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參數(shù)資料
| 型號： | L6910A |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | EXPOSED PAD, HTSSOP-16 |
| 文件頁數(shù)： | 3/30頁 |
| 文件大小： | 763K |
| 代理商： | L6910A |
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L6910 - L6910A
Figure 11. Asymptotic Bode Plot of Converter's Gain
5
15A 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 VCC input rail supplies the device while the power conversion starts from
the VIN 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 VIN input. The four layers demo board's
copper thickness is of 70
m in order to minimize conduction losses considering the high current that the circuit
is able to deliver.The PGOOD signal is used as a logic level and it's been pulled up to VIN because there's no
other appropriate voltage available on the demo board. In case of input voltage higher than 7V (PGOOD Pin
Maximum Absolute Rating) a 5V reference is required. Figure 12 shows the demo board's schematic circuit
Figure 12. 15A Demo Board Schematic
Error Amplifier
ωΖ1
ωΖ2
ωP1
ωP2
ωESR
R5/R3
Modulator Gain
Compensation Network Gain
Error Amplifier
Closed Loop Gain
ωLC
ω
dB
UGATE
PHASE
LGATE
PGND
PGOOD
VFB
SS
OSC
EAREF
VREF
R1
GND
VCC
BOOT
C17
C16
C21
C15
VIN
GNDIN
VCC
GNDCC
REFIN
GNDREFIN
+VREF
GNDREF
R7
R6
C13
Q1-3
Q4-6
D2
C14
G2
OCSET
COMP
5
12
15
7
8
1
4
2
13
14
10
11
9
3
6
S2
S1
S4
S5
S3
R10
SR12
SR13
R11
VOUT
PWRGD
GNDOUT
L2
L1
D1
C1-C3
C4-
11
D03IN1513
G1
F1
C19
C18
R5
R3
R8
R2
R9
R4
C20
C22
C12
VOUT
S2
Open Open Open Open
ON Open Open Open
ON
Open
Open Open
ON
ON Open Open
Open Open ON Open
Open Open Open ON
Open Open ON
ON
S3
S4
S5
0.9
1.2
1.5
1.8
2.5
3.3
5.0
相關PDF資料 |
PDF描述 |
|---|---|
| L6910GTR | 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6917BD | SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO28 |
| L6917BDTR | SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO28 |
| L6917D | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO28 |
| L6918ADTR | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO28 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L6910ATR | 功能描述:DC/DC 開關控制器 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 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 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 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 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 安裝風格: 封裝 / 箱體:CPAK |
| L6910RTR | 功能描述:DC/DC 開關控制器 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 安裝風格: 封裝 / 箱體:CPAK |
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