參數(shù)資料
型號(hào)： SP6120
英文描述： Fixed Frequency, Voltage Mode, Synchronous PWM Controller(固定頻率，電壓模式同步PWM（脈寬調(diào)制控制器）)
中文描述： 固定頻率，電壓模式，同步PWM控制器（固定頻率，電壓模式同步的PWM（脈寬調(diào)制控制器））
文件頁(yè)數(shù)： 17/20頁(yè)
文件大?。?/td> 187K
代理商： SP6120
17
P
Rev. 2/15/01
SP6120 Low Voltage, AnyFET
TM
, Synchronous, Buck Controller Copyright 2001 Sipex Corporation
Output Voltage Programming
As shown in Figure 9(A), the voltage divider
connecting to the V
FB
pin programs the output
voltage according to
)
1
25
.
=
2
1
R
R
V
OUT
+
where 1.25V is the internal reference voltage.
Select R2 in the range of 10k to 100k, and R1 can
be calculated using
(
2
1
=
R
25
.
)
25
.
OUT
V
R
Figure 9 (A) A voltage divider connected to the V
pin programs the output voltage. (B) A simple circuit using one
external voltage reference programs the output voltages to less than 1.25V.
R1
R2
R2
R1
R3
A
B
V
REF
V
FB
V
FB
V
OUT
< 1.25V
V
OUT
> 1.25V
SP6120
SP6120
For output voltage less than 1.25V, a simple
circuit shown in Fig.9(B) can be used in which
V
REF
is an external voltage reference greater
than 1.25V. For simplicity, use the same resistor
value for R1 and R2, then R3 is determined as
follows,
V
R
=
5
OUT
V
REF
R
)
25
.
(
1
3
相關(guān)PDF資料
PDF描述
SP6122ACU-15 Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
SP6122CU Evaluation Board Manual
SP6122EB Evaluation Board Manual
SP6122UEB Evaluation Board Manual
SP6122ACU-1.5 Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP6120_05 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Voltage, AnyFETTM, Synchronous,Buck Controller Ideal for 2A to 10A, High Performance, DC-DC Power Converters
SP612-05 制造商:Delphi Corporation 功能描述:WIRE STOP
SP612-07 制造商:Delphi Corporation 功能描述:LOCATOR
SP612-08 制造商:Delphi Corporation 功能描述:PIVOT PIN
SP6120B 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Voltage, AnyFETTM, Synchronous ,Buck Controller Ideal for 2A to 10A, High Performance, DC-DC Power Converters
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