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參數(shù)資料
| 型號(hào)： | US3018 |
| 廠商： | Unisem Group |
| 英文描述： | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS LDO CONTROLLER AND 200mA LDO ON BOARD |
| 中文描述： | 5位可編程同步降壓普樂士LDO控制器和200mA LDO的船上 |
| 文件頁(yè)數(shù)： | 4/17頁(yè) |
| 文件大?。?/td> | 108K |
| 代理商： | US3018 |
第1頁(yè)第2頁(yè)第3頁(yè)當(dāng)前第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)
4-4
Rev. 1.4
12/8/00
US3018
Pin Description
LSB input to the DAC that programs the output voltage. This pin is TTL compatible that
realizes a logic “1” as either HI or Open. When left open,his pin is pulled up internally
by a 27k
resistor to 5V supply.
Input to the DAC that programs the output voltage. This pin is TTL compatible that
realizes a logic “1” as either HI or Open. When left open,his pin is pulled up internally
by a 27k
resistor to 5V supply.
Input to the DAC that programs the output voltage. This pin is TTL compatible that
realizes a logic “1” as either HI or Open. When left open,his pin is pulled up internally
by a 27k
resistor to 5V supply.
MSB input to the DAC that programs the output voltage. This pin is TTL compatible
that realizes a logic “1” as either HI or Open. When left open,his pin is pulled up
internally by a 27k
resistor to 5V supply.
This pin selects a range of output voltages for the DAC.When in the LOW state the
range is 1.3V to 2.05V and when it switches to HI state the range is 2.0V to 3.5V. This
pin is TTL compatible that realizes a logic “1” as either HI or Open. When left open,his
pin is pulled up internally by a 27k
resistor to 5V supply.
This pin is an open collector output that switches LO when any of the outputs are
outside of the specified under voltage trip point. It also switches low when Vsen1 pin is
more than 10% above the DAC voltage setting.
This pin provides the feedback for the synchronous switching regulator. Typically this
pin can be connected directly to the output of the switching regulator. However, a
resistor divider is recommended to be connected from this pin to vout1 and GND to
adjust the output voltage for any drop in the output voltage that is caused by the trace
resistance. The value of the resistor connected from Vou1 to FB1 must be less than
100
.
PIN# PIN SYMBOL
6
VID0
5
VID1
4
VID2
3
VID3
2
VID4
7
PGOOD
18
FB1
PIN DESCRIPTIONS
D4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
D1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
D0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Vs
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
D4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
D3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
D1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
D0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Vs
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
Table 1 - Set point voltage vs. VID codes
Enable Section
En pin input LO voltage
En pin input HI voltage
En pin input LO current
En pin input HI current
Venl
Venh
Regulator OFF
Regulator ON
Ven=0V to 0.8V
Ven=2V to 5V
0.8
V
V
uA
uA
2
0.01
20
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| US3018CW | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS LDO CONTROLLER AND 200mA LDO ON BOARD |
| US3021B | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
| US3021BCW | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
| US3021M | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
| US3021MCW | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| US3018CW | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS LDO CONTROLLER AND 200mA LDO ON BOARD |
| US3021B | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
| US3021BCW | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
| US3021M | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
| US3021MCW | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER |
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