TPS65121 具有 1.8V 固定电压逻辑的 4 通道单电感器多路输出 (SIMO) 偏置 IC
TPS65121 描述
The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current PWM control scheme time-multiplexes the inductor between outputs. This control architecture operates at a pseudo-fixed-frequency to provide fast response to line and load transients while maintaining a relatively constant switching frequency and high efficiency over a wide range of input and output voltages. Due to the high switching frequency capability of the device, inexpensive and ultra-thin 8.2 or 10 µH inductors can be used.
|
TPS65120 |
TPS65121 |
TPS65123 |
TPS65124 |
| Vin(Min)(V) |
2.5 |
2.5 |
2.5 |
2.5 |
| Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
5.5 |
| Vout(Min)(V) |
3 |
3 |
3 |
3 |
| Vout(Max)(V) |
5.6 |
5.6 |
5.6 |
5.6 |
| LDO |
1 |
1 |
1 |
1 |
| DC/DC Converter |
3 |
3 |
3 |
3 |
| Pin/Package |
16QFN |
16QFN |
16QFN |
16QFN |
| Vlogic1 Ilim(Min)(A) |
LDO Controller |
LDO Controller |
|
|
| Vlogic1(Min)(V) |
Fixed 3.3V |
Fixed 1.8V |
|
|
| VGH / Vpos (Igh) |
Integrated 20V Max., 6mA |
Integrated 20V Max., 6mA |
Integrated 20V Max., 6mA |
Integrated 20V Max., 6mA |
| VGL / Vneg (Igl) |
Inverter -18V Max., 6mA |
Inverter -18V Max., 6mA |
Inverter -18V Max., 6mA |
Inverter -18V Max., 6mA |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Switching Frequency(Typ)(kHz) |
4000 |
4000 |
4000 |
4000 |
| AVDD Ilim(Min)(A) |
7.5mA / 25mA |
7.5mA / 25mA |
7.5mA / 25mA |
7.5mA / 25mA |
| Analog Voltage AV/DD(Max)(V) |
5.6 |
5.6 |
5.6 |
5.6 |
| Regulated Outputs(#) |
4 |
4 |
4 |
4 |
| Isolation Switch |
Internal |
Internal |
Internal |
Internal |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
| Function |
Display Bias |
Display Bias |
Display Bias |
Display Bias |
| Topology |
Boost, Inverting Buck/Boost |
Boost, Inverting Buck/Boost |
Boost, Inverting Buck/Boost |
Boost, Inverting Buck/Boost |
| Special Function |
|
|
|
Adjustable Sequencing |
| Duty Cycle(Max)(%) |
100 |
100 |
100 |
100 |
| Iq(Typ)(mA) |
0.181 |
0.181 |
0.181 |
0.181 |
| Target Application |
Small Form Factor |
Small Form Factor |
Small Form Factor |
Small Form Factor |
TPS65121 特性
- Main Output, VMAIN
- Adjustable Voltage, 3.0 V to 5.6 V/25 mA
- Post-Regulated for Low Ripple (5mVPP)
- ±0.8% Typical Accuracy
- Efficiency up to 83%
- Positive Output, VGH
- Adjustable Voltage up to 20 V/2 mA
- ±3% Typical Accuracy
- Negative Output, VGL
- Adjustable Voltage down to -18 V/2 mA
- ±3% Typical Accuracy
- Auxiliary 1.8 V/3.3 V Linear Regulator
- Automatic or Programmable Power Sequencing
- Complete 1 mm Component Profile Solution
- 2.5 V to 5.5 V Input Voltage Range
- Output Short Circuit Protected
- 16-Pin QFN Package (3 × 3 × 0,9 mm)
- APPLICATIONS
- Small Form Factor a-Si and LTPS TFT LCD
- Cell Phones, Smart Phones
TPS65121 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） | Quantity |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS65121RGTR |
ACTIVE |
-40 to 85 |
0.95 | 1ku |
QFN (RGT) | 16 |
3000 | LARGE T&R |
BKA |
| TPS65121RGTRG4 |
ACTIVE |
-40 to 85 |
0.95 | 1ku |
QFN (RGT) | 16 |
3000 | LARGE T&R |
BKA |
| TPS65121RGTT |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
QFN (RGT) | 16 |
250 | SMALL T&R |
BKA |
| TPS65121RGTTG4 |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
QFN (RGT) | 16 |
250 | SMALL T&R |
BKA |
TPS65121 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TPS65121RGTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65121RGTR |
TPS65121RGTR |
| TPS65121RGTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65121RGTRG4 |
TPS65121RGTRG4 |
| TPS65121RGTT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65121RGTT |
TPS65121RGTT |
| TPS65121RGTTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65121RGTTG4 |
TPS65121RGTTG4 |
TPS65121 应用技术支持与电子电路设计开发资源下载
- TPS65121 数据资料 dataSheet 下载.PDF
- TI 德州仪器照明解决方案产品选型与价格 . xls
- 照明和显示屏电源选择指南 (PDF 1427 KB)
- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- PowerPAD™ Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
TPS65121 相关工具
