Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsVoltage RegulatorsLD29080PT33R

Table Of Contents

This is information on a product in full production.

November 2013 DocID10918 Rev 8 1/26

LD29080

800 mA fixed and adjustable output very low drop voltage regulator

Datasheet

production data

Features

• Very low dropout voltage (typ. 0.4 at 800 mA)

• Guaranteed output current up to 800 mA

• Fixed and adjustable output voltage (± 1 % at

25 °C)

• Internal current and thermal limit

• Logic controlled electronic shutdown

Description

The LD29080 is a medium current, high accuracy,

low-dropout voltage regulators series. These

regulators feature 400 mV dropout voltage and

very low ground current. Designed for medium

current loads, these devices also find applications

in lower current, extremely low dropout-critical

systems, where their tiny dropout voltage and

ground current values are important attributes.

Typical application are in power supply switching

post regulation, series power supply for monitors,

series power supply for VCRs and TVs, computer

systems and battery powered systems.

PPAK DPAK

SOT223

Table 1. Device summary

Order codes

Output voltages

DPAK (tape and reel) PPAK (tape and reel) SOT223

LD29080DT15R LD29080PT15R 1.5 V

LD29080DT18R LD29080PT18R 1.8 V

LD29080DT25R LD29080PT25R 2.5 V

LD29080DT33R LD29080PT33R LD29080S33R 3.3 V

LD29080DT50R LD29080PT50R 5.0 V

LD29080DT90R LD29080PT90R 9.0 V

LD29080PTR ADJ

www.st.com

Summary of content (26 pages)

