SLVSCF8 July 2014 TPS54060-EP
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Simplified Schematic
- 5 Revision History
- 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 PWM Control
- 8.3.2 Slope Compensation Output Current
- 8.3.3 Low-Dropout Operation and Bootstrap Voltage (Boot)
- 8.3.4 Error Amplifier
- 8.3.5 Voltage Reference
- 8.3.6 Adjusting the Output Voltage
- 8.3.7 Enable and Adjusting UVLO
- 8.3.8 Slow Start/Tracking Pin (SS/TR)
- 8.3.9 Overload Recovery Circuit
- 8.3.10 Sequencing
- 8.3.11 Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
- 8.3.12 Overcurrent Protection and Frequency Shift
- 8.3.13 Selecting the Switching Frequency
- 8.3.14 How to Interface to RT/CLK Pin
- 8.3.15 Power Good (PWRGD Pin)
- 8.3.16 Overvoltage Transient Protection (OVTP)
- 8.3.17 Thermal Shutdown
- 8.3.18 Small Signal Model for Loop Response
- 8.3.19 Simple Small Signal Model for Peak Current Mode Control
- 8.3.20 Small Signal Model for Frequency Compensation
- 8.4 Device Functional Modes
-
9 Application and Implementation
- 9.1 Application Information
- 9.2
Typical Application
- 9.2.1 Design Requirements
- 9.2.2
Detailed Design Procedure
- 9.2.2.1 Selecting the Switching Frequency
- 9.2.2.2 Output Inductor Selection (LO)
- 9.2.2.3 Output Capacitor
- 9.2.2.4 Catch Diode
- 9.2.2.5 Input Capacitor
- 9.2.2.6 Slow Start Capacitor
- 9.2.2.7 Bootstrap Capacitor Selection
- 9.2.2.8 UVLO Set Point
- 9.2.2.9 Output Voltage and Feedback Resistors Selection
- 9.2.2.10 Compensation
- 9.2.3 Application Curves
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
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）
- DGQ|10
サーマルパッド・メカニカル・データ
- DGQ|10
発注情報
1 Features
- 3.5- to 60-V Input Voltage Range
- 200-mΩ High-Side MOSFET
- High Efficiency at Light Loads With a Pulse Skipping Eco-Mode™
- 116-μA Operating Quiescent Current
- 1.3-μA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Adjustable Slow Start/Sequencing
- UV and OV Power Good Output
- Adjustable UVLO Voltage and Hysteresis
- 0.8-V Internal Voltage Reference
- MSOP10 Package With PowerPAD™
- Supported by SwitcherPro™ Software Tool
(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html) - Supports Defense, Aerospace, and Medical Applications
- Controlled Baseline
- One Assembly and Test Site
- One Fabrication Site
- Available in Military (–55°C to 125°C) Temperature Range
- Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
2 Applications
- 12-V, 24-V, and 48-V Industrial and Commercial Low Power Systems
- Aftermarket Auto Accessories: Video, GPS, Entertainment
3 Description
The TPS54060 device is a 60-V, 0.5-A, step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse skip mode reduces the no load, regulated output supply current to 116 μA. Using the enable pin, shutdown supply current is reduced to
1.3 μA when the enable pin is low.
Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open-drain power good signal indicates the output is within 93% to 107% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.
The TPS54060 is available in a 10-pin thermally-enhanced MSOP10 PowerPAD package.
Device Information(1)
| ORDER NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| TPS54060MDGQTEP | HVSSOP (10) | 3.00 mm × 3.00 mm |
- For all available packages, see the orderable addendum at the end of the data sheet.
4 Simplified Schematic
Efficiency vs Load Current
