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TPS65321AQPWPRQ1 PDF预览

TPS65321AQPWPRQ1

更新时间: 2023-09-03 20:32:35
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管输出元件转换器稳压器
页数 文件大小 规格书
46页 4910K
描述
采用宽输入电压范围、280mA LDO 稳压器的汽车类 3.6V 至 36V 3.2A 降压转换器 | PWP | 14 | -40 to 125

TPS65321AQPWPRQ1 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active包装说明:HTSSOP-14
Reach Compliance Code:compliantECCN代码:EAR99
Factory Lead Time:6 weeks风险等级:1.73
Is Samacsys:N其他特性:ADJUSTABLE OUTPUT VOLTAGE= 1.1V TO 20V; LDO REGULATOR SUPPLY VOLTAGE= 3V TO 36V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:36 V
最小输入电压:3.6 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G14JESD-609代码:e4
长度:5 mm湿度敏感等级:3
功能数量:1端子数量:14
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:3.2 A最大输出电压:20 V
最小输出电压:1.1 V封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):NOT SPECIFIED
筛选级别:AEC-Q100座面最大高度:1.2 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:2500 kHz温度等级:AUTOMOTIVE
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:4.4 mm
Base Number Matches:1

TPS65321AQPWPRQ1 数据手册

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Support &  
Community  
Product  
Folder  
Order  
Now  
Tools &  
Software  
Technical  
Documents  
TPS65321A-Q1  
SLVSE55 NOVEMBER 2017  
TPS65321A-Q1 36-V Step-Down Converter With Eco-mode™ and LDO Regulator  
1 Features  
2 Applications  
1
Qualified for Automotive Applications  
Automotive Infotainment and Cluster  
Advanced Driver Assistance System (ADAS)  
Automotive Telematics, eCall  
AEC-Q100 Qualified with the Following Results:  
Device Temperature Grade 1: –40°C to  
+125°C Ambient Operating Temperature  
3 Description  
Device HBM ESD Classification Level 2  
Device CDM ESD Classification Level C4B  
The TPS65321A-Q1 device is a combination of a  
high-VIN DC-DC step-down converter, referred to as  
the buck regulator, with an adjustable switch-mode  
frequency from 100-kHz to 2.5-MHz, and a high-VIN  
280-mA low-dropout (LDO) regulator. The input range  
is 3.6 V to 36 V for the buck regulator, and 3 V to  
36 V for the LDO regulator. The buck regulator has  
an integrated high-side MOSFET with an active-low,  
open-drain power-good output-pin (nRST). The LDO  
regulator features a low-input supply current of 45-μA  
typical in no-load, also has an integrated MOSFET.  
Low-voltage tracking feature enables TPS65321A-Q1  
to track the input supply during cold-crank conditions.  
One High-VIN Step-Down DC-DC Converter  
Input Range of 3.6 V to 36 V  
250-mΩ High-Side MOSFET  
Maximum Load Current 3.2 A, Output  
Adjustable 1.1 V to 20 V  
Adjustable Switching Frequency 100 kHz to  
2.5 MHz  
Synchronizes to External Clock  
High Efficiency at Light Loads With Pulse-  
Skipping Eco-mode™ Control Scheme  
The buck regulator provides a flexible design to fit  
system needs. The external loop compensation circuit  
allows for optimization of the converter response for  
the appropriate operating conditions. A low-ripple  
pulse-skip mode reduces the no-load input-supply  
current to maximum 140 μA.  
Maximum 140-µA Operating Quiescent  
Current  
Reset Output-Pin (Active Low, Open-Drain)  
One High-VIN Low-Dropout (LDO) Voltage  
Regulator  
Input Range of 3 V to 36 V  
The device has built-in protection features such as  
soft start, current-limit, thermal sensing and shutdown  
due to excessive power dissipation. Furthermore, the  
device has an internal undervoltage-lockout (UVLO)  
function that turns off the device when the supply  
voltage is too low.  
280-mA Current Capability With Typical 35-µA  
Quiescent Current in No-Load Condition  
Low-Dropout Voltage of 300 mV at  
IO = 200 mA (Typical)  
Overcurrent Protection for Both Regulators  
Overtemperature Protection  
Device Information(1)  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
14-Pin HTSSOP Package With PowerPAD™  
Integrated Circuit Package  
TPS65321A-Q1  
HTSSOP (14)  
5.00 mm × 4.40 mm  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Typical Application Schematic  
Buck Efficiency Versus Output Current  
VI = 3.6 V to 36 V  
Supply  
1.1 V to 20 V,  
3.2 A  
BOOT  
SW  
VIN  
100  
90  
80  
70  
60  
50  
40  
30  
20  
EN1  
Buck  
Regulator  
Control  
FB1  
RT/CLK  
SS  
COMP  
RST  
1.1 V to 5.5 V,  
280 mA  
VI = 3 V to 36 V  
Supply  
LDO_OUT  
VIN_LDO  
fs = 300 kHz  
10  
fs = 2 MHz  
0
GND  
EN2  
LDO  
Regulator  
Control  
PowerPAD  
0
1
2
3
4
FB2  
Load Current (A)  
D001  
TPS65321-Q1  
Copyright © 2017, Texas Instruments Incorporated  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 

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