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參數資料
| 型號： | L6926Q1TR |
| 廠商： | 意法半導體 |
| 英文描述： | High efficiency monolithic synchronous step down regulator |
| 中文描述： | 高效率單片同步降壓穩壓器 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 178K |
| 代理商： | L6926Q1TR |
October 2006
Rev 7
1/17
17
L6926
High efficiency monolithic synchronous step down regulator
General features
■
2V to 5.5V battery input range
■
High efficiency: up to 95%
■
Internal synchronous switch
■
No external schottky required
■
Extremely low quiescent current
■
1mA max shutdown supply current
■
800mA max output current
■
Adjustable output voltage from 0.6V
■
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
■
600kHz switching frequency
■
Externally synchronizable
from 500kHz to 1.4MHz
■
OVP
■
Short circuit protection
Applications
■
Battery-powered equipments
■
Portable instruments
■
Cellular phones
■
PDAs and hand held terminals
■
DSC
■
GPS
Application test circuit
Description
The device is dc-dc monolithic regulator
specifically designed to provide extremely high
efficiency.
L6926 supply voltage can be as low as 2V
allowing its use in single Li-ion cell supplied
applications. Output voltage can be selected by
an external divider down to 0.6V.
Duty Cycle can saturate to 100% allowing low
drop-out operation.
The device is based on a 600kHz 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.
VFSON8
(3x4.9x1mm)
MSOP8
VFQFPN8
(3x3x1.0mm)
www.st.com
L 6.8
μ
H
SYNC
LX
VFB
C1
10
μ
F
6.3V
C2
220pF
C4
10
μ
F
6.3V
R2
200K
R3
500K
R1
100K
V
IN
=2V to 5.5V
V
OUT
=1.8V
V
CC
RUN
COMP
GND
PGOOD
D01IN1305
7
6
1
8
3
5
2
4
相關PDF資料 |
PDF描述 |
|---|---|
| L6926 | HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR |
| L6926D013TR | HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR |
| L6926D | HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR |
| L6928D | HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR |
| L6928D013TR | HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| L6928 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High efficiency monolithic synchronous step down regulator |
| L6928_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High efficiency monolithic synchronous step down regulator |
| L6928_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High efficiency monolithic synchronous step down regulator |
| L6928D | 功能描述:直流/直流開關調節器 Hi Efficiency Mono Step-Down Reg RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L6928D013TR | 功能描述:直流/直流開關調節器 2.0 to 5.5V Step-Dwn RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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