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| 型号： | SI9169BQ-T1-E3 |
| 厂商： | Vishay Siliconix |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC CONV BUCK BOOST 20TSSOP |
| 标准包装： | 3,000 |
| 应用： | 转换器，1 芯锂离子便携式通信设备 |
| 输入电压： | 2.7 V ~ 6 V |
| 输出数： | 1 |
| 输出电压： | 可调至 1.3V |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
Product is End of Life 3/2014
Si9169
Vishay Siliconix
High Frequency 1-A Synchronous Buck/Boost Converter
DESCRIPTION
FEATURES
Programmable PWM/PSM Control
The Si9169 provides fully integrated synchronous buck or
boost converter solution for the latest one cell Lithium Ion
cellular phones. Capable of delivering up to 1 A of output
current at + 3.6 V, the Si9169 provides ample power for
various baseband circuits as well as for some PAs. It
combines the 2 MHz switching controller with fully
integrated high-frequency MOSFETs to deliver the smallest
and most efficient converter available today. The 2 MHz
switching frequency reduces the inductor height to new
level of 2 mm and minimizes the output capacitance
requirement to less than 10 μF with peak-to-peak output
ripple as low as 10 mV. Combined with low-gate charge
high-frequency MOSFETs, the Si9169 delivers efficiency up
to 95 %. The programmable pulse skipping mode maintains
this high efficiency even during the standby and idle modes
to increase overall battery life and talktime. In order to
extract the last ounce of power from the battery, the Si9169
is designed with 100 % duty cycle control for buck mode.
With 100 % duty cycle, the Si9169 operates like a saturated
linear regulator to deliver the highest potential output
voltage for longer talktime.
Si9169 can be a drop-in replacement of Si9165 provided Pin
1 is not connected. For full 1 A load condition, Pin 1 is
required to be connected to low power controller ground.
The Si9169 is available in lead (Pb)-free TSSOP-20 pin
package. In order to satisfy the stringent ambient
temperature requirements, the Si9169 is rated to handle the
industrial temperature range of - 25 °C to 85 °C and - 40 °C
to 85 °C.
FUNCTIONAL BLOCK DIAGRAM
INPUT
OUTPUT
2.7 to 6 V
0 to 1 A
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Voltage Mode Control
Fully Integrated MOSFET Switches
2.7 V to 6 V Input Voltage Range RoHS
COMPLIANT
- Up to 1 A Output Current at 3.6 V in PWM
- Up to 2 MHz Adjustable Switching Frequency in PWM
- Less than 200 μA Quiescent Current in PSM
Integrated UVLO and POR
Integrated Soft-Start
Synchronization
Shutdown Current < 1 μA
INPUT
2.7 to 6 V
V DD
COIL V O
V S V IN/OUT
V O
OUTPUT
0 to 1 A
MODE
V S
COIL
V IN/OUT
FB
SHUTDOWN COMP
V DD
MODE
PGND
FB
COMP
PWM/PSM
R OSC
SHUTDOWN R OSC
SYNC
REF
PWM/PSM
REF
PGND
GND
SYNC PGND GND
Boost Configuration
Document Number: 70945
S-72058-Rev. E, 08-Oct-07
Buck Configuration
www.vishay.com
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI9169DB | 制造商:Vishay Siliconix 功能描述:DEMO BOARD - Tape and Reel |
| SI9169DB-K | 功能描述:电源管理IC开发工具 SI9169 Demo Board RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| SI9169DB-S | 功能描述:电源管理IC开发工具 SI9169 Demo Board RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| SI9169DQ-T1 | 功能描述:直流/直流开关转换器 Hi-Freq 1A Sync Buck/Boost Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| SI9169DQ-T1-E3 | 功能描述:直流/直流开关转换器 Hi-Freq 1A Sync Buck/Boost Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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