PAGE 1
LD29080 800 mA fixed and adjustable output very low drop voltage regulator Datasheet - production data • Fixed and adjustable output voltage (± 1 % at 25 °C) • Internal current and thermal limit • Logic controlled electronic shutdown PPAK Description DPAK SOT223 Features • Very low dropout voltage (typ. 0.4 at 800 mA) • Guaranteed output current up to 800 mA The LD29080 is a medium current, high accuracy, low-dropout voltage regulators series.
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Contents LD29080 Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical characteristics . . . . . . .
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LD29080 1 Diagram Diagram Figure 1. Schematic diagram for adjustable version Figure 2. Schematic diagram for fixed version * Only for version with inhibit function.
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Pin configuration 2 LD29080 Pin configuration Figure 3. Pin connections (top view) 5 3 4 3 GND GND 2 GND 2 1 1 CS17230 1 2 3 CS17240 AM09358v1 PPAK DPAK SOT223 Table 2. Pin description Symbol PPAK DPAK SOT223 VI 2 1 1 GND 3 2 2 VO 4 3 3 ADJ/N.C. (1) 5 INHIBIT (2) 1 1. Not connected for fixed version. 2. Not internally pulled up; in order to assure the operating condition (device in ON mode), it must be connected to a positive voltage higher than 2 V. Figure 4.
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LD29080 3 Maximum ratings Maximum ratings Table 3. Absolute maximum ratings Symbol VI VINH 1. Parameter Value DC input voltage 30 Inhibit input voltage Unit (1) V 14 V IO Output current Internally limited mA PD Power dissipation Internally limited mW TSTG Storage temperature range - 55 to 150 °C TOP Operating temperature range - 40 to 125 °C Above 14 V the device is automatically in shut-down.
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Electrical characteristics 4 LD29080 Electrical characteristics IO = 10 mA, (Note 4) TJ = 25 °C, VI = 3.5 V, VINH = 2V, CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 5. Electrical characteristics of LD29080#15 Symbol Parameter Test conditions Min. Typ. Unit 13 V VI Operating input voltage IO = 10 mA to 800 mA VO Output voltage IO = 10 mA to 800 mA, VI = 3 to 7 V TJ = -40 to 125 °C ΔVO Load regulation IO = 10 mA to 800 mA 0.2 1.0 % ΔVO Line regulation VI = 3 to 13 V 0.
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LD29080 Electrical characteristics IO = 10 mA, (Note 4) TJ = 25 °C, VI = 3.5 V, VINH = 2 V, CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 6. Electrical characteristics of LD29080#18 Symbol Parameter Test conditions Min. Typ. Unit 13 V VI Operating input voltage IO = 10 mA to 800 mA VO Output voltage IO = 10 mA to 800 mA, VI = 3 to 7.3 V TJ = -40 to 125 °C ΔVO Load regulation IO = 10 mA to 800 mA 0.2 1.0 % ΔVO Line regulation VI = 3 to 13 V 0.06 0.
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Electrical characteristics LD29080 IO = 10 mA, (Note 4) TJ = 25 °C, VI = 4.5 V, VINH = 2 V, CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 7. Electrical characteristics of LD29080#25 Symbol Parameter Test conditions Min. Typ. Max. Unit 13 V VI Operating input voltage IO = 10 mA to 800 mA VO Output voltage IO = 10 mA to 800 mA, VI = 3.5 to 8 V TJ = -40 to 125 °C ΔVO Load regulation IO = 10 mA to 800 mA 0.2 1.0 % ΔVO Line regulation VI = 3.5 to 13 V 0.06 0.
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LD29080 Electrical characteristics IO = 10 mA, (Note 4) TJ = 25 °C, VI = 5.3 V, VINH = 2 V, CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 8. Electrical characteristics of LD29080#33 Symbol Parameter Test conditions Min. Typ. Max. Unit 13 V VI Operating input voltage IO = 10mA to 800mA VO Output voltage IO = 10 mA to 800 mA, VI = 4.3 to 8.8 V TJ = -40 to 125 °C ΔVO Load regulation IO = 10 mA to 800 mA 0.2 1.0 % ΔVO Line regulation VI = 4.3 to 13 V 0.06 0.
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Electrical characteristics LD29080 IO = 10 mA, (Note 4) TJ = 25 °C, VI = 7 V, VINH = 2 V, CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 9. Electrical characteristics of LD29080#50 Symbol Parameter Test conditions Min. Typ. Max. Unit 13 V VI Operating input voltage IO = 10 mA to 800 mA VO Output voltage IO = 10 mA to 800 mA, VI = 6 to 10.5 V TJ = -40 to 125 °C ΔVO Load regulation IO = 10 mA to 800 mA 0.2 1.0 % ΔVO Line regulation VI = 6 to 13 V 0.06 0.
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LD29080 Electrical characteristics IO = 10 mA, (Note 4) TJ = 25 °C, VI = 10 V, VINH = 2 V, CI = 330 nF, CO = 10 µF, unless otherwise specified) Table 10. Electrical characteristics of LD29080#80 Symbol Parameter Test conditions Min. Typ. Max. Unit 13 V VI Operating input voltage IO = 10 mA to 800 mA VO Output voltage IO = 10 mA to 800 mA, VI = 9 to 13 V TJ = -40 to 125 °C ΔVO Load regulation IO = 10 mA to 800 mA 0.2 1.0 % ΔVO Line regulation VI = 9 to 13 V 0.06 0.
