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参数资料
| 型号： | L6926Q1TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1.65 A SWITCHING REGULATOR, 800 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 3 X 3 MM, 1.08 MM HEIGHT, LEAD FREE, VFQFPN-8 |
| 文件页数： | 1/16页 |
| 文件大小： | 257K |
| 代理商： | L6926Q1TR |
September 2008
Rev 8
1/16
16
L6926
High efficiency monolithic synchronous step down regulator
Features
■ 2 V to 5.5 V battery input range
■ High efficiency: up to 95 %
■ Internal synchronous switch
■ No external schottky required
■ Extremely low quiescent current
■ 1 mA max shutdown supply current
■ 800 mA max output current
■ Adjustable output voltage from 0.6 V
■ Low drop-out operation: up to 100 % duty cycle
■ Selectable low noise/low consumption mode at
light load
■ Power good signal
■ ±1 % output voltage accuracy
■ Current-mode control
■ 600 kHz switching frequency
■ Externally synchronizable
from 500 kHz to 1.4 MHz
■ OVP
■ Short circuit protection
Applications
■ Battery-powered equipments
■ Portable instruments
■ Cellular phones
■ PDAs and hand held terminals
■ DSC
■ GPS
Description
The device is DC-DC monolithic regulator
specifically designed to provide extremely high
efficiency.
L6926 supply voltage can be as low as 2 V
allowing its use in single Li-ion cell supplied
applications. Output voltage can be selected by
an external divider down to 0.6 V.
Duty cycle can saturate to 100 % allowing low
drop-out operation.
The device is based on a 600 kHz fixed-
frequency, current mode-architecture.
Low consumption mode operation can be
selected at light load conditions, allowing
switching losses to be reduced. L6926 is
externally synchronizable with a clock which
makes it useful in noise-sensitive applications.
Other features like powergood, overvoltage
protection, shortcircuit protection and thermal
shutdown (150 °C) are also present.
MSOP8
VFQFPN8
(3x3x1.0 mm)
Figure 1.
Application test circuit
L 6.8
μH
SYNC
LX
VFB
C1
10
μF
6.3V
C2
220pF
C4
10
μF
6.3V
R2
200K
R3
500K
R1
100K
VIN=2V to 5.5V
VOUT=1.8V
VCC
RUN
COMP
GND
PGOOD
D01IN1305
7
6
1
8
3
5
24
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| L6928TR | 1.65 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO8 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6928 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High efficiency monolithic synchronous step down regulator |
| L6928_07 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High efficiency monolithic synchronous step down regulator |
| L6928_11 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High efficiency monolithic synchronous step down regulator |
| L6928D | 功能描述:直流/直流开关调节器 Hi Efficiency Mono Step-Down Reg RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| L6928D013TR | 功能描述:直流/直流开关调节器 2.0 to 5.5V Step-Dwn RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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