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參數資料
| 型號： | CM2593PGZJCS |
| 廠商： | Champion Microelectronic Corp. |
| 英文描述： | 2A Step Down VOLTAGE REGULATOR |
| 中文描述： | 第2A降壓穩壓器 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 264K |
| 代理商： | CM2593PGZJCS |
CM2593/P
2A Step Down VOLTAGE REGULATOR
GENERAL DESCRIPTION
The CM2593/P is a monolithic integrated circuit that
FEATURES
provide all the active functions for a step-down
switching regulator, capable of driving a 2A load
without additional transistor component. Requiring a
minimum number of external component, the board
space can be saved easily. The external shutdown
function can be controlled by TTL logic level and
then come into standby mode. The internal
compensation makes feedback control have good
line and load regulation without external design.
Regarding protected function, thermal shutdown is
to prevent over temperature operating from damage,
and current limit is against over current operating of
the output switch. The CM2593/P operates at a
switching frequency of 150Khz thus allowing smaller
sized filter components than what would be needed
with lower frequency switching regulators. Other
features include a guaranteed +4% tolerance on
output voltage under specified input voltage and
output load conditions, and +15% on the oscillator
frequency. The output version included fixed 3.3V,
5V, and an adjustable type. The packages are
available in a standard 8-lead SOP8.
TYPICAL APPLICATIONS
◆
3.3V, 5V and adjustable output versions
◆
Adjustable version output voltage range, 1.23V to 37V +4%
max over line and load condition
◆
SOP-8L packages
◆
Voltage mode non-synchronous PWM control
◆
Thermal-shutdown and current-limit protection
◆
ON/OFF shutdown control input
◆
Input voltage range up to 40V
◆
Output load current: 2A
◆
150 kHz fixed frequency internal oscillator
◆
Low power standby mode
◆
Built-in switching transistor on chip
APPLICATIONS
Simple High-efficiency step-down(buck) regulator
Efficient pre-regulator for linear regulators
On-card switching regulators
Battery / Car Charger
Positive to negative converter
Digital Still and Video Cameras
Figure 1. Basic Application Circuit with CM2593/P fixed version
2007/01/25
Rev. 1.4
Champion Microelectronic Corporation
Page 1
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