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LM5164 PDF预览

LM5164

更新时间: 2024-02-11 19:43:57
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
38页 1858K
描述
具有超低 IQ 的 6V 至 100V 输入、1A 同步直流/直流降压转换器

LM5164 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:SOP-8
Reach Compliance Code:compliantFactory Lead Time:6 weeks
风险等级:0.82Samacsys Description:Texas Instruments 6-V to 100-V Input, 1-A Synchronous Buck DC-DC Converter With Ultra-Low IQ 8-SO PowerPAD -40 to 150
模拟集成电路 - 其他类型:SWITCHING REGULATOR最大输入电压:100 V
最小输入电压:6 V标称输入电压:24 V
JESD-30 代码:R-PDSO-G8长度:4.9 mm
湿度敏感等级:2功能数量:1
端子数量:8最高工作温度:150 °C
最低工作温度:-40 °C最大输出电流:1.25 A
最大输出电压:90 V最小输出电压:1.2 V
封装主体材料:PLASTIC/EPOXY封装代码:HLSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE
座面最大高度:1.7 mm表面贴装:YES
切换器配置:BUCK最大切换频率:1000 kHz
温度等级:AUTOMOTIVE端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
宽度:3.9 mmBase Number Matches:1

LM5164 数据手册

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LM5164  
www.ti.com.cn  
ZHCSIT5A SEPTEMBER 2018REVISED JANUARY 2019  
5 Pin Configuration and Functions  
DDA Package  
8-Pin SO PowerPAD  
Top View  
GND  
SW  
VIN  
BST  
EP  
EN/UVLO  
PGOOD  
RON  
FB  
Pin Functions  
PIN  
I/O(1)  
DESCRIPTION  
NO.  
NAME  
1
GND  
G
Ground connection for internal circuits.  
Regulator supply input pin to high-side power MOSFET and internal bias regulator. Connect  
directly to the input supply of the buck converter with short, low impedance paths.  
2
3
VIN  
P/I  
Precision enable and undervoltage lockout (UVLO) programming pin. If the EN/UVLO voltage is  
below 1.1 V, the converter is in the shutdown mode with all functions disabled. If the UVLO voltage  
is greater than 1.1 V and below 1.5 V, the converter is in standby mode with the internal VCC  
regulator operational and no switching. If the EN/UVLO voltage is above 1.5 V, the start-up  
sequence begins.  
EN/UVLO  
I
4
5
RON  
FB  
I
I
On-time programming pin. A resistor between this pin and GND sets the buck switch on-time.  
Feedback input of voltage regulation comparator.  
Power good indicator. This pin is an open-drain output pin. Connect to a source voltage through an  
external pullup resistor between 10 kΩ to 100 kΩ  
6
7
PGOOD  
BST  
O
Bootstrap gate-drive supply. Required to connect a high-quality 2.2-nF 50-V X7R ceramic capacitor  
between BST and SW to bias the internal high-side gate driver.  
P/I  
Switching node that is internally connected to the source of the high-side NMOS buck switch and  
the drain of the low-side NMOS synchronous rectifier. Connect to the switching node of the power  
inductor.  
8
SW  
EP  
P
Exposed pad of the package. No internal electrical connection. Solder the EP to the GND pin and  
connect to a large copper plane to reduce thermal resistance.  
(1) G = Ground, I = Input, O = Output, P = Power  
Copyright © 2018–2019, Texas Instruments Incorporated  
3

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