ld1117av28 STMicroelectronics, ld1117av28 Datasheet

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ld1117av28

Manufacturer Part Number
ld1117av28
Description
Low Drop Fixed And Adjustable Positive Voltage Regulators
Manufacturer
STMicroelectronics
Datasheet
Features
Description
The LD1117A is a LOW DROP Voltage Regulator
able to provide up to 1A of Output Current,
available even in adjustable version (Vref=1.25V).
June 2007
Block diagram
Low dropout voltage
(1.15V typ. @ I
Very low quiescent current
(5 mA typ. @ 25°C)
Output current up to 1A
Fixed output voltage of: 1.2V, 1.8V, 2.5V,
2.85V, 3.3V, 5.0V
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:
– 80dB typ. at 25°C)
Temperature range: 0°C to 125°C
Low drop fixed and adjustable positive voltage regulators
OUT
= 1A, 25°C)
rel
= 1.25V)
Rev. 19
Concerning fixed versions, are offered the
following Output Voltages: 1.2V, 1.8V, 2.5V, 2.85V,
3.3V and 5.0V. The 2.85V type is ideal for SCSI-2
lines active termination. The device is supplied in:
SOT-223, DPAK, D
mount packages optimize the thermal
characteristics even offering a relevant space
saving effect. High efficiency is assured by NPN
pass transistor. Only a very common 10µF
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.
TO-220
DPAK
LD1117A series
2
PAK/A and TO-220. Surface
SOT-223
D
2
PAK/A
www.st.com
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ld1117av28 Summary of contents

Page 1

Low drop fixed and adjustable positive voltage regulators Features ■ Low dropout voltage (1.15V typ 1A, 25°C) OUT ■ Very low quiescent current (5 mA typ. @ 25°C) ■ Output current ■ Fixed output ...

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Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Pin configuration Figure 1. Pin connections (top view) SOT-223 TO-220 Note: The TAB is connected to the V DPAK OUT PAK/A 3/28 ...

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Maximum ratings Table 1. Absolute maximum ratings Symbol V DC Input Voltage IN P Power Dissipation TOT T Storage Temperature Range STG T Operating Junction Temperature Range OP Note: Absolute Maximum Ratings are those values beyond which damage to ...

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Schematic application Figure 2. Application circuit (for other fixed output voltages) 5/28 ...

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Electrical characteristics Table 3. Electrical characteristics of LD1117A#12 (refer to the test circuits, T GND, unless otherwise specified). Symbol Parameter V Output voltage O V Output voltage O ΔV Line regulation O ΔV Load regulation O ΔV Temperature stability ...

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Table 4. Electrical characteristics of LD1117A#18 (refer to the test circuits, T 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 stability O V ...

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Table 6. Electrical characteristics of LD1117A#28 (refer to the test circuits, T 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 stability O V ...

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Table 8. Electrical characteristics of LD1117#50 (refer to the test circuits, T 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 stability O V ...

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Table 9. Electrical characteristics of LD1117A (Adjustable) (refer to the test circuits, T 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 stability O ...

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Typical application Figure 3. Negative supply Figure 4. Active terminator for SCSI-2 BUS Figure 5. Circuit for increasing output voltage 11/28 ...

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Figure 6. Voltage Regulator With Reference Figure 7. Battery backed-up regulated supply 12/28 ...

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Figure 8. Post-regulated dual supply 13/28 ...

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LD1117A Adjustable: Application note The LD1117 Adjustable has a thermal stabilized 1.25±0.012V reference voltage between the OUT and ADJ pins normally fixed to 120Ω . From OUT REF I . ...

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Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...

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DIM. MIN 0.02 B 0.6 B1 2.9 c 0. 3.3 H 6.7 V 16/28 SOT-223 MECHANICAL DATA mm. TYP MAX. MIN. 1.8 0.1 0.7 0.85 23.6 3 3.15 114.2 0.26 0.35 6.5 6.7 ...

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TO-220 MECHANICAL DAT A mm. DIM. MIN. TYP A 4.40 C 1.23 D 2.40 D1 1.27 E 0.49 F 0.61 F1 1.14 F2 1.14 G 4.95 G1 2.4 H2 10.0 L2 16.4 L4 13.0 L5 2.65 L6 15.25 L7 6.2 ...

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Figure 11. DRAWING DIMENSION D 18/28 2 PAK/A (TYPE STD-ST) 7106164/E ...

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Figure 12. DRAWING DIMENSION D 2 PAK/A (TYPE WOOSEOK-SUBCON.) 7106164/E 19/28 ...

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Table 10. D PAK/A MECHANICAL DATA TYPE STD-ST DIM. MIN. A 4.40 A1 0.03 b 0.70 b1 0.80 b2 1.14 c 0.45 c2 1.23 D 8. 2.49 ...

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Figure 13. D PAK/A FOOTPRINT RECOMMENDED DATA Table 11. FOOTPRINT DATA VALUES mm. 12.20 9.75 16.90 3.50 1.60 2.54 5.08 inch. 0.480 0.384 0.665 0.138 0.063 0.100 0.200 21/28 ...

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DIM. MIN. A 2.2 A1 0.9 A2 0.03 B 0.64 b4 5.2 C 0. 4 (L1 0 0° 22/28 DPAK MECHANICAL DATA ...

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Tape & Reel SOT223 MECHANICAL DATA mm. DIM. MIN. TYP A C 12.8 13 6.73 6.83 Bo 7.32 7.42 Ko 1.78 Po 3.9 4.0 P 7.9 8.0 inch MAX. MIN. TYP. 330 13.2 0.504 ...

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Tape & Reel DPAK-PPAK MECHANICAL DATA DIM. MIN 12 6.80 Bo 10.40 Ko 2.55 Po 3.9 P 7.9 24/28 mm. TYP MAX. MIN. 330 13.0 13.2 0.504 0.795 2.362 22.4 6.90 7.00 ...

Page 25

Ta pe & Reel D PAK-P mm. DIM. MIN. TYP A C 12.8 13 10.50 10.6 Bo 15.70 15.80 Ko 4.80 4.90 Po 3.9 4.0 P 11.9 12 PAK-D PAK/A-P ...

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... Order codes SOT-223 LD1117AS12TR LD1117ADT12TR LD1117AS18TR LD1117ADT18TR LD1117AS25TR LD1117ADT25TR (1) LD1117AS28TR LD1117ADT28TR LD1117AS33TR LD1117ADT33TR (1) LD1117AS50TR LD1117ADT50TR LD1117ASTR LD1117ADT-TR 1. Available on request. 26/28 Part numbers Packages 2 DPAK D PAK/A (1) (1) LD1117AD2MTR Output voltage TO-220 (1) LD1117AV12 1.2 V LD1117AV18 1.8 V LD1117AV25 2.5 V (1) LD1117AV28 2.85 V LD1117AV33 3.3 V (1) LD1117AV50 5 V Adjustable from LD1117AV 1.25 to 15V ...

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Revision history Table 13. 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 Changes Add new Part Number #12. Mistake V max. - Table 4. O ...

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... 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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