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LD29080DT15R-LD29080DT50R
800 mA fixed and adjustable output very low drop voltage regulator
November 2013 DocID10918 Rev 8 1/26
LD29080800 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
DescriptionThe 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.
Table 1. Device summary
Contents LD290802/26 DocID10918 Rev 8
Contents Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
DocID10918 Rev 8 3/26
LD29080 Diagram
1 Diagram* Only for version with inhibit function.
Figure 1. Schematic diagram for adjustable version
Figure 2. Schematic diagram for fixed version
Pin configuration LD290804/26 DocID10918 Rev 8
Pin configuration * Only for version with inhibit function.
Figure 3. Pin connections (top view)
Table 2. Pin description Not connected for fixed version. 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. Application circuit
DocID10918 Rev 8 5/26
LD29080 Maximum ratings
3 Maximum ratingsNote: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied.
Table 3. Absolute maximum ratings Above 14 V the device is automatically in shut-down.
Table 4. Thermal data
