SNVS056J
May 2000 – June 2015
LP3961
,
LP3964
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configurations and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Short-Circuit Protection
7.3.2
ERROR Flag Operation
7.3.3
SENSE Pin
7.3.4
Dropout Voltage
7.3.5
Reverse Current Path
7.4
Device Functional Modes
7.4.1
Operation With VOUT(TARGET) + 0.35 V ≤ VIN ≤ 7 V
7.4.2
Operation With Shutdown (SD) Pin Control
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
External Capacitors
8.2.2.1.1
Input Capacitor
8.2.2.1.2
Output Capacitor
8.2.2.2
Selecting a Capacitor
8.2.2.3
Capacitor Characteristics
8.2.2.3.1
Ceramic
8.2.2.3.2
Tantalum
8.2.2.3.3
Aluminum
8.2.2.4
RFI and EMI Susceptibility
8.2.2.5
Output Adjustment
8.2.2.6
Turnon Characteristics for Output Voltages Programmed to 2.0 V or Below
8.2.2.7
Output Noise
8.2.2.8
Shutdown Operation
8.2.2.9
Maximum Output Current Capability
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.3
Heatsinking TO-220 Packages
11
Device and Documentation Support
11.1
Related Links
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
KTT|5
MPSF007E
NDC|5
MPDS385
散热焊盘机械数据 (封装 | 引脚)
KTT|5
PPTD277
订购信息
snvs056j_oa
snvs056j_pm
5 Pin Configurations and Functions
SOT-223 Package
5-Pin NDC
Top View
TO-220 Package (LP3964)
5-Pin NDH
Top View
SFM/TO-263 Package
5-Pin KTT
Top View
Pin Functions
PIN
I/O
DESCRIPTION
NAME
NO.
LP3961
LP3964
SOT-223
TO-220
SFM/TO-263
ERROR
4
—
—
O
ERROR
flag
GND
5
5
3
—
Ground
IN
2
2
2
I
Input supply
OUT
3
3
4
O
Output voltage
SD
1
1
1
I
Shutdown
SENSE/ADJ
—
4
5
I
Remote sense pin or output adjust pin