TPS62135

Name: TPS62135
Brand: TI
SKU: TPS62135
Price: 0.763 USD

現行

採用 2x3QFN 封裝且具 1% 精確度和 PFM/強制 PWM 的 3-17V 4.0A 降壓轉換器

立即訂購

產品規格表

document-pdfAcrobat TPS62135, TPS621351 High Accuracy 3-V to 17-V 4-A Step-Down Converters with DCS-Control datasheet (Rev. B) (英文) PDF | HTML

TPS62135

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck

Iout (max) (A)

4

Vin (max) (V)

17

Vin (min) (V)

3

Vout (max) (V)

12

Vout (min) (V)

0.8

Features

Enable, Light Load Efficiency, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, VID Interface

Control mode

Constant on-time (COT), DCS-Control

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000018

Duty cycle (max) (%)

100

Rating

Catalog

Topology

Buck

Iout (max) (A)

4

Vin (max) (V)

17

Vin (min) (V)

3

Vout (max) (V)

12

Vout (min) (V)

0.8

Features

Enable, Light Load Efficiency, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, VID Interface

Control mode

Constant on-time (COT), DCS-Control

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000018

Duty cycle (max) (%)

100

VQFN-HR (RGX)

11

6 mm² 3 x 2

Output Voltage Accuracy ± 1% (PWM mode)
Input Voltage Range: 3 V to 17 V
Quiescent Current 18 µA Typ
Output Voltage from 0.8 V to 12 V
Adjustable Soft-Start
Forced PWM or PWM/PFM operation
Typical switching frequency of 2.5MHz in forced PWM
Precise ENABLE input allows
- User-Defined Undervoltage Lockout
- Exact Sequencing
100% Duty Cycle Mode
Automatic Efficiency Enhancement AEE™
DCS-Control™ Topology
Available with Active Output Discharge
Optional HICCUP Overcurrent Protection
Power Good Output
Available in 3-mm x 2-mm VQFN Package

Output Voltage Accuracy ± 1% (PWM mode)
Input Voltage Range: 3 V to 17 V
Quiescent Current 18 µA Typ
Output Voltage from 0.8 V to 12 V
Adjustable Soft-Start
Forced PWM or PWM/PFM operation
Typical switching frequency of 2.5MHz in forced PWM
Precise ENABLE input allows
- User-Defined Undervoltage Lockout
- Exact Sequencing
100% Duty Cycle Mode
Automatic Efficiency Enhancement AEE™
DCS-Control™ Topology
Available with Active Output Discharge
Optional HICCUP Overcurrent Protection
Power Good Output
Available in 3-mm x 2-mm VQFN Package

The TPS62135 and TPS621351 are high efficiency and easy to use synchronous step-down DC-DC converters, based on the DCS-Control™ Topology. The devices wide input voltage range of 3-V to 17-V makes it suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 4-A continuous output current. The TPS62135 automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the device is well suited for applications that require connected standby performance, like ultra low power computers. With the MODE pin set to low, the switching frequency of the device is adapted automatically based on the input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE™) and maintains high conversion efficiency over the whole operation range. It provides a 1% output voltage accuracy in PWM mode and therefore enables the design of a power supply with high output voltage accuracy.

The device has a typical quiescent current of 18 µA. In shutdown mode the current is typically 1 µA and the output is actively discharged for TPS62135 while the output voltage discharge feature is disabled in TPS621351.

The TPS62135 is available as an adjustable version, packaged in a 3-mm x 2-mm VQFN package.

The TPS62135 and TPS621351 are high efficiency and easy to use synchronous step-down DC-DC converters, based on the DCS-Control™ Topology. The devices wide input voltage range of 3-V to 17-V makes it suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 4-A continuous output current. The TPS62135 automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the device is well suited for applications that require connected standby performance, like ultra low power computers. With the MODE pin set to low, the switching frequency of the device is adapted automatically based on the input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE™) and maintains high conversion efficiency over the whole operation range. It provides a 1% output voltage accuracy in PWM mode and therefore enables the design of a power supply with high output voltage accuracy.

The device has a typical quiescent current of 18 µA. In shutdown mode the current is typically 1 µA and the output is actively discharged for TPS62135 while the output voltage discharge feature is disabled in TPS621351.

The TPS62135 is available as an adjustable version, packaged in a 3-mm x 2-mm VQFN package.

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重要文件	類型	標題	格式選項	日期
*	Data sheet	TPS62135, TPS621351 High Accuracy 3-V to 17-V 4-A Step-Down Converters with DCS-Control datasheet (Rev. B)	PDF \| HTML	2017年 4月 4日
	Application note	QFN and SON PCB Attachment (Rev. C)	PDF \| HTML	2023年 12月 6日
	Application note	Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. D)	PDF \| HTML	2023年 1月 23日
	Application note	Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B)	PDF \| HTML	2022年 5月 23日
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)		2021年 4月 8日
	Analog Design Journal	Methods of output-voltage adjustment for DC/DC converters		2019年 6月 14日
	Application note	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)		2018年 12月 11日
	Application note	Solve Point-of-Load Power Design Challenges: Single Board Computer Applications		2018年 8月 24日
	Analog Design Journal	Understanding 100% mode in low-power DC/DC converters		2018年 6月 22日
	Technical article	Output accuracy varies with temperature – 1% is not always 1%	PDF \| HTML	2018年 5月 2日
	Analog Design Journal	Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold		2017年 10月 24日
	Application note	Feedforward Capacitor to Improve Stability and Bandwidth of TPS621/821-Family (Rev. A)		2017年 6月 28日
	Application note	Sequencing and Tracking With the TPS621-Family and TPS821-Family (Rev. A)		2017年 6月 28日
	Application note	Step-Down LED Driver With Dimming With the TPS621-Family and TPS821-Family (Rev. A)		2017年 6月 28日
	Analog Design Journal	Testing tips for applying external power to supply outputs without an input voltage		2016年 10月 24日
	Analog Design Journal	Understanding frequency variation in the DCS-Control(TM) topology		2015年 10月 30日
	Application note	Basic Calculation of a Buck Converter's Power Stage (Rev. B)		2015年 8月 17日
	Analog Design Journal	Five steps to a great PCB layout for a step-down converter		2015年 1月 29日
	Application note	Using the TPS62150 in a Split Rail Topology		2014年 3月 26日
	Analog Design Journal	High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions		2013年 7月 25日
	Application note	How to Measure the Control Loop of DCS-Control Devices (Rev. A)		2012年 8月 9日
	Analog Design Journal	Design considerations for a resistive feedback divider in a DC/DC converter		2012年 4月 26日
	Application note	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)		2012年 1月 13日
	Application note	Voltage Margining Using the TPS62130		2011年 12月 15日
	Application note	Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs		2011年 9月 19日
	Analog Design Journal	IQ: What it is, what it isn’t, and how to use it		2011年 6月 17日