- 您现在的位置：买卖IC网 > PDF目录244229 > TPS62122DRV (TEXAS INSTRUMENTS INC) SWITCHING REGULATOR, PDSO6 PDF资料下载
参数资料
| 型号： | TPS62122DRV |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, PDSO6 |
| 封装： | 2 X 2 MM, GREEN, PLASTIC, SON-6 |
| 文件页数： | 14/33页 |
| 文件大小： | 5549K |
| 代理商： | TPS62122DRV |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页
VIN
EN
FB
TPS62120
PG
L 22 H
SW
C
4.7 F
OUT
V
1.8 V
100 A
OUT
GND
R1
R2
SGND
VOUT
C
10
IN
F
300 kW
240 kW
Cff
Rpullup
PWR GOOD
100 kW
22 pF
DC
12 V
1 kW
High Impedance
Source
(
)
(
)
1
2
OUT
REF
R
OUT
REF
R
V
1
2
V
= V
1 +
with an internal reference voltage VREF typical 0.8 V
R =
1
R
-
z
1
f f
1
=
= 25 kHz
2
R
C
f
p
1
C
=
2
R
25 kHz
ff
p
www.ti.com
SLVSAD5 – JULY 2010
Figure 38. TPS62120 1.8V VOUT Configuration Powered from a High-Impedance Source
OUTPUT VOLTAGE SETTING
The output voltage can be calculated to:
(5)
To minimize the current through the feedback divider network, R2 should be within the range of 82kΩ to 360k.
The sum of R1 and R2 should not exceed ~1MΩ, to keep the network robust against noise. An external
feed-forward capacitor Cff is required for optimum regulation performance. R1 and Cff places a zero in the
feedback loop.
(6)
The value for Cff can be calculated as:
(7)
Table 1 shows a selection of suggested values for the feedback divider network for most common output
voltages.
Table 1. Suggested Values for Feedback Divider Network
Voltage Setting [V]
3.06
3.29
2.00
1.80
1.20
5.00
R1 [k
]
510
560
360
300
180
430
R2 [k
]
180
240
360
82
Cff [pF]
15
22
27
15
OUTPUT FILTER DESIGN (INDUCTOR AND OUTPUT CAPACITOR)
The TPS6212X operates with effective inductance values in the range of 10H to 33H and with effective output
capacitance in the range of 1F to 33F. The device is optimized to operate for an output filter of L = 22H and
COUT = 4.7F. Larger or smaller inductor/capacitor values can be used to optimize the performance of the device
for specific operation conditions. For more details, see the CHECKING LOOP STABILITY section.
Copyright 2010, Texas Instruments Incorporated
21
相关PDF资料 |
PDF描述 |
|---|---|
| TC151A4316EOA713 | 0.25 A SWITCHING REGULATOR, 50 kHz SWITCHING FREQ-MAX, PDSO8 |
| TC151B1622EOA723 | 0.25 A SWITCHING REGULATOR, 50 kHz SWITCHING FREQ-MAX, PDSO8 |
| TC161B3517EOA713 | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
| TC161B1719EOA723 | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
| TC161B3321EOA723 | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS62122DRVR | 功能描述:直流/直流开关转换器 15V75mA96% Eff Step-Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS62122DRVT | 功能描述:直流/直流开关转换器 15V75mA96% Eff Step-Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS62122DRVT | 制造商:Texas Instruments 功能描述:IC SYNC BUCK DC/DC CONTROLLER 800KHZ 制造商:Texas Instruments 功能描述:IC, SYNC BUCK DC/DC CONTROLLER, 800KHZ, 6-SON |
| TPS62122EVM-586 | 功能描述:电源管理IC开发工具 TPS62122 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 |
| TPS62122EVM-586 | 制造商:Texas Instruments 功能描述:EVAL BOARD, TPS62122, BUCK CONVERTER |
发布紧急采购，3分钟左右您将得到回复。