Datasheet > ISL9440BIRZ-T

ISL9440BIRZ-T

更新时间： 2024-02-02 16:33:40

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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ISL9440BIRZ-T 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	Factory Lead Time：	16 weeks
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-T 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-T相关器件

型号	品牌	描述	获取价格	数据表
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
ISL9440IRZ	RENESAS	Triple, 180Â° Out-of-Phase, Step-Down PWM and	获取价格

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