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| 型号： | TPS65167ARHARG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 4.9 A SWITCHING REGULATOR, 900 kHz SWITCHING FREQ-MAX, PQCC40 |
| 封装： | 6 X 6 MM, GREEN, PLASTIC, MO-220VJJD-2, QFN-40 |
| 文件页数： | 21/41页 |
| 文件大小： | 1270K |
| 代理商： | TPS65167ARHARG4 |
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39
FBLDO
Vaux
1.5V/500mA
40
C22
1 F
m
C23
22 F
m
Q2
PZT2907A
R11
1.6kW
R12
6.8kW
R13
1kW
R14*
100 W
Vlogic
3.3V
5
*Optional
PGND
BASE
Setting the output voltage, LDO controller
Vout + 1.213 V
1 )
R11
R12
(15)
Input Capacitor and Output Capacitor Selection, LDO Controller
Base and Emitter Base Resistor Selection
SLVS760C – APRIL 2007 – REVISED MARCH 2008
Figure 30. LDO Controller Block TPS65167
The output voltage of the LDO controller can be set with the resistor divider connected to the output of the LDO
controller. To set the LDO controller output voltage to 1.2V the feedback FBLDO can be connected directly to the
output. Any other output voltages is set using the external resistor divider and is calculated as:
For input voltage filtering, a 1-
F input capacitor is sufficient. The output requires a least one 10-F output
capacitor for stability for load currents up to 300-mA. For load currents larger 300 mA, one 22-
F output
capacitor is required. See Table 13 for the capacitor selection.
Table 13. Output Capacitor Selection
CAPACITOR
Iout
COMPONENT SUPPLIER
COMMENT
1
F/10 V
Taiyo Yuden LMK107BJ105KK
Input capacitor
10
F/10 V
≤300 mA
Taiyo Yuden LMK212BJ106KG
Output capacitor
22
F/10 V
>300 mA
Taiyo Yuden LMK212BJ226MG
Output capacitor
A 1-k
resistor (R13) is required across the emitter base of the external transistor. To limit the current into the
base during a short-circuit event, a 100-
base resistor (R4) is required when the input is connected to the 3.3-V
rail. If the input is connected to the 12-V rail, then a 1-k
(R4) resistor is required. R4 is optional and protects the
TPS65167 in case of a short-circuit event at the output of the LDO controller.
28
Copyright 2007–2008, Texas Instruments Incorporated
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| TPS65167EVM-277 | 功能描述:电源管理IC开发工具 TPS65167 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS65167RHAR | 功能描述:其他电源管理 Compact LCD Bias Supply RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| TPS65167RHARG4 | 功能描述:LCD 驱动器 12V/3.5A(I/O) 4-CH Multi-Converter RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TPS65167RHAT | 功能描述:其他电源管理 Compact LCD Bias Supply RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| TPS65167RHATG4 | 功能描述:LCD 驱动器 12V/3.5A(I/O) 4-CH Multi-Converter RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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