参数资料
型号: SP6127EK1-L/TR
厂商: Exar Corporation
文件页数: 9/12页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 6TSOT
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.05MHz
占空比: 100%
电源电压: 4.5 V ~ 29 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: SOT-23-6 细型,TSOT-23-6
包装: 带卷 (TR)
_____________________________________ TYPICAL PERFORMANCE CHARACTERISTICS
VIN
2
Q1
Si2343DS
C1
4.7uF
12V
1
Vin
Gate
GND
L1, IHLP-2525CZ
LX
Rs=1k
3.3uH, 30mOhm, 6A
VOUT
C7
0.1uF
6
3
SP6127
VDR
Ds
MBRA340T3G
RZ
2K
R1
C4
22uF
1.8V
0-2.0A
200k, 1%
CZ
VFB
4
33pF
GND
GND
R2
5
D1 1N4148
SHDN
High=Of f
Figure 4- Application circuit
100k, 1%
90
80
70
60
50
SP6127 Efficiency versus Iout,
Vin=12V,Ta=25C
Vout=1.8V
1.810
1.805
1.800
1.795
1.790
SP6127 Load Regulation
Vin=12V
0.0
0.5
1.0
1.5
2.0
0.0
0.5
1.0
1.5
2.0
Iout (A)
Figure 5- Efficiency, natural convection
Iout (A)
Figure 6- Load regulation
Jan28-08 RevE
SP6127 TSOT-6 PFET Buck Controller
Page 9
? 2007 Exar Corporation
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