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TPS62619

更新时间： 2024-11-15 07:04:47
品牌 Logo 应用领域
德州仪器 - TI 转换器功效
页数 文件大小 规格书
27页 749K
描述
350-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER IN LOW PROFILE CHIP SCALE PACKAGING (HEIGHT < 0.4mm)

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TPS62619 数据手册

 浏览型号TPS62619的Datasheet PDF文件第2页浏览型号TPS62619的Datasheet PDF文件第3页浏览型号TPS62619的Datasheet PDF文件第4页浏览型号TPS62619的Datasheet PDF文件第5页浏览型号TPS62619的Datasheet PDF文件第6页浏览型号TPS62619的Datasheet PDF文件第7页 
CSP-6  
TPS62619, TPS62612  
TPS62615, TPS62616  
www.ti.com  
SLVS936A –NOVEMBER 2009–REVISED MARCH 2010  
350-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER  
IN LOW PROFILE CHIP SCALE PACKAGING (HEIGHT < 0.4mm)  
Check for Samples: TPS62619, TPS62612, TPS62615, TPS62616  
1
FEATURES  
23  
•
90% Efficiency at 6MHz Operation  
DESCRIPTION  
•
31mA Quiescent Current  
The TPS6261x device is  
a
high-frequency  
•
•
•
•
•
•
•
•
•
Wide VIN Range From 2.3V to 5.5V  
6MHz Regulated Frequency Operation  
Best in Class Load and Line Transient  
±2% Total DC Voltage Accuracy  
Automatic PFM/PWM Mode Switching  
Low Ripple Light-Load PFM Mode  
>50dB VIN PSRR (1kHz to 10kHz)  
Internal Soft-Start, 100-ms Start-Up Time  
synchronous step-down dc-dc converter optimized for  
battery-powered portable applications. Intended for  
low-power applications, the TPS6261x supports up to  
350-mA load current, and allows the use of low cost  
chip inductor and capacitors.  
With a wide input voltage range of 2.3V to 5.5V, the  
device supports applications powered by Li-Ion  
batteries with extended voltage range. Different fixed  
voltage output versions are available from 1.2V to  
2.3V.  
Integrated Active Power-Down Sequencing  
(Optional)  
The TPS6261x operates at a regulated 6-MHz  
switching frequency and enters the power-save mode  
operation at light load currents to maintain high  
efficiency over the entire load current range.  
•
•
Three Surface-Mount External Components  
Required (One 0603 MLCC Inductor, Two 0402  
Ceramic Capacitors)  
The PFM mode extends the battery life by reducing  
the quiescent current to 31mA (typ) during light load  
Complete Sub 0.4-mm Component Profile  
Solution  
Total Solution Size <10 mm2  
operation.  
For  
low-frequency  
noise-sensitive  
•
•
applications, the device can be forced into fixed  
frequency PWM mode by pulling the MODE pin high.  
These features, combined with high PSRR and AC  
load regulation performance, make this device  
suitable to replace a linear regulator to obtain better  
power conversion efficiency.  
Available in a 6-Pin NanoFree™ (CSP)  
Ultra-Thin Packaging  
APPLICATIONS  
•
•
•
•
Cell Phones, Smart-Phones  
WLAN, GPS and Bluetooth™ Applications  
DTV Tuner Applications  
DC/DC Micro Modules  
l
l
The TPS6261x is available in an 6-pin thin chip-scale  
package (CSP, 0.4mm max. height).  
100  
90  
200  
180  
V
V
= 3.6 V,  
= 1.8 V  
I
O
80  
70  
60  
50  
40  
30  
20  
160  
140  
12
100  
80  
Efficiency  
PFM/PWM Operation  
V
V
OUT  
1.8 V @ 350mA  
TPS6261x  
VIN  
BAT  
2.9 V .. 5.5 V  
L
SW  
0.47 mH  
Power Loss  
PFM/PWM Operation  
60  
C
I
FB  
EN  
C
O
40  
2.2 mF  
4.7 mF  
10  
0
20  
0
MODE  
GND  
0.1  
1
10 100  
- Load Current - mA  
1000  
I
O
Figure 2. Efficiency vs. Load Current  
Figure 1. Smallest Solution Size Application  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
3
NanoFree is a trademark of Texas Instruments.  
Bluetooth is a trademark of Bluetooth SIG, Inc.  
UNLESS OTHERWISE NOTED this document contains  
PRODUCTION DATA information current as of publication date.  
Products conform to specifications per the terms of Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2009–2010, Texas Instruments Incorporated  
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