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TPS71157YZT PDF预览

TPS71157YZT

更新时间： 2024-02-24 07:37:12
品牌 Logo 应用领域
德州仪器 - TI 输出元件调节器
页数 文件大小 规格书
12页 238K
描述
DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, PBGA8, CSP-8

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TPS71157YZT 技术参数

生命周期：Obsolete零件包装代码：BGA
包装说明：VFBGA, BGA8,3X3,20针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.84
可调性：FIXED最大回动电压 1：0.415 V
标称回动电压 1：0.19 V最大回动电压 2：0.415 V
最大绝对输入电压：6 V最大输入电压：5.5 V
最小输入电压：3.265 VJESD-30 代码：R-PBGA-B8
长度：1.702 mm功能数量：1
输出次数：2端子数量：8
工作温度TJ-Max：125 °C工作温度TJ-Min：-40 °C
最大输出电流 1：0.25 A最大输出电流 2：0.25 A
最大输出电压 1：2.9498 V最小输出电压 1：2.7503 V
标称输出电压 1：2.85 V最大输出电压 2：2.964 V
最小输出电压 2：2.736 V标称输出电压 2：2.85 V
封装主体材料：PLASTIC/EPOXY封装代码：VFBGA
封装等效代码：BGA8,3X3,20封装形状：RECTANGULAR
封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH包装方法：TAPE AND REEL
认证状态：Not Qualified调节器类型：FIXED POSITIVE MULTIPLE OUTPUT LDO REGULATOR
座面最大高度：0.825 mm子类别：Other Regulators
表面贴装：YES技术：PMOS
端子形式：BALL端子节距：0.5 mm
端子位置：BOTTOM最大电压容差：4%
宽度：1.6 mmBase Number Matches：1

TPS71157YZT 数据手册

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TPS71157  
www.ti.com  
SBVS057B–MARCH 2005–REVISED SEPTEMBER 2005  
DUAL 250 mA OUTPUT, ULTRALOW-NOISE, HIGH PSRR,  
LOW-DROPOUT LINEAR REGULATOR  
FEATURES  
DESCRIPTION  
•
•
•
•
•
•
•
Dual 250 mA High-Performance RF LDOs  
The TPS71157 low-dropout (LDO) voltage regulator  
is tailored to noise-sensitive and RF applications. This  
product features dual 250 mA LDOs with  
ultralow-noise, high power-supply rejection ratio  
(PSRR), and fast transient and start-up response.  
Each regulator output is stable with low-cost 2.2 µF  
ceramic output capacitors and features very low  
dropout voltages (125 mV typical at 250 mA). Each  
regulator achieves fast start-up times (approximately  
60 µs with a 0.001 µF bypass capacitor) while  
consuming very low quiescent current (300 µA typical  
with both outputs enabled). When the device is  
placed in standby mode, the supply current is  
reduced to less than 0.3 µA typical. Each regulator  
exhibits approximately 32 µVRMS of output voltage  
noise with VOUT = 2.85 V and a 0.01 µF noise  
reduction (NR) capacitor. Applications with analog  
components that are noise-sensitive, such as  
portable RF electronics, will benefit from high PSRR,  
low noise, and fast line and load transient features.  
The TPS71157 is offered in a wafer-chip scale  
package and is fully specified from –40°C to +125°C  
(TJ).  
High PSRR: 65 dB at 10 kHz  
Ultralow-Noise: 32 µVrms  
Fast Start-Up Time: 60 µs  
Stable with 2.2 µF Ceramic Capacitor  
Excellent Load/Line Transient Response  
Very Low Dropout Voltage: 100 mV to 120 mV  
at 150 mA  
•
•
Independent Enable Pins  
Thermal Shutdown and Independent Current  
Limit  
•
Available in a Wafer-Chip Scale Package  
APPLICATIONS  
•
•
•
•
•
Cellular and Cordless Phones  
Wireless PDA/Handheld Products  
PCMCIA/Wireless LAN Applications  
Digital Camera/Camcorder/Internet Audio  
DSP/FPGA/ASIC/Controllers and Processors  
PSRR (RIPPLE REJECTION) vs FREQUENCY  
80  
70  
60  
50  
40  
30  
20  
10  
0
YZ PACKAGE  
Chip Scale  
(TOP VIEW)  
A1−OUT2  
IOUT = 250 mA  
A3  
A2  
A1  
B3  
C3  
C2  
C1  
A2−IN  
A3−OUT1  
B1−EN2  
B3−EN1  
C1−NR  
C2−GND  
C3−GND  
IOUT = 1 mA  
B1  
VOUT = 2.85 V  
µ
COUT = 2.2  
CNR = 0.01  
F
NOTE: Both GND pins must be  
connected to ground.  
µ
F
10  
100  
1k  
10k  
100k  
1M  
10M  
Frequency (Hz)  
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.  
All trademarks are the property of their respective owners.  
PRODUCT PREVIEW information concerns products in the  
formative or design phase of development. Characteristic data and  
other specifications are design goals. Texas Instruments reserves  
the right to change or discontinue these products without notice.  
Copyright © 2005, Texas Instruments Incorporated  
1234567...12

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