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參數(shù)資料
| 型號： | MC33997 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Switching Power Supply with Linear Regulators(帶線性穩(wěn)壓器的開關(guān)電源) |
| 中文描述： | 開關(guān)電源與線性穩(wěn)壓器（帶線性穩(wěn)壓器的開關(guān)電源） |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 454K |
| 代理商： | MC33997 |
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
Motorola, Inc. 2003
33997 Simplified Application Diagram
Document order number: MC33997/D
Rev 3.0, 03/2003
33997
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 Motorola 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)
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
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
SOIC-24WB Package
ORDERING INFORMATION
Device
Temperature
Range (T
A
)
Package
MC33997DW/R2
-40°C to 125°C
24 SOICW
DW SUFFIX
24-LEAD SOICW
CASE 751E
POWER SUPPLY
INTEGRATED CIRCUIT
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC33997DW | 功能描述:IC SWITCH 3.3/5V SUPPLY 24-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| MC33997DWR2 | 制造商:Rochester Electronics LLC 功能描述:MLPS 3.3 IC - Bulk |
| MC33999EK | 功能描述:多路器開關(guān) IC 16 LOW SIDE PWM&SPI RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MC33999EK | 制造商:Freescale Semiconductor 功能描述:IC SWITCH 16 OUT SPI/PWM 54SOIC |
| MC33999EKR2 | 功能描述:多路器開關(guān) IC 16 LOW SIDE PWM&SPI RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
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