FAN5236MTC

更新时间： 2024-02-01 13:30:25

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		双倍数据速率控制器
页数	文件大小	规格书
20页	199K
描述
Dual Mobile-Friendly DDR / Dual-output PWM Controller

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中文翻译

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技术参数
数据手册
替代型号

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FAN5236MTC 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SSOP,	针数：	28
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.18
其他特性：	CAN ALSO OPERATE IN HYSTERETIC MODE	模拟集成电路 - 其他类型：	DUAL SWITCHING CONTROLLER
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	5.25 V	最小输入电压：	4.75 V
标称输入电压：	5 V	JESD-30 代码：	R-PDSO-G28
JESD-609代码：	e3	长度：	9.905 mm
功能数量：	1	端子数量：	28
最高工作温度：	85 °C	最低工作温度：	-10 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
认证状态：	Not Qualified	座面最大高度：	1.75 mm
表面贴装：	YES	切换器配置：	PUSH-PULL
最大切换频率：	345 kHz	温度等级：	OTHER
端子面层：	MATTE TIN	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
宽度：	3.895 mm	Base Number Matches：	1

FAN5236MTC 数据手册

www.fairchildsemi.com

FAN5236

Dual Mobile-Friendly DDR / Dual-output PWM Controller

Features

General Description

• Highly ﬂexible dual synchronous switching PWM

controller includes modes for:

The FAN5236 PWM controller provides high efﬁciency and

regulation for two output voltages adjustable in the range

from 0.9V to 5.5V that are required to power I/O, chip-sets,

and memory banks in high-performance notebook comput-

ers, PDAs and Internet appliances. Synchronous rectiﬁcation

and hysteretic operation at light loads contribute to a high

efﬁciency over a wide range of loads. The hysteretic mode of

operation can be disabled separately on each PWM converter

if PWM mode is desired for all load levels. Efﬁciency is even

further enhanced by using MOSFET’s R_DS(ON)as a current

sense component.

– DDR mode with in-phase operation for reduced

channel interference

– 90˚ phase shifted two-stage DDR Mode for reduced

input ripple

– Dual Independent regulators 180° phase shifted

• Complete DDR Memory power solution

– V_TTTracks VDDQ/2

– VDDQ/2 Buffered Reference Output

• Lossless current sensing on low-side MOSFET or

precision over-current using sense resistor

• V_CCUnder-voltage Lockout

Feed-forward ramp modulation, average current mode con-

trol scheme, and internal feedback compensation provide

fast response to load transients. Out-of-phase operation with

180 degree phase shift reduces input current ripple. The con-

troller can be transformed into a complete DDR memory

power supply solution by activating a designated pin. In

DDR mode of operation one of the channels tracks the out-

put voltage of another channel and provides output current

sink and source capability — features essential for proper

powering of DDR chips. The buffered reference voltage

required by this type of memory is also provided. The

FAN5236 monitors these outputs and generates separate

PGx (power good) signals when the soft-start is completed

and the output is within 10ꢀ of its set point. A built-in

over-voltage protection prevents the output voltage from

going above 120ꢀ of the set point. Normal operation is auto-

matically restored when the over-voltage conditions go

away. Under-voltage protection latches the chip off when

either output drops below 75ꢀ of its set value after the soft-

start sequence for this output is completed. An adjustable

over-current function monitors the output current by sensing

the voltage drop across the lower MOSFET. If precision cur-

rent-sensing is required, an external current-sense resistor

may optionally be used.

• Converters can operate from +5V or 3.3V or Battery

power input (5 to 24V)

• Excellent dynamic response with Voltage Feed-Forward

and Average Current Mode control

• Power-Good Signal

• Also supports DDR-II and HSTL

• Light load Hysteretic mode maximizes efﬁciency

• QSOP28, TSSOP28

Applications

• DDR V_DDQand V_TTvoltage generation

• Mobile PC dual regulator

• Server DDR power

• Hand-Held PC power

REV. 1.1.7 4/4/03

12 3 4 5 6 7...20

中文翻译

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FAN5236MTC 替代型号

型号	品牌	替代类型	描述	数据表
FAN5236MTCX	FAIRCHILD	完全替代	Dual Mobile-Friendly DDR / Dual-output PWM Controller
FAN5236QSCX	FAIRCHILD	完全替代	Dual Mobile-Friendly DDR / Dual-output PWM Controller
FAN5236QSC	FAIRCHILD	完全替代	Dual Mobile-Friendly DDR / Dual-output PWM Controller

与FAN5236MTC相关器件

型号	品牌	获取价格	描述	数据表
FAN5236MTC_NL	FAIRCHILD	获取价格	暂无描述
FAN5236MTCX	FAIRCHILD	获取价格	Dual Mobile-Friendly DDR / Dual-output PWM Controller
FAN5236MTCX	ONSEMI	获取价格	PWM/PFM 控制器，宽输入电压，双输出/DDR
FAN5236MTCX_NL	FAIRCHILD	获取价格	暂无描述
FAN5236QSC	FAIRCHILD	获取价格	Dual Mobile-Friendly DDR / Dual-output PWM Controller
FAN5236QSCX	FAIRCHILD	获取价格	Dual Mobile-Friendly DDR / Dual-output PWM Controller
FAN5236QSCX_NL	FAIRCHILD	获取价格	Dual Switching Controller, Current-mode, 345kHz Switching Freq-Max, PDSO28, LEAD FREE, QSO
FAN5240	FAIRCHILD	获取价格	Multi-Phase PWM Controller for AMD Mobile Athlon TM and Duron TM
FAN5240_06	FAIRCHILD	获取价格	Multi-Phase PWM Controller for AMD Mobile Athlon and Duron
FAN5240MSA	FAIRCHILD	获取价格	Dual Switching Controller, Current-mode, 345kHz Switching Freq-Max, PDSO28, QSOP-28

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