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SC600AIMSTRT 参数 Datasheet PDF下载

SC600AIMSTRT图片预览
型号: SC600AIMSTRT
PDF下载: 下载PDF文件 查看货源
内容描述: mAhXLifeTM LED驱动器, 5.0V , 4.5V , 4.0V或输出 [mAhXLifeTM LED Driver with 5.0V, 4.5V, or 4.0V Output]
分类和应用: 驱动器
文件页数/大小: 19 页 / 474 K
品牌: SEMTECH [ SEMTECH CORPORATION ]
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mAhXLife
TM
LED Driver with
5.0V, 4.5V, or 4.0V Output
POWER MANAGEMENT
Description
The SC600 is a versatile charge pump designed for use
in battery operated power supply applications. The wide
input range is matched for Li-Ion battery applications.
mAhxLife
TM
LED Drivers feature a fractional charge pump
implementation with efficiency comparable to a switching
regulator without costly inductors. Only two tiny ceramic
capacitors are required, and the inductorless implemen-
tation provides a reduced-EMI solution. Patented low
noise mode switching circuitry and constant output cur-
rent allow the use of extremely small input and output
capacitors.
The SC600 charge pump can be used for applications
that require up to 120mA of output current with a 4.0V
or 4.5V output. The 5.0V output version provides up to
60mA of output current.
mAhXLife
TM
LED drivers replace switched mode power
supplies and provide comparable efficiency with less cost,
area, noise, and complexity.
SC600
Features
Small size - MLPD 10 lead 3x3mm or MSOP-10
package allows for a complete solution in .05 sq. in.
Peak efficiency over 90% (extends battery life)
Four component versions available
60mA versions available in 5.0V and 4.5V output
120mA versions available in 4.5V and 4.0V output
Short-circuit and over-temperature protection
Soft-start function
Shutdown current <1μA
Selectable
xed frequencies of 8kHz, 32kHz,
262kHz and 650kHz
Low input and output ripple
Regulated to ± 5%
Ease of use
Applications
Cellular phones
LED backlighting
PDA power supplies
Portable electronics
Electronic books
Handheld computers
Wireless web appliances
Typical Efficiency
100
90% of Li-Ion
Battery Life
90
Efficiency [%]
80
SC600A
5.0V@60mA
70
60
Device with Only 2x Mode
5.0V@60mA
50
4.2
4.0
3.8
3.6
3.4
3.2
3.0
Input Voltage [V]
Typical Application Circuit
U1
2.7V to 6.5V
Cin
1.0uF
3
1
4.0V, 4.5V or 5.0V
2
9
Cbucket1
1.0uF
Cout
0.33uF
UP TO 6 LEDS
10
Cbucket2
1.0uF
VIN
VOUT
6
EN
SC600
CF1+
CF1-
CF2+
4
CD4
5
CX8
GND
8
CF2-
7
January 9, 2006
1
www.semtech.com