ZHCSF93E December 2015 – August 2020 LMR23630
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Fixed Frequency Peak Current Mode Control
- 8.3.2 Adjustable Frequency
- 8.3.3 Adjustable Output Voltage
- 8.3.4 Enable/Sync
- 8.3.5 VCC, UVLO
- 8.3.6 Minimum ON-time, Minimum OFF-time and Frequency Foldback at Dropout Conditions
- 8.3.7 Power Good (PGOOD)
- 8.3.8 Internal Compensation and CFF
- 8.3.9 Bootstrap Voltage (BOOT)
- 8.3.10 Overcurrent and Short-Circuit Protection
- 8.3.11 Thermal Shutdown
- 8.4 Device Functional Modes
-
9 Application and Implementation
- 9.1 Application Information
- 9.2
Typical Applications
- 9.2.1 Design Requirements
- 9.2.2
Detailed Design Procedure
- 9.2.2.1 Custom Design With WEBENCH® Tools
- 9.2.2.2 Output Voltage Setpoint
- 9.2.2.3 Switching Frequency
- 9.2.2.4 Inductor Selection
- 9.2.2.5 Output Capacitor Selection
- 9.2.2.6 Feed-Forward Capacitor
- 9.2.2.7 Input Capacitor Selection
- 9.2.2.8 Bootstrap Capacitor Selection
- 9.2.2.9 VCC Capacitor Selection
- 9.2.2.10 Undervoltage Lockout Setpoint
- 9.2.3 Application Curves
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
- DRR|12
- DDA|8
散热焊盘机械数据 (封装 | 引脚)
订购信息
9.2.3 Application Curves
Unless otherwise specified the following conditions apply: VIN
= 12 V, fSW = 400 kHz, L = 8.2 µH, COUT = 150 µF,
TA = 25 °C.
Unless otherwise specified the following conditions apply: VIN
= 12 V, fSW = 400 kHz, L = 8.2 µH, COUT = 150 µF,
TA = 25 °C.
Figure 9-2 CCM Mode. Unless otherwise specified the following conditions apply: VIN
= 12 V, fSW = 400 kHz, L = 8.2 µH, COUT = 150 µF,
TA = 25 °C.
| VOUT = 5 V | IOUT = 3 A | fSW = 400 kHz |
| VOUT = 5 V | IOUT = 0 mA | fSW = 400 kHz |
| VIN = 12 V | VOUT = 5 V | IOUT = 2 A |
| VIN = 12 V | IOUT = 0.3 A to 3 A, 100 mA / μs | |
| VOUT = 5 V | ||
| VOUT = 5 V | IOUT = 1 A to short | |
| VOUT = 5 V | IOUT = 150 mA | fSW = 400 kHz |
| VOUT = 5 V | IOUT = 0 mA | fSW = 400 kHz |
| VIN = 12 V | VOUT = 5 V | IOUT = 2 A |
| VOUT = 5 V | VIN = 7 V to 36 V, 2 V / μs | |
| IOUT = 3 A | ||
| VOUT = 5 V | IOUT = short to 1 A | |