pip250m NXP Semiconductors, pip250m Datasheet - Page 19

• Manufacturer Part Number: pip250m
• Description: Pip250m Integrated Buck Converter
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Contents
1
2
3
4
5
6
6.1
6.2
7
7.1
7.1.1
7.1.2
7.1.3
7.1.4
7.1.5
7.1.6
7.1.7
7.2
7.2.1
7.2.2
7.2.3
7.2.4
7.2.5
7.2.6
8
9
10
11
12
13
14
14.1
14.2
15
15.1
15.2
16
17
18
19
© Koninklijke Philips Electronics N.V. 2003.
Printed in The Netherlands
All rights are reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner.
The information presented in this document does not form part of any quotation or
contract, is believed to be accurate and reliable and may be changed without notice. No
liability will be accepted by the publisher for any consequence of its use. Publication
thereof does not convey nor imply any license under patent- or other industrial or
intellectual property rights.
Date of release: 21 February 2003
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
Functional description . . . . . . . . . . . . . . . . . . . 4
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Thermal characteristics. . . . . . . . . . . . . . . . . . . 9
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Application information. . . . . . . . . . . . . . . . . . 11
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 13
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 17
Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 18
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Output stage supply (V
Output voltage (VO) . . . . . . . . . . . . . . . . . . . . . 4
Control circuit supply (V
Bootstrap capacitor connection (CB) . . . . . . . . 4
Voltage feedback pin (FB). . . . . . . . . . . . . . . . . 4
Current limit set and enable
Sense connection for current limit (PHASE) . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Single supply operation . . . . . . . . . . . . . . . . . . 5
Regulated output voltage . . . . . . . . . . . . . . . . . 5
Power on reset . . . . . . . . . . . . . . . . . . . . . . . . . 5
Soft start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Overcurrent protection . . . . . . . . . . . . . . . . . . . 6
Undervoltage and overvoltage protection . . . . . 7
Introduction to soldering HVQFN packages . . 14
Rework guidelines . . . . . . . . . . . . . . . . . . . . . 15
PCB design guidelines . . . . . . . . . . . . . . . . . . 15
Solder paste printing. . . . . . . . . . . . . . . . . . . . 16
input (OCSET/ENABLE) . . . . . . . . . . . . . . . . . 4
Document order number: 9397 750 10904
DDO
DDC
, V
, V
SSO
SSC
) . . . . . . . . . . 4
) . . . . . . . . . . 4
Integrated buck converter
PIP250M