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| 型号： | L6910ATR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | EXPOSED PAD, HTSSOP-16 |
| 文件页数： | 7/30页 |
| 文件大小： | 763K |
| 代理商： | L6910ATR |
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L6910 - L6910A
6.5 APPLICATION SUGGESTIONS FOR HIGHER CURRENTS
For higher output currents, up to 20A, the following configuration can be used (with reference to the demo board
schematic):
Q1,Q2,Q3: STS11NF30L
Q4,Q5,Q6: STS17NF3LL
L: 2.5
H Magnetic 77121A7 Core 7T 2x AWG16
In these conditions, the following performance have been achieved:
Table 8.
For currents higher than 20A, bigger mosfets should be selected (e.g. STS25NH3LL) both for the high side and
low side (depending on the duty cycle and input voltage).
7
6A DEMO BOARD DESCRIPTION
A compact demo board has been realized to manage currents in the range of 5A-6A .
The external power mosfets are included in a single SO8 package to save space and increase power density.
Two separate rails are provided, for VCC and VIN. They can be connected together by shorting the jumper J1.
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 Ab-
solute Rating) a 5V reference is required.
Figure 17. 6A Demo Board Schematic
VIN (V)
VOUT (V)
IOUT (A)
η (%)
VIN (V)
VOUT (V)
IOUT (A)
η (%)
5
1.2
20
81
12
1.2
20
80
5
1.5
20
83
12
1.5
20
83
5
1.8
20
85
12
1.8
20
85
5
2.5
20
89
12
2.5
20
88
5
3.3
20
91
12
3.3
20
91
12
5
20
93
L1
R7
C1- C2
C7
C3-4
Q1/Q1
D2
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
VFB
COMP
C19
R10
C9
C6
D1
GNDOUT
GNDIN
R2
C8
C5
R6
C18
8
GNDCC
VCC
R5
J1
R3
R4
C20
EAREF
BOOT
R1
C10
R11
Q2/Q1
R8
R9
L1
R7
C1- C2
C7
C3-4
Q1/Q1
D2
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
VFB
COMP
C19
R10
C9
C6
D1
GNDOUT
GNDIN
R2
C8
C5
R6
C18
8
GNDCC
VCC
R5
J1
R3
R4
C20
EAREF
BOOT
R1
C10
R11
Q2/Q1
R8
R9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6910G | 功能描述:电压模式 PWM 控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| L6910GTR | 功能描述:电压模式 PWM 控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| L6910R | 功能描述:DC/DC 开关控制器 5.0 to 12V Step-Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6910RTR | 功能描述:DC/DC 开关控制器 5.0 to 12V Step-Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6910S | 功能描述:DC/DC 开关控制器 5.0 to 12V Step-Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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