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ISL9305IRTWCNLZ-T PDF预览

ISL9305IRTWCNLZ-T

更新时间: 2024-11-13 20:33:55
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&deg; to 85&deg;C

ISL9305IRTWCNLZ-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:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:17 weeks
风险等级:5.66可调阈值:YES
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUITJESD-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

ISL9305IRTWCNLZ-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  
2
• 400kb/s I C-bus Series Interface Transfers the Control Data  
Between the Host Controller and the ISL9305  
• Adjustable Output Voltage  
2
applications, they can also be programmed through I C interface  
- VODCD1/VODCD2 . . . . . . . . . . . . . . . . . . . . . . . . 0.8V to V  
IN  
to operate in forced PWM mode regardless of the load current  
2
• Fixed Output I C Programmability  
2
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  
2
• 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  
IN  
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  
Q
Q
2
• 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.  
2
• 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”  
L
= 1.5µH  
R
1
800mA  
PG  
SW1  
FB1  
2.3V TO 5.5V  
VINDCD1  
*
C
1
4
R
2
VINDCD2  
4.7µF  
C
10µF  
10  
L
= 1.5µH  
R
2
800mA  
SDAT  
SCLK  
SW2  
FB2  
ISL9305  
*
4
C
5
4.7µF  
1.5V TO 5.5V  
1.5V TO 5.5V  
3
R
VINLDO1  
C
1µF  
2
300mA  
300mA  
VOLDO1  
VOLDO2  
VINLDO2  
C
1µF  
3
C
1µF  
C
7
1µF  
6
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  

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