LD29300 series
3A, Very low drop voltage regulators
Features
■
■
■
■
■
Very low dropout voltage (Typ. 0.4 at 3A)
Guaranteed output current up to 3A
Fixed voltage with ±1% tolerance at 25°C
Internal current and thermal limit
Logic controlled electronic shutdown available
in PPAK
TO-220
D
2
PAK
Description
The LD29300 is a high current, high accuracy,
low-dropout voltage regulator series. These
regulators feature 400mV dropout voltage and
very low ground current. Designed for high
current loads, these devices are also used in
lower current, extremely low dropout-critical
systems, where their tiny dropout voltage and
ground current values are important attributes.
Typical applications are in Power supply switching
P
2
PAK/A
P
2
PAK
D
2
PAK/A
post regulation, Series power supply for monitors,
Series power supply for VCRs and TVs,
Computer Systems and Battery powered
systems.
Order codes
Part numbers
Packages
TO-220
LD29300V15
LD29300D2T18R
LD29300V25
LD29300V33
LD29300V50
LD29300D2T50R
(1)
LD29300D2M18R
LD29300D2M25R
LD29300D2M33R
LD29300D2M50R
LD29300P2T33R
LD29300P2T50R
LD29300P2T80R
D
2
PAK
D
2
PAK/A
P
2
PAK
(1)
LD29300P2T15R
LD29300P2T18R
P
2
PAK/A
LD29300P2M15R
LD29300P2M18R
LD29300P2M25R
LD29300P2M33R
LD29300P2M50R
LD29300P2M80R
1.5 V
1.8 V
2.5 V
3.3 V
5.0 V
8.0 V
9.0 V
ADJ
Output
voltage
LD29300V90
(1)
LD29300D2T90R
(1)
LD29300D2M90R
(1)
LD29300P2T90R LD29300P2M90R
(1)
LD29300P2TR
1. Available on request
LD29300P2MR
(1)
June 2007
Rev. 10
1/26
www.st.com
26
LD29300 series
Contents
1
2
3
4
5
6
7
8
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2/26
LD29150
Diagram
1
Figure 1.
Diagram
Schematic diagram for adjustable version
Figure 2.
Schematic diagram for fixed version
* Only for version with inhibit function.
3/26
京公网安备 11010802033920号
EEWORLD
