STPS2L25U STMicroelectronics, STPS2L25U Datasheet
STPS2L25U
Specifications of STPS2L25U
STPS2L25U
Available stocks
Related parts for STPS2L25U
STPS2L25U Summary of contents
Page 1
Features ■ 2A internal switch ■ Operating input voltage from 4.4V to 36V ■ Output voltage adjustable from 1.235V to 35V ■ Low dropout operation: 100% duty cycle ■ 250kHz Internally fixed frequency ■ Voltage feedforward ■ Zero load current ...
Page 2
Contents Contents 1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
L5972D 1 Pin settings 1.1 Pin connection Figure 2. Pin connection (top view) 1.2 Pin description Table 1. Pin description N° Pin 1 OUT 2,3,6,7 GND 4 COMP VCC OUT 1 8 GND 2 7 GND 3 ...
Page 4
Electrical data 2 Electrical data 2.1 Maximum ratings Table 2. Absolute maximum ratings Symbol V Input voltage 8 Out pin DC voltage V 1 Out pin peak voltage at ∆t = 0.1µs I Maximum output current ...
Page 5
L5972D 3 Electrical characteristics Table 4. Electrical characteristics ( T Symbol Operating input V CC voltage range Mosfet on R DS(on) Resistance Maximum limiting I l current f Switching frequency s Duty cycle Dynamic characteristics (see test circuit ). V ...
Page 6
Typical characteristics 4 Typical characteristics Figure 3. Output voltage vs. junction temperature Vo (V) 3.312 Vcc = 12V 3.308 Vo = 3.3V 3.304 3.3 3.296 3.292 3.288 3.284 3.28 3.276 0 0.5 Figure 5. Line regulator Vo (V) 3.312 Vcc ...
Page 7
... C1206C221J5GAC 220pF, 5%, 50V C1206C223K5RAC 22nF, 10%, 50V 5.6K, 1%, 0.1W 0603 3.3K, 1%, 0.1W 0603 4.7K, 1%, 0.1W 0603 STPS2L25U 2A, 25V DO3316P-333 33µH, 2.1A Application circuit . cc L1 33µH VOUT=3.3V OUT STPS2L25U 5. GND R2 3.3K D03IN1438 Description Manufacturer MURATA Sanyo KEMET KEMET Neohm Neohm Neohm ST COILCRAFT C2 100µF ...
Page 8
Application circuit Figure 10. PCB layout (component side) Figure 11. PCB layout (bottom side) Figure 12. PCB layout (front side) Sideways two graphs show the T and output voltage. 8/15 versus output current in different conditions of the input J ...
Page 9
L5972D Figure 13. Junction temperature vs output current TJ(°C) 100.0 90.0 Vin=5V Tamb.=25 °C 80.0 70.0 60.0 50.0 40.0 30.0 20.0 0.2 0.4 0.6 Figure 15. Junction temperature vs output current TJ(°C) 100.0 90.0 Vin=12V 80.0 Tamb= 25°C 70.0 60.0 ...
Page 10
... Vcc 8 COMP L5972D GND 22nF 220pF R3 4.7k OUT Vcc 8 1 L5972D GND L1 D2 33uH STPS2L25U 24k M1 STN4NE03L 2.7k L1 33uH OUT 1 D1 STPS2L25U FB VOUT=-12V/0.45A 2. 100uF 24k 16V n=N1/N2 STPS2L25U VOUT=3. STPS2L25U C4 100uF 10V L5972D VOUT=12V/0.45A C4 100uF 16V VOUT1=5V 50mA C5 47uF 10V ...
Page 11
L5972D 7 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 ...
Page 12
Package mechanical data Table 6. SO-8 Mechanical data Dim ( ddd 1. Dimensions D does not include mold flash, protru-sions or gate burrs. Mold flash, potrusions or gate ...
Page 13
L5972D 8 Order codes Table 7. Order codes Part number L5972D L5972D013TR Package Packaging SO8 SO8 Tape and reel Order codes Tube 13/15 ...
Page 14
Revision history 9 Revision history Table 8. Revision history Date 02-Feb-2007 10-Apr-2007 16-Oct-2007 14/15 Revision 8 Updated Table 5 on page 7 9 Mechanical data typo 10 Updated Section 5: Application circuit on page 7 L5972D Changes ...
Page 15
... L5972D 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. ...