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TPS70151PWPR 参数 Datasheet PDF下载

TPS70151PWPR图片预览
型号: TPS70151PWPR
PDF下载: 下载PDF文件 查看货源
内容描述: 双输出低压降稳压器具有上电顺序的分离电压DSP系统 [Dual-Output Low-Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems]
分类和应用: 线性稳压器IC调节器电源电路光电二极管输出元件PC
文件页数/大小: 34 页 / 563 K
品牌: TI [ TEXAS INSTRUMENTS ]
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www.ti.com
TPS70145, TPS70148
TPS70151, TPS70158
TPS70102
SLVS222D – DECEMBER 1999 – REVISED NOVEMBER 2004
Dual-Output Low-Dropout Voltage Regulators
with Power-Up Sequencing for Split-Voltage DSP Systems
FEATURES
Dual Output Voltages for Split-Supply
Applications
Selectable Power-Up Sequencing for DSP
Applications
Output Current Range of 500mA on Regulator
1 and 250mA on Regulator 2
Fast Transient Response
Voltage Options: 3.3V/2.5V, 3.3V/1.8V,
3.3V/1.5V, 3.3V/1.2V, and Dual Adjustable
Outputs
Open Drain Power-On Reset with 120ms Delay
Open Drain Power Good for Regulator 1
Ultra Low 190µA (typ) Quiescent Current
1µA Input Current During Standby
Low Noise: 65µV
RMS
Without Bypass
Capacitor
Quick Output Capacitor Discharge Feature
Two Manual Reset Inputs
2% Accuracy Over Load and Temperature
Undervoltage Lockout (UVLO) Feature
20-Pin PowerPAD™ TSSOP Package
Thermal Shutdown Protection
DESCRIPTION
TPS701xx family devices are designed to provide a
complete power management solution for the
TMS320™ DSP family, processor power, ASIC,
FPGA, and digital applications where dual output
voltage regulators are required. Easy programmability
of the sequencing function makes the TPS701xx
family ideal for any TMS320 DSP applications with
power sequencing requirements. Differentiated fea-
tures, such as accuracy, fast transient response, SVS
supervisory circuit, manual reset inputs, and an
enable function, provide a complete system solution.
The TPS701xx family of voltage regulators offers very
low dropout voltage and dual outputs with power-up
sequence control, which is designed primarily for
DSP applications. These devices have extremely low
noise output performance without using any added
filter bypass capacitors and are designed to have a
fast transient response and be stable with 10µF low
ESR capacitors.
These devices have fixed 3.3V/2.5V, 3.3V/1.8V,
3.3V/1.5V, 3.3V/1.2V, and adjustable/adjustable volt-
age options. Regulator 1 can support up to 500mA,
and regulator 2 can support up to 250mA. Separate
voltage inputs allow the designer to configure the
source power.
PWP PACKAGE
(TOP VIEW)
NC
V
IN1
V
IN1
MR1
MR2
EN
SEQ
GND
V
IN2
V
IN2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
V
OUT1
V
OUT1
V
SENSE1
/FB1
PG1
RESET
V
SENSE2
/FB2
V
OUT2
V
OUT2
NC
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.
PowerPAD, TMS320 are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2004, Texas Instruments Incorporated