- 您现在的位置：买卖IC网 > PDF目录1851 > MC33997DW (Freescale Semiconductor)IC SWITCH 3.3/5V SUPPLY 24-SOIC PDF资料下载
参数资料
| 型号： | MC33997DW |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 3.3/5V SUPPLY 24-SOIC |
| 标准包装： | 30 |
| 应用： | 切换电源，微处理器 |
| 输入电压： | 6 V ~ 26.5 V |
| 输出数： | 5 |
| 输出电压： | 3.3V，5V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 管件 |
Freescale Semiconductor
Advance Information
Switching Power Supply with
Linear Regulators
The 33997 is a medium-power, multi-output power supply integrated
circuit that is capable of operating over a wide input voltage range, from
6.0 V up to 26.5 V with 40 V transient capability. It incorporates a
sensorless current mode control step-down switching controller
regulating directly to 5.0 V. The 3.3 V linear regulator uses an external
pass transistor to reduce the 33997 power dissipation. The 33997 also
provides a 3.3 V linear standby regulator and two 5.0 V sensor supply
outputs protected by internal low-resistance LDMOS transistors.
There are two separate enable pins for the main and sensor supply
outputs and standard supervisory functions such as resets with power-
up reset delay.
The 33997 provides proper power supply sequencing for advanced
microprocessor architectures such as the Freescale MPC5xx and
683xx microprocessor families.
Features
? Operating Voltage Range 6.0 V up to 26.5 V (40 V transient)
? Step-Down Switching Regulator Output V DDH = 5.0 V @ 1400 mA
(total)
Document Number: MC33997
Rev 4.0, 6/2006
33997
SWITCHING REGULATOR
DW SUFFIX
EG SUFFIX (PB-FREE)
98ASB42344B
24-PIN SOICW
ORDERING INFORMATION
? Linear Regulator with External Pass Transistor V DDL = 3.3 V @
400 mA
? Low-Power Standby Linear Regulator V KAM = 3.3 V @ 10 mA
? Two 5.0 V @ 200 mA (typical) Sensor Supplies V REF Protected
Against Short-to-Battery and Short-to-Ground with Retry Capability
Device
MC33997DW/R2
MC33997EG/R2
Temperature
Range (T A )
-40°C to 125°C
Package
24 SOICW
? Undervoltage Shutdown on the V DDL , V DDH Outputs with Retry
Capability
? Reset Signals
? Power-Up Delay
? Enable Pins for Main Supplies (EN) and Sensor Supplies (SNSEN)
? Power Sequencing for Advanced Microprocessor Architectures
? Pb-Free Packaging Designated by Suffix Code EG
5.0 V
33997
KA_VPWR VSW
VPWR
VDDH
VREF1
DRVL
VDDH
5.0 V
MCU
5.0 V
VREF2
EN
FBL
VKAM
VDDL
3.3 V
3.3 V
SNSEN
GND
PWROK
VKAMOK
Figure 1. 33997 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
? Freescale Semiconductor, Inc., 2006. All rights reserved.
相关PDF资料 |
PDF描述 |
|---|---|
| MC34063AD | IC REG BUCK BOOST INV 1.5A 8SOP |
| MC34063AMELG | IC REG BUCK BST INV ADJ 8SOEIAJ |
| MC34063AP | IC REG BUCK BOOST INV 1.5A 8DIP |
| MC34160DW | IC REG/SUPERVSRY 5V 100MA 16SOIC |
| MC34163DW | IC REG BUCK BOOST INV ADJ 16SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC33997DWR2 | 制造商:Rochester Electronics LLC 功能描述:MLPS 3.3 IC - Bulk |
| MC33999EK | 功能描述:多路器开关 IC 16 LOW SIDE PWM&SPI RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MC33999EK | 制造商:Freescale Semiconductor 功能描述:IC SWITCH 16 OUT SPI/PWM 54SOIC |
| MC33999EKR2 | 功能描述:多路器开关 IC 16 LOW SIDE PWM&SPI RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MC3399DW | 制造商: 功能描述: 制造商:undefined 功能描述: |
发布紧急采购，3分钟左右您将得到回复。