JAJSGR0F
December 2010 – December 2018
TPS51916
PRODUCTION DATA.
1
特長
2
アプリケーション
3
概要
アプリケーション概略
4
改訂履歴
5
概要(続き)
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
VDDQ Switch Mode Power Supply Control
8.3.2
VREF and REFIN, VDDQ Output Voltage
8.3.3
Soft-Start and Powergood
8.3.4
Power State Control
8.3.5
Discharge Control
8.3.6
VTT and VTTREF
8.3.7
VDDQ Overvoltage and Undervoltage Protection
8.3.8
VDDQ Out-of-Bound Operation
8.3.9
VDDQ Overcurrent Protection
8.3.10
VTT Overcurrent Protection
8.3.11
V5IN Undervoltage Lockout Protection
8.3.12
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
MODE Pin Configuration
8.4.2
D-CAP™ Mode
8.5
D-CAP2™ Mode Operation
9
Application and Implementation
9.1
Application Information
9.1.1
DDR3, D-CAP™ 400-kHz Application with Tracking Discharge
9.1.1.1
Design Requirements
9.1.1.2
Detailed Design Procedure
9.1.1.2.1
1. Determine the value of R1 AND R2
9.1.1.2.2
2. Choose the inductor
9.1.1.2.3
3. Choose the OCL setting resistance, RTRIP
9.1.1.2.4
Choose the output capacitors
9.1.1.3
Application Curves
9.1.2
DDR3, DCAP-2 500-kHz Application, with Tracking Discharge
9.1.2.1
Design Requirements
9.1.2.2
Detailed Design Procedure
9.1.2.2.1
Select Mode and Switching Frequency
9.1.2.2.2
Determine output capacitance
9.1.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
デバイスおよびドキュメントのサポート
12.1
ドキュメントの更新通知を受け取る方法
12.2
コミュニティ・リソース
12.3
商標
12.4
静電気放電に関する注意事項
12.5
Glossary
13
メカニカル、パッケージ、および注文情報
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
RUK|20
MPQF220D
サーマルパッド・メカニカル・データ
RUK|20
QFND191D
発注情報
jajsgr0f_oa
9.1.2.3
Application Curves
DCAP2 Mode
V
IN
= 12 V
S3 = ON
V
VDDQ
= 1.5 V
I
OUT
= 10 A
Figure 44.
S5 Turn-ON
DCAP2 Mode
V
IN
= 12 V
V
VDDQ
= 1.5 V
I
OUT
= 20 A
Figure 46.
Output Voltage Ripple
DCAP2 Mode
V
IN
= 12 V
S3 = ON
V
VDDQ
= 1.5 V
I
OUT
= 10 A
Figure 45.
Soft-Start Turn-OFF