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UCC3585M PDF预览

UCC3585M

更新时间: 2024-09-19 12:26:43
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管信息通信管理
页数 文件大小 规格书
21页 802K
描述
LOW-VOLTAGE SYNCHRONOUS BUCK CONTROLLER

UCC3585M 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:SSOP, SSOP16,.25针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.73
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:6.3 V最小输入电压:3 V
标称输入电压:3.3 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e4长度:4.9 mm
湿度敏感等级:2功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:最大输出电流:1 A
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装等效代码:SSOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:PUSH-PULL最大切换频率:500 kHz
技术:BICMOS温度等级:OTHER
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:0.635 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

UCC3585M 数据手册

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ꢀ ꢁꢁ ꢂꢃ ꢄꢃ  
ꢀ ꢁꢁ ꢅꢃ ꢄꢃ  
SLUS304F − JULY 1999 − REVISED JANUARY 2005  
ꢆꢇ ꢈꢉꢊ ꢇ ꢆꢋꢌꢍ ꢎ ꢏꢐ ꢑꢁꢒꢓꢇ ꢑꢇ ꢀꢏ  
ꢔꢀꢁ ꢕ ꢁꢇ ꢑꢋ ꢓꢇ ꢆ ꢆꢎ ꢓ  
FEATURES  
DESCRIPTION  
D
D
D
D
D
VOUT Resistor Programmable Down to 0.9 V  
3.3-V or 5.0-V Input Supply  
The UCC3585 synchronous buck controller  
provides flexible high efficiency power conversion  
for output voltages as low as 0.9 V with ensured  
1% dc accuracy. With an input voltage range of  
3.0 V to 5.5 V, it is the ideal choice for 3.3 V only,  
5.0 V only, or other low voltage systems. The fixed  
frequency oscillator is capable of providing  
practical PWM operation to 500 kHz.  
1% DC Accuracy  
High Efficiency Synchronous Switching  
Drives P-Channel (High Side) and N-Channel  
(Low Side) MOSFETs  
D
Lossless Programmable Current Limit  
Logic Compatible Shutdown  
D
The UCC3585 drives a complementary pair of  
power MOSFET transistors. A P-channel on the  
high side, and an N-channel on the low side step  
down the input voltage at up to 90% efficiency.  
APPLICATIONS  
D
Local Microprocessor Core Voltage Power  
Supplies for Desktop and Notebook  
Computers  
A
programmable two-level current limiting  
function is provided by sensing the voltage drop  
across the high side P-channel MOSFET. This  
circuit can be configured to provide pulse-  
by-pulse limiting, timed shutdown after seven  
consecutive faults, or latch-off after fault detec-  
tion, allowing maximum application flexibility. The  
current limit threshold can be programmed over a  
wide range with a single resistor.  
D
D
DSP Core or I/O Powering  
High-Speed GTL Bus Regulation  
VIN  
C7  
0.47 µ F  
R4  
14 kΩ  
V
V
= 3.3 V  
= 1.8 V  
IN  
OUT  
= 3 A (max)  
UCC3585  
CLSET  
R1  
10 kΩ  
+
I
OUT  
C1  
Q1  
SI4562DY  
15 VIN  
8
150 µ F  
ENABLE  
L1  
3.7 µ H  
1
2
4
ENB  
COMP ISENSE 11  
VFB NDRV 14  
PDRV 12  
C2 5600 pF  
C3 47 pF  
R2 10 kΩ  
V
OUT  
R5  
2 kΩ  
+
+
10 SD  
SS  
16 CT  
ISET  
N/C  
N/C  
6
9
C4 0.47 µ F  
C5 0.1 µ F  
C6 470 pF  
R3 100 kΩ  
C8  
150 µ F  
C9  
10 µ F  
3
PWRGND 13  
R6  
2 kΩ  
7
GND  
5
RTN  
RTN  
UDG−01127  
ꢋꢤ  
Copyright 2001, Texas Instruments Incorporated  
ꢠ ꢤ ꢡ ꢠꢙ ꢚꢮ ꢜꢛ ꢟ ꢧꢧ ꢥꢟ ꢝ ꢟ ꢞ ꢤ ꢠ ꢤ ꢝ ꢡ ꢩ  
1
www.ti.com  

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