DATA SHEET
TPS6305x 开关电流为 1A、具备可调节软启动功能的单电感降压-升压转换器
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1 特性
- 实时降压或升压，支持在降压和升压模式之间无缝转换
- 输入电压范围为 2.5V 至 5.5V
- 0.5A 持续输出电流：VIN ≥ 2.5V、
VOUT = 3.3V - 具有可调节输出电压和固定输出电压两个版本可选
- 在升压模式中效率大于 90%，在降压模式中效率大于 95%
- 开关频率典型值为 2.5MHz
- 平均输入电流限制可调节
- 软启动时间可调节
- 器件静态电流小于 60μA
- 具有自动节电模式或强制 PWM 模式
- 关断期间负载断开
- 提供过热保护
- 采用 1.6mm x 1.2mm、12 引脚 WCSP 小型封装和 2.5mm x 2.5mm、12 引脚、HotRod™ QFN 封装
- 借助以下工具创建定制设计方案：
- TPS63050，使用 WEBENCH® 电源设计器
- TPS63051，使用 WEBENCH® 电源设计器
2 应用
- 手机和智能电话
- 平板电脑
- PC 和智能手机附件
- 通过电池供电的 应用
- 智能电网/智能仪表
3 说明
TPS6305x 系列器件是一款静态电流较低的高效降压/升压转换器 ， 适用于输入电压高于或低于输出电压的应用。
在升压模式下，持续输出电流最高可达 500mA；在降压模式下，持续输出最高可达 1A。最大平均开关电流限制为 1A（典型值）。TPS6305x 系列器件在整个输入电压范围内针对输出电压进行稳压操作，可根据输入电压自动切换为降压或升压模式，从而在两种模式之间实现无缝转换。
该降压/升压转换器基于使用同步整流的固定频率 PWM 控制器，可实现最高效率。在负载电流较低的情况下，该转换器进入节能模式，从而在整个负载电流范围内保持高效率。
用户可以通过脉频调制 (PFM)/PWM 引脚选择自动 PFM/PWM 工作模式或强制 PWM 工作模式。在 PWM 模式下通常使用 2.5MHz 固定频率。使用一个外部电阻分压器可对输出电压进行编程，或者在芯片上对输出电压进行内部固定。转换器可被禁用以最大限度地减少电池消耗。在关断期间，负载从电池上断开。该器件采用 12 引脚芯片尺寸球状引脚栅格阵列 (DSBGA) 封装和 12 引脚 HotRod 封装。
器件信息(1)
| 器件型号 | 封装 | 封装尺寸（标称值） |
|---|---|---|
| TPS63050
TPS63051 |
DSBGA (12) | 1.56mm x 1.16mm |
| VQFN (12) | 2.50mm x 2.50mm |
- 如需了解所有可用封装，请参阅数据表末尾的可订购产品附录。
4 修订历史记录
Changes from C Revision (July 2015) to D Revision
- 在数据表中添加了 Webench 链接Go
- Changed the Pin ConfigurationsGo
- Changed the quiescent current VIN max value From: 60 µA To: 65 µA in the Electrical CharacteristicsGo
- Added Note: Conditions: TJ = –40°C to 85°C To the quiescent current and shutdown current in the Electrical CharacteristicsGo
Changes from B Revision (April 2015) to C Revision
- Added 新封装选项至 项目符号Go
- Added VQFN 封装至器件信息表Go
- Added HotRod Pin Configuration and Functions Go
- Added Parameter Measurement Circuit for HotRod package optionGo
Changes from A Revision (February 2014) to B Revision
- Changed 说明 部分的第四段 Go
- Changed 图形图像 Go
- Changed Ordering Information table To:Device Comparison TableGo
- Changed "Handling Ratings" table to "ESD Rating" table and moved Tstg spec to the Absolute Maximum Ratings tableGo
- Moved some Typical Characteristics graphs to the Application Curves section Go
Changes from * Revision (July 2013) to A Revision
5 Device Comparison Table
| PART NUMBER (1) | VOUT | |
|---|---|---|
| TPS63050 | Adjustable | |
| TPS63051 | 3.3 V | |
(1) For all available packages, see the orderable addendum at the end of the datasheet
6 Pin Configuration and Functions
YFF Package
12-Pin DSBGA
Top View
Pin Functions
| PIN | I/O | DESCRIPTION | ||
|---|---|---|---|---|
| NAME | WCSP | HotRod | ||
| EN | A3 | 11 | I | Enable input. (1 enabled, 0 disabled). It must not be left floating |
| FB | D2 | 5 | I | Voltage feedback of adjustable versions, must be connected to VOUT on fixed output voltage versions1 |
| GND | B1 | 2,9 | Ground for Power stage and Control stage | |
| ILIM0 | B2 | 10 | I | Programmable inrush current limit input works together with lLIM1. See table on page 1.
It must not be left floating |
| ILIM1 | B3 | See (1) | I | Programmable inrush current limit input works together with lLIM0.
See 效率与输出电流间的关系 on page 1. Do not leave floating |
| L1 | A1 | 1 | Connection for Inductor | |
| L2 | C1 | 3 | Connection for Inductor | |
| PFM/PWM | C2 | 6 | I | 0 for PFM mode 1 for forced PWM mode. It must not be left floating |
| PG | C3 | 8 | O | Power good open drain output |
| SS | D3 | 7 | I | Adjustable Soft-Start. If left floating default soft-start time is set |
| VIN | A2 | 12 | I | Supply voltage for power stage and control stage |
| VOUT | D1 | 4 | O | Buck-boost converter output |
(1) Only available with DSBGA package, for VQFN package ILIM1 is internally connected to voltage level > VIH
7 Specifications
7.1 Absolute Maximum Ratings
over junction temperature range (unless otherwise noted) (4)| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Voltage(1) | VIN, L1, EN, VOUT, FB, VINA, PFM/PWM | –0.3 | 7 | V |
| L2(2) | –0.3 | 7 | ||
| L2(3) | –0.3 | 9.5 | ||
| Operating junction temperature, TJ | –40 | 150 | °C | |
| Operating ambient temperature, TA | –40 | 85 | °C | |
| Storage temperature, Tstg | –65 | 150 | °C | |
(1) All voltage values are with respect to network ground pin.
(2) DC voltage rating.
(3) AC voltage rating.
(4) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
7.2 ESD Ratings
| VALUE | UNIT | |||
|---|---|---|---|---|
| V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±1500 | V |
| Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±700 | |||
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
7.3 Recommended Operating Conditions
| See (1) | MIN | NOM | MAX | UNIT | |
|---|---|---|---|---|---|
| VIN | Input voltage | 2.5 | 5.5 | V | |
| IOUT | Output current | 0.5 | A | ||
| L | Inductance(3) | 1 | 1.5 | 2.2 | µH |
| COUT | Output capacitance(2) | 10 | µF | ||
| TA | Operating ambient temperature | –40 | 85 | °C | |
| TJ | Operating virtual junction temperature | –40 | 125 | °C |
(1) Refer to the Application Information section for further information
(2) Due to the DC bias effect of ceramic capacitors, the effective capacitance is lower then the nominal value when a voltage is applied. This is why the capacitance is specified to allow the selection of the nominal capacitor required with the DC bias effect for this type of capacitor. The nominal value given matches a typical capacitor to be chosen to meet the minimum capacitance required.
(3) Effective inductance value at operating condition. The nominal value given matches a typical inductor to be chosen to meet the inductance required.
