LD39150XX STMicroelectronics, LD39150XX Datasheet

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LD39150XX

Manufacturer Part Number
LD39150XX
Description
Ultra low drop BICMOS voltage regulator
Manufacturer
STMicroelectronics
Datasheet

Specifications of LD39150XX

Fixed And Adj Output Voltages
1.22V, 1.8V, 2.5V, 3.3V, ADJ.
Temperature Range
-40 to 125°C
Features
Typical application
Table 1.
1. Available on request.
January 2009
1.5 A guaranteed output current
Ultra low dropout voltage (200 mV typ. @ 1.5 A
load, 40 mV typ. @ 300 mA load)
Very low quiescent current (1 mA typ. @ 1.5 A
load, 1 µA max @ 25 °C in off mode)
Logic-controlled electronic shutdown
Current and thermal internal limit
±
Fixed and ADJ output voltages: 1.22 V, 1.8 V,
2.5 V, 3.3 V, ADJ. (see
Temperature range: -40 to 125 °C
Fast dynamic response to line and load
changes
Stable with ceramic capacitor (see
Section 7.2
Available in PPAK, DPAK and DFN6 (3x3 mm)
Microprocessor power supply
DSPs power supply
Post regulators for switching suppliers
High efficiency linear regulator
Part numbers
LD39150XX12
LD39150XX18
LD39150XX25
LD39150XX33
LD39150XX
1.5 % output voltage tolerance @ 25 °C
Device summary
and
Section
LD39150DT12-R
LD39150DT18-R
LD39150DT25-R
LD39150DT33-R
DPAK (T&R)
Table
7.3)
1)
Section
Ultra low drop BiCMOS voltage regulator
LD39150PT18-R
LD39150PT25-R
LD39150PT33-R
LD39150PT-R
Order codes
PPAK (T&R)
7.1,
Rev 2
Description
The LD39150xx is a fast ultra low drop linear
regulator which operates from 2.5 V to 6 V input
supply.
A wide range of output options are available. The
low drop voltage, low noise, and ultra low
quiescent current make it suitable for low voltage
microprocessor and memory applications. The
device is developed on a BiCMOS process which
allows low quiescent current operation
independently of output load current.
PPAK
LD39150PU12R
LD39150PU18R
LD39150PU25R
LD39150PU33R
LD39150PU-R
DFN
DFN6 (3x3 mm)
(1)
LD39150xx
ADJ from 1.22 to 5.0 V
Output voltages
DPAK
1.22 V
1.8 V
2.5 V
3.3 V
www.st.com
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LD39150XX Summary of contents

Page 1

... LD39150XX 1. Available on request. January 2009 Ultra low drop BiCMOS voltage regulator 1) Description The LD39150xx is a fast ultra low drop linear Section 7.1, regulator which operates from 2 input supply. A wide range of output options are available. The low drop voltage, low noise, and ultra low quiescent current make it suitable for low voltage microprocessor and memory applications ...

Page 2

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

Page 3

Diagram Figure 1. Block diagram (*) Not present on ADJ versions. 3/19 ...

Page 4

Pin configuration Figure 2. Pin connections (top view for DPAK and PPAK, bottom view for DFN) DFN6 (3x3 mm) Table 2. Pin description Pin n° SYMBOL DFN PPAK DPAK V /N.C. SENSE 5 5 ADJ ...

Page 5

... C capacitors must be placed as close as possible to the IC pins Figure 3. LD39150xx fixed version with inhibit Note: Inhibit pin is not internally pulled down/up then it must not be left floating. Disable the device when connected to GND positive voltage less than 0.3 V. Figure 4. LD39150xx adjustable version Note: Set R2 as close as possible to 4 ...

Page 6

... Figure 5. LD39150xx DPAK Figure 6. Timing diagram 6/19 ...

Page 7

Maximum ratings Table 3. Absolute maximum ratings Symbol V DC input voltage I V INHIBIT input voltage INH V DC output voltage O V ADJ pin voltage ADJ I Output current O P Power dissipation D T Storage temperature ...

Page 8

Electrical characteristics Table 5. Electrical characteristics ( ° specified) Symbol Parameter V Operating input voltage I V Output voltage tolerance O V Reference voltage REF Output voltage LINE ΔV O regulation ...

Page 9

Typical performance characteristics ( ° specified) Figure 7. Output voltage vs temperature Figure 9. Dropout voltage vs output current Figure 11. Quiescent current vs temperature + ...

Page 10

Figure 13. Short circuit current vs temperature Figure 14. Output voltage vs input voltage Figure 15. Stability region vs C kHz) Figure 17. Load transient V = 3.5V 10mA to 1.5A 1µ ...

Page 11

... Input capacitor An input capacitor whose minimum value is 1 µF is required with the LD39150xx (amount of capacitance can be increased without limit). This capacitor must be located a distance of not more than 1cm from the input pin of the device and returned to a clean analog ground. Any good quality ceramic, tantalum or film capacitors can be used for this capacitor ...

Page 12

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: ECOPACK® ...

Page 13

PPAK mechanical data mm. Dim. Min. Typ. A 2.2 A1 0.9 A2 0.03 B 0.4 B2 5.2 C 0. 5.1 E 6.4 E1 4.7 e 1.27 G 4.9 G1 2.38 H 9.35 L2 0.8 L4 ...

Page 14

Dim. Min. A 2.2 A1 0.9 A2 0.03 B 0.64 b4 5.2 C 0. 4 (L1 0 0° 14/19 DPAK mechanical data ...

Page 15

DFN6 (3x3 mm) mechanical data mm. Dim. Min. Typ. A 0.80 0. 0.02 A3 0.20 b 0.23 0.30 D 2.90 3.00 D2 2.23 2.38 E 2.90 3.00 E2 1.50 1.65 e 0.95 L 0.30 0.40 inch. Max. Min. ...

Page 16

Tape & reel DPAK-PPAK mechanical data Dim. Min 12 6.80 Bo 10.40 Ko 2.55 Po 3.9 P 7.9 16/19 mm. Typ. Max. Min. 330 13.0 13.2 0.504 0.795 2.362 22.4 6.90 7.00 ...

Page 17

Tape & reel QFNxx/DFNxx (3x3) mechanical data mm. Dim. Min. Typ 12 3.3 Bo 3 Max. Min. 180 13.2 0.504 0.795 2.362 14 inch. Typ. Max. ...

Page 18

Revision history Table 6. Document revision history Date Revision 26-Jan-2007 1 12-Jan-2009 2 18/19 Changes Initial release. Removed: package DFN8 (4x4 mm) and added package DFN6 (3x3 mm). ...

Page 19

... 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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