参数资料
型号: SP34063AEN-L/TR
厂商: Exar Corporation
文件页数: 7/9页
文件大小: 0K
描述: IC REG BUCK BOOST INV ADJ 8NSOIC
标准包装: 1
类型: 降压(降压),升压(升压),反相
输出类型: 可调式
输出数: 1
输出电压: 可调
输入电压: 3 V ~ 36 V
频率 - 开关: 180kHz
电流 - 输出: 1.5A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 标准包装
供应商设备封装: 8-SOICN
其它名称: 1016-1583-6
S P 3 4 0 6 3 A
1 . 5 A B u c k / B o o s t / I n v e r t i n g D C - D C R e g u l a t o r
T YPICAL B UCK C ONVERTER C IRCUIT
This is a typical buck converter configuration. The working process in the steady state is similar to
a boost converter, V PIN5 = V OUT *R2/(R1+R2) = 1.25(V). The output voltage can be decided by V OUT
= 1.25V*(R1+R2)/R2(V).
T YPICAL I NVERTING C ONVERTER C IRCUIT
SP34063A
8
1
7
B
A
S
R
Q
2
R SC
0.24
Ohm
I pk
C T
L1
88uH
D1
1N5819
OSC
V IN
4.5V-6V
6
3
C1
100uF
5
+
-
1.25V
Reference
Regulator
4
C T
470pF
V OUT
-12V/100mA
L2
1uH
V OUT
R2
8.2k
R1
0.953k
C2
1000uF
Optional
Filter
C3
100uF
This is a typical boost converter configuration. The working process in the steady state is similar to
a boost converter, the difference in this situation is that the voltage at the non-inverting pin of the
comparator is equal to 1.25V +V OUT , then V PIN5 = V OUT *R2/(R1+R2) = 1.25V, + V OUT . The output
voltage can be decided by V OUT = -1.25V*(R1+R2)/R1 (V).
? 2011 Exar Corporation
7/9
Rev. 2.1.0
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