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Electrical characteristics LD29080 IO = 10 mA, (Note 4) TJ = 25 °C, VI = 11 V, VINH = 2 V, CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 11. Electrical characteristics of LD29080#90 Symbol Parameter Test conditions Min. Typ. Max. Unit 13 V VI Operating input voltage IO = 10 mA to 800 mA VO Output voltage IO = 10 mA to 800 mA, VI = 9 to 13 V TJ = -40 to 125 °C ΔVO Load regulation IO = 10 mA to 800 mA 0.2 1.0 % ΔVO Line regulation VI = 10 to 13 V 0.06 0.
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LD29080 Electrical characteristics IO = 10 mA, (Note 4) TJ = 25 °C, VI = 10 V, VINH = 2 V, CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 12. Electrical characteristics of LD29080#ADJ Symbol Parameter Test conditions Min. Typ. Unit 13 V Operating input voltage IO = 10 mA to 800 mA ΔVO Load regulation IO = 10 mA to 800 mA 0.2 1.0 % ΔVO Line regulation VI = 2.5 to 13 V, IO = 10 mA 0.06 0.5 % 1.2423 Reference voltage IO = 10 mA to 800 mA, VI = 2.5 to 6.73 V 1.
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Typical characteristics 5 LD29080 Typical characteristics Figure 5. Output voltage vs. temperature Figure 6. Reference voltage vs. temperature Figure 7. Dropout voltage vs. temperature Figure 8. Dropout voltage vs. output current Figure 9. Quiescent current vs. output current Figure 10. Quiescent current vs.
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LD29080 Typical characteristics Figure 11. Quiescent current vs. supply voltage Figure 12. Quiescent current vs. temperature (Io = 800 mA) Figure 13. Short circuit current vs. temperature Figure 14. Adjust pin current vs. temperature Figure 15. Supply voltage rejection vs. temperature Figure 16. Output voltage vs.
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Typical characteristics LD29080 Figure 17. Stability vs. CO Figure 18. Line transient VI = 3.5 to 13 V, IO = 10 mA, VO = 1.5 V Figure 19. Load transient VI = 3.5 V, IO = 10 mA to 0.8 A, VO = 1.
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LD29080 6 Package mechanical data 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 available at: www.st.com. ECOPACK® is an ST trademark. Table 13. PPAK mechanical data mm Dim. Min. Typ. Max. A 2.2 2.4 A1 0.9 1.1 A2 0.03 0.23 B 0.4 0.6 B2 5.2 5.4 C 0.45 0.6 C2 0.48 0.6 D 6 6.
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Package mechanical data LD29080 Figure 20.
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LD29080 Package mechanical data Table 14. DPAK mechanical data mm Dim. Min. Typ. Max. A 2.20 2.40 A1 0.90 1.10 A2 0.03 0.23 b 0.64 0.90 b4 5.20 5.40 c 0.45 0.60 c2 0.48 0.60 D 6.00 6.20 D1 E 5.10 6.40 6.60 E1 4.70 e 2.28 e1 4.40 4.60 H 9.35 10.10 L 1.00 1.50 (L1) 2.80 L2 0.80 L4 0.60 1.00 R V2 0.
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Package mechanical data LD29080 Figure 21.
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LD29080 Package mechanical data Figure 22. DPAK footprint (a) Footprint_REV_K a.
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Package mechanical data LD29080 Table 15. SOT-223 mechanical data mm Dim. Min. Typ. A Max. 1.80 A1 0.02 0.1 B 0.60 0.70 0.85 B1 2.90 3.00 3.15 c 0.24 0.26 0.35 D 6.30 6.50 6.70 e 2.30 e1 4.60 E 3.30 3.50 3.70 H 6.70 7.00 7.30 V 10° Figure 23.
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LD29080 7 Packaging mechanical data Packaging mechanical data Table 16. PPAK and DPAK tape and reel mechanical data Tape Reel mm mm Dim. Dim. Min. Max. A0 6.8 7 A B0 10.4 10.6 B 1.5 12.1 C 12.8 1.6 D 20.2 G 16.4 50 B1 Min. Max. 330 13.2 D 1.5 D1 1.5 E 1.65 1.85 N F 7.4 7.6 T K0 2.55 2.75 P0 3.9 4.1 Base qty. 2500 P1 7.9 8.1 Bulk qty. 2500 P2 1.9 2.1 R 40 T 0.25 0.35 W 15.7 16.3 DocID10918 Rev 8 18.4 22.
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Packaging mechanical data LD29080 Figure 24. Tape for PPAK and DPAK 10 pitches cumulative tolerance on tape +/- 0.2 mm T P0 Top cover tape P2 D E F B1 W K0 B0 For machine ref. only including draft and radii concentric around B0 A0 P1 D1 User direction of feed R Bending radius User direction of feed AM08852v1 Figure 25. Reel for PPAK and DPAK T REEL DIMENSIONS 40mm min. Access hole At slot location B D C N A Full radius Tape slot in core for tape start 25 mm min.
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LD29080 8 Revision history Revision history Table 17. Document revision history Date Revision 15-Oct-2004 1 First release. 20-Oct-2005 2 Order codes updated. 14-May-2007 3 Order codes updated. 26-Jan-2009 4 Modified: eN value in Table 9 on page 10. 22-Feb-2011 5 Added: new order code Table 1 on page 1 and mechanical data. 12-Jan-2012 6 Modified: RthJA and RthJC value for SOT223 Table 4 on page 5. 08-May-2012 7 Modified: pin connections for PPAK, DPAK and SOT223 Figure 3 on page 4.
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LD29080 Please Read Carefully: 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.