristics of LD1117A#18 Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O ΔV Temperature stability O ΔV Long term ...

Page 9

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX Refer to the test circuits, T specified. Table 6. Electrical characteristics of LD1117A#33 Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O ΔV Temperature stability O ΔV ...

Page 10

Electrical characteristics Refer to the test circuits, T specified. Table 7. Electrical characteristics of LD1117A (Adjustable) Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O ΔV Temperature stability O ΔV Long ...

Page 11

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX 6 Typical application Figure 4. Negative supply Figure 5. Active terminator for SCSI-2 bus Figure 6. Circuit for increasing output voltage Doc ID 7194 Rev 23 Typical application 11/24 ...

Page 12

Typical application Figure 7. Voltage regulator with reference Figure 8. Battery backed-up regulated supply 12/24 LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX Doc ID 7194 Rev 23 ...

Page 13

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX Figure 9. Post-regulated dual supply Doc ID 7194 Rev 23 Typical application 13/24 ...

Page 14

LD1117A adjustable: application note LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX 7 LD1117A adjustable: application note The LD1117A adjustable has a thermal stabilized 1.25 ± 0.012 V reference voltage between the OUT and ADJ pins normally fixed to 120 Ω. From ...

Page 15

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX 8 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are ...

Page 16

Package mechanical data Figure 12. Drawing dimension TO-220 (type STD-ST Dual Gauge) Note: 1 Maximum resin gate protrusion: 0.5 mm. 2 Resin gate position is accepted in each of the two positions shown on the drawing, or their symmetrical. 16/24 ...

Page 17

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX Figure 13. Drawing dimension TO-220 (type STD-ST Single Gauge) Doc ID 7194 Rev 23 Package mechanical data 8174627_B 17/24 ...

Page 18

Package mechanical data Figure 14. Drawing dimension tube for TO-220 Dual Gauge (mm.) Figure 15. Drawing dimension tube for TO-220 Single Gauge (mm.) 18/24 LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX Doc ID 7194 Rev 23 ...

Page 19

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX Dim. Min 0.02 B 0.6 B1 2.9 c 0. 3.3 H 6.7 V SOT-223 mechanical data mm. Typ. Max. 1.8 0.1 0.7 0.85 3 3.15 0.26 0.35 6.5 6.7 ...

Page 20

Package mechanical data Dim. Min. A 2.2 A1 0.9 A2 0.03 B 0.64 b4 5.2 C 0. 4 (L1 0 0° 20/24 ...

Page 21

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX Tape & reel SOT223 mechanical data Dim. Min 12 6.73 Bo 7.32 Ko 1.78 Po 3.9 P 7.9 mm. Typ. Max. Min. 330 13.0 13.2 0.504 0.795 2.362 ...

Page 22

Package mechanical data Tape & reel DPAK-PPAK mechanical data Dim. Min 12 6.80 Bo 10.40 Ko 2.55 Po 3.9 P 7.9 22/24 LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX mm. Typ. Max. 330 13.0 13.2 ...

Page 23

LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX 9 Revision history Table 9. Document revision history Date Revision 29-Sep-2004 11 12-Oct-2004 12 21-Apr-2005 13 05-Jul-2005 14 10-Feb-2006 15 20-Dec-2006 16 19-Jan-2007 17 28-May-2007 18 07-Jun-2007 19 15-Apr-2008 20 28-Jul-2009 21 05-Jul-2010 22 16-Nov-2010 23 ...

Page 24

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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