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參數(shù)資料
| 型號： | L6910A |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | ADJUSTABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION |
| 中文描述： | 可調(diào)降壓控制器采用同步整流 |
| 文件頁數(shù)： | 11/21頁 |
| 文件大?。?/td> | 453K |
| 代理商： | L6910A |
11/21
L6910A L6910
Figure 8. Asymptotic Bode plot of Converter's gain
20A Demo Board Description
The demo board shows the operation of the device in a general purpose application. This evaluation board al-
lows voltage adjustability from 0.9V to 5V through the switches S2-S5 according to the reported table when the
internal 0.9V reference is used (G1 closed). Output current in excess of 20A can be reached dependently on
the kind of mosfet used: up to three SO8 mosfet may be used for both High side and Low side switches. External
reference may be used for the regulation simply leaving open G1 and the switches S2-S5. The device may also
be disabled with the switch S1. The 12V input rail supplies the device while the power conversion starts from
the 5V input rail. The device is also able to operate with a single supply voltage; in this case the jumper G2 has
to be closed and a 5V to 12V input can be directly connected to the V
IN
input. The four layers demo board's
copper thickness is of 70
μ
m in order to minimize conduction losses considering the high current that the circuit
is able to deliver. Figure 9 shows the demo board's schematic circuit
Figure 9. 20A Demo Board Schematic
Error Amplifier
ω
Ζ1
ω
Ζ2
ω
P1
ω
P2
ω
ESR
R5/R3
Modulator Gain
Compensation Network Gain
Error Amplifier
Closed Loop Gain
ω
LC
ω
dB
L2
L1
R7
C1-C3
C14
C4-11
Q4-6
Q1-3
D2
C17
F1
13
14
10
11
3
1
U1
L6910
VIN
VOUT
PWRGD
6
12
5
4
2
15
7
9
VCC
GND
VREF
SS
OSC
OCSET
UGATE
PHASE
LGATE
PGND
PGOOD
C19
R1
C21
C13
D1
GNDIN
GNDOU T
R2
GNDref
+Vref
C12
GNDRef
IN
Ref
IN
C16
G1
C15
R6
C18
8
GNDCC
VCC
R5
G2
R3
R4
C20
S1
S2
S3
S4
S5
R10
R11
R12
R13
EAREF
BOOT
Vout
0.9
1.2
1.5
1.8
2.5
3.3
5.0
S2
S3
S4
S5
Open
Open
ON
ON
ON
Open
Open
Open
Open
Open
Open
Open
Open
ON
Open
Open
Open
Open
Open
Open
Open
ON
Open
Open
ON
ON
ON
Open
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PDF描述 |
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| L6910ATR | ADJUSTABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION |
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| L6911D | 5 BIT PROGRAMMABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION |
| L6911DTR | 5 BIT PROGRAMMABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6910ATR | 功能描述:DC/DC 開關(guān)控制器 5.0 to 12V Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6910G | 功能描述:電壓模式 PWM 控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| L6910GTR | 功能描述:電壓模式 PWM 控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| L6910R | 功能描述:DC/DC 開關(guān)控制器 5.0 to 12V Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6910RTR | 功能描述:DC/DC 開關(guān)控制器 5.0 to 12V Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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