Datasheet > ISL9305IRTBCNLZ-T

ISL9305IRTBCNLZ-T

更新时间： 2024-02-13 12:49:48

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
17页	1036K
描述
3MHz Dual Step-Down Converters and Dual Low-Input LDOs with I<sup>2</sup>C Compatible Interface; TQFN16; Temp Range: -40° to 85°C

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ISL9305IRTBCNLZ-T 技术参数

生命周期：	Unknown	零件包装代码：	TQFN
包装说明：	HVQCCN, LCC16,.16SQ,25	针数：	16
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	17 weeks
风险等级：	5.66	Is Samacsys：	N
可调阈值：	YES	模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：	S-PQCC-N16	JESD-609代码：	e3
长度：	4 mm	湿度敏感等级：	3
信道数量：	1	功能数量：	1
端子数量：	16	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVQCCN	封装等效代码：	LCC16,.16SQ,25
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	2.5/5 V
认证状态：	Not Qualified	座面最大高度：	0.8 mm
子类别：	Power Management Circuits	最大供电电流 (Isup)：	7.5 mA
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.3 V
标称供电电压 (Vsup)：	3.3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn) - annealed
端子形式：	NO LEAD	端子节距：	0.65 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	4 mm	Base Number Matches：	1

ISL9305IRTBCNLZ-T 数据手册

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DATASHEET

ISL9305

FN7605

Rev 2.00

February 9, 2015

3MHz Dual Step-Down Converters and Dual Low-Input LDOs with I2C Compatible

Interface

The ISL9305 is an integrated mini Power Management IC

Features

(mini-PMIC) ideal for applications of powering low-voltage

• Dual 800mA, Synchronous Step-down Converters and Dual

300mA, General-purpose LDOs

microprocessor or multiple voltage rails with battery as input

sources, such as a single Li-ion or Li-Polymer. ISL9305

integrates two high-efficiency 3MHz synchronous step-down

converters (DCD1 and DCD2) and two low-input, low-dropout

linear regulators (LDO1 and LDO2).

• Input Voltage Range

- DCD1/DCD2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3V to 5.5V

- LDO1/LDO2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V to 5.5V

The 3MHz PWM switching frequency allows the use of very small

external inductors and capacitors. Both step-down converters can

enter skip mode under light load conditions to further improve the

efficiency and maximize the battery life. For noise sensitive

• 400kb/s I C-bus Series Interface Transfers the Control Data

Between the Host Controller and the ISL9305

• Adjustable Output Voltage

applications, they can also be programmed through I C interface

- VODCD1/VODCD2 . . . . . . . . . . . . . . . . . . . . . . . . 0.8V to V

to operate in forced PWM mode regardless of the load current

• Fixed Output I C Programmability

condition. The I C interface supports on-the-fly slew rate control of

- At 25mV/Step . . . . . . . . . . . . . . . . . . . . . . . .0.825V to 3.6V

the output voltage from 0.825V to 3.6V at 25mV/step size for

dynamic power saving. Each step-down converter can supply up to

800mA load current. The default output voltage can be set from

• LDO1/LDO2 Output Voltage I C Programmability

- At 50mV/Step . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9V to 3.6V

0.8V to V using external feedback resistors on the adjustable

version, or the ISL9305 can be ordered in factory pre-set voltage

options from 0.9V to 3.6V in 50mV step.

• 50μA I (Typ) with DCD1/DCD2 in Skip Mode; 20μA I (Typ)

for each Enabled LDO

• On-the-fly I C Programming of DC/DC and LDO Output

Voltages

The ISL9305 also provides two 300mA low dropout (LDO)

regulators. The input voltage range is 1.5V to 5.5V allowing

them to be powered from one of the on-chip step-down

converters or directly from the battery. The default LDO

power-up output comes with factory pre-set fixed output

voltage options between 0.9V to 3.3V.

• DCD1/DCD2 I C Programmable Skip Mode Under Light

Load or Forced Fixed Switching Frequency PWM Mode

• Small, Thin, 4mmx4mm TQFN Package

Applications

• Cellular Phones, Smart Phones

The ISL9305 is available in a 4mmx4mm 16 Ld TQFN package.

Related Literature

• PDAs, Portable Media Players, Portable Instruments

• Single Li-ion/Li-Polymer Battery-Powered Equipment

• DSP Core Power

• ISL9305H Data Sheet

• AN1564 “ISL9305 and ISL9305H Evaluation Boards”

= 1.5µH

800mA

SW1

FB1

2.3V TO 5.5V

VINDCD1

VINDCD2

4.7µF

10µF

= 1.5µH

800mA

SDAT

SCLK

SW2

FB2

ISL9305

4.7µF

1.5V TO 5.5V

VINLDO1

1µF

300mA

VOLDO1

VOLDO2

VINLDO2

1µF

GNDDCD1 GNDDCD2 GNDLDO

*Only for adjustable output version. For fixed output version, directly

connect the FB pin to the output of the buck converter.

FIGURE 1. TYPICAL APPLICATION DIAGRAM

FN7605 Rev 2.00

February 9, 2015

Page 1 of 17

12 3 4 5 6 7...17

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