Datasheet > ISL9440BIRZ

ISL9440BIRZ

更新时间： 2024-02-19 21:30:36

品牌	Logo	应用领域
瑞萨 - RENESAS		开关
页数	文件大小	规格书
25页	2226K
描述
Triple Step-Down PWM and Single Linear Controller with Programmable Soft-Start; QFN32; Temp Range: -40° to 85°C

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技术参数
数据手册

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ISL9440BIRZ 技术参数

生命周期：	Unknown	零件包装代码：	QFN
包装说明：	HVQCCN, LCC32,.2SQ,20	针数：	32
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.21
其他特性：	ALSO OPERATES AS LDO REGULATOR	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	24 V	最小输入电压：	5.6 V
标称输入电压：	12 V	JESD-30 代码：	S-PQCC-N32
JESD-609代码：	e3	长度：	5 mm
湿度敏感等级：	3	功能数量：	1
端子数量：	32	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	0.1 A
标称输出电压：	5 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVQCCN	封装等效代码：	LCC32,.2SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1 mm	子类别：	Switching Regulator or Controllers
表面贴装：	YES	切换器配置：	BUCK
最大切换频率：	340 kHz	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn) - annealed	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	30	宽度：	5 mm
Base Number Matches：	1

ISL9440BIRZ 数据手册

DATASHEET

ISL9440B, ISL9440C

Triple Step-Down PWM and Single Linear Controller with Programmable Soft-Start

FN6799

Rev 4.00

February 18, 2016

The ISL9440B and ISL9440C are quad-output synchronous

buck controllers that integrate three PWM controllers and one

Features

• Three Integrated Synchronous Buck PWM Controllers

- Internal Bootstrap Diodes

low drop-out linear regulator controller, which are full featured

and designed to provide multi-rail power for use in products

such as cable and satellite set-top boxes, VoIP gateways,

cable modems, and other home connectivity products as well

as a variety of industrial and general purpose applications.

Each output is adjustable down to 0.8V. The PWMs are

synchronized at 180° out-of-phase thus, reducing the RMS

input current and ripple voltage.

- Internal Compensation

• Independent Control for each Regulator and

Programmable Output Voltages; Independent

Enable/Shutdown/Soft-start

• Fixed Switching Frequency: 300kHz(B), 600kHz(C)

The ISL9440B and ISL9440C offer programmable soft-start,

independent enable inputs for ease of supply rail

sequencing, and integrated UV/OV/OC/OT protections in a

space conscious 5mmx5mm QFN package. An early

warning function is offered to output a logic signal to warn

the system to back up data when input voltage falls below a

certain level.

• Adaptive Shoot-Through Protection on all Synchronous

Buck Controllers

• Pre-biased Output Start-up Capability

• Out-of-Phase Switching to Reduce Input Capacitance

(0°/180°/0°)

• No External Current Sense Resistor

- Uses Lower MOSFET’s r_DS(ON)

The ISL9440B and ISL9440C utilize internal loop

compensation to keep minimum peripheral components for

compact design and a low total solution cost. These devices

are implemented with current mode control with feed-forward

to cover various applications even with fixed internal

compensations.

• Current Mode Controller with Voltage Feed-Forward

• Complete Protection

- Overcurrent, Overvoltage, Undervoltage Lockout,

Over-Temperature

Table 1 shows the difference in terms of ISL944xx family

features.

• Cycle-by-Cycle Current Limiting

TABLE 1.

• Wide Input Voltage Range

SWITCHING

PART

NUMBER

EARLY

WARNING

FREQUENCY

(kHz)

SOFT-STARTING

TIME (ms)

- Input Rail Powers VIN Pin: 5.6V to 24V

- Input Rail Powers VCC_5V Pin (VIN tied to VCC_5V, for

5V input applications): 4.5V to 5.6V

ISL9440

ISL9440A

ISL9441

ISL9440B

Yes

300

600

300

600

1.7

• Early Warning on Input Voltage Failure

• Integrated Reset Function

1.7

Yes

Programmable

• Pb-Free (RoHS Compliant)

ISL9440C

(No longer

available or

supported)

Applications

• Satellite and Cable Set-Top Boxes

• Cable Modems

• VoX Gateway Devices

• NAS/SAN Devices

• ATX Power Supply

Related Literature

• Technical Brief TB389 “PCB Land Pattern Design and

Surface Mount Guidelines for QFN (MLFP) Packages”

FN6799 Rev 4.00

February 18, 2016

Page 1 of 25

12 3 4 5 6 7...25

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与ISL9440BIRZ相关器件

型号	品牌	描述	获取价格	数据表
ISL9440BIRZ-T	RENESAS	Triple Step-Down PWM and Single Linear Controller with Programmable Soft-Start; QFN32; Tem	获取价格
ISL9440C	INTERSIL	Triple PWM Step-Down Synchronous Buck Controller and One LDO	获取价格
ISL9440CEVAL1Z	INTERSIL	Triple PWM Step-Down Synchronous Buck Controller and One LDO	获取价格
ISL9440CIRZ	INTERSIL	Triple Step-Down PWM and Single Linear Controller with Programmable Soft-Start	获取价格
ISL9440CIRZ	RENESAS	0.1A SWITCHING REGULATOR, 678kHz SWITCHING FREQ-MAX, PQCC32, 5 X 5 MM, ROHS COMPLIANT, PLA	获取价格
ISL9440CIRZ-T	RENESAS	0.1A SWITCHING REGULATOR, 678kHz SWITCHING FREQ-MAX, PQCC32, 5 X 5 MM, ROHS COMPLIANT, PLA	获取价格

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