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參數(shù)資料
| 型號： | L6926 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.65 A SWITCHING REGULATOR, 800 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3 MM, LEAD FREE, MSOP-8 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 257K |
| 代理商： | L6926 |
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6926_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High efficiency monolithic synchronous step down regulator |
| L6926_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High efficiency monolithic synchronous step down regulator |
| L6926_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High efficiency monolithic synchronous step down regulator |
| L6926013TR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Synchronous Step-Dwn RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L6926D | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Synchronous Step-Dwn RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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