TPS61086DRCR - 18.5V 2A Boost Converter 1.2MHz | Texas Instruments
料号： TPS61086DRCR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TPS61086DRCR 概述
A boost converter, also known as a step-up converter, is a type of DC-DC switching regulator that produces an output voltage higher than its input voltage. It is a fundamental building block in power management, sitting within the hierarchy of switching regulators, which belong to the broader category of power management integrated circuits (PMICs). Boost converters are essential in battery-powered applications where the battery voltage is lower than the required system rail.
Key features include a 2.0-A switch current limit, an adjustable output voltage from 2.8 V to 18.5 V, and a power save mode for improved efficiency at light loads, with the option to force PWM operation. The device also features adjustable soft-start to limit inrush current, thermal shutdown protection, and low quiescent current. The integrated 0.13-ohm switch minimizes conduction losses, contributing to high efficiency across a wide load range.
The TPS61086 uses a current-mode control architecture with a fixed 1.2-MHz switching frequency, balancing efficiency and external component size. The high switching frequency enables small, low-profile inductors and ceramic capacitors, reducing overall solution footprint. Power save mode reduces switching frequency at light loads to maintain efficiency, and forced PWM mode supports noise-sensitive applications.
Typical applications include battery-powered portable devices, white LED drivers, OLED display bias, and general-purpose step-up voltage regulation. The wide input range and high output capability suit loads requiring voltages above the battery rail. The small package and high efficiency make it ideal for space-constrained designs.
When designing with the TPS61086DRCR, ensure proper PCB layout with short, low-inductance paths for the switch node and output capacitor. The exposed pad should be soldered to a large copper area for thermal dissipation, and the inductor saturation current must exceed the peak switch current for stable operation.
直接替换替代料： TPS61086DRCR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TPS61085DRCR
⚡ 相同封装📋 参考替代料（不在目录中）
TPS61086DRCR 最大额定值与电气特性
| 拓扑 | Step-Up (Boost) |
| 输入电压范围 | 2.3 V to 6.0 V |
| 输出电压范围 | 2.8 V to 18.5 V (adjustable) |
| 输出数量 | 1 |
| Switch Current | 2.0 A (integrated switch) |
| Switch On-Resistance | 0.13 ohm |
| 开关频率 | 1.2 MHz (fixed PWM) |
| Control Mode | PFM/PWM, current mode |
| Power Save Mode | Yes (improved light-load efficiency; forced PWM option) |
| 软启动 | Adjustable |
| Protection Features | Thermal shutdown |
| Output Polarity | Positive |
| 封装 | 10-VFDFN Exposed Pad (VSON, DRC) |
| 安装类型 | Surface Mount |
| 分类 | PMIC - Voltage Regulators, DC/DC Switching Regulators |
TPS61086DRCR 10-vfdfn exposed pad (vson, drc) 引脚配置指南
TPS61086DRCR（10-vfdfn exposed pad (vson, drc) 封装）的引脚配置。 该功率器件具有栅极、漏极和源极端子。对于无极性封装，请参阅制造商数据手册以了解确切的引脚 1 方向和封装尺寸细节。常见应用包括电源设计、电机驱动和负载开关。
暂无详细引脚数据： TPS61086DRCR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TPS61086DRCR 适用于 6 应用s: Battery-Powered Portable Devices, White LED Driver, OLED Display Bias, General-Purpose Step-Up Regulation, Industrial and Automation Auxiliary Supplies, Test and Measurement Equipment.
Battery-Powered Portable Devices
The TPS61086DRCR fits portable electronics because its 2.3-V to 6.0-V input range covers single-cell Li-ion and two-cell alkaline supplies, while the integrated 2.0-A, 0.13-ohm switch supplies system rails above the battery voltage without an external FET. The 1.2-MHz fixed PWM frequency allows small, low-profile inductors and ceramic capacitors, minimizing board area in handheld form factors. Power save mode maintains efficiency when the load drops during standby, extending battery runtime, and adjustable soft-start limits inrush current at power-on.
推荐
White LED Driver
White LED strings often need more voltage than a battery can supply, and the TPS61086DRCR boosts up to 18.5 V from inputs as low as 2.3 V, enough for several series LEDs. The fixed 1.2-MHz PWM operation keeps switching artifacts above the audio band and outside the visible flicker region, while forced-PWM mode provides predictable ripple for consistent brightness. The 0.13-ohm internal switch reduces conduction loss, and the exposed thermal pad of the DRC-10 package dissipates heat from LED driver power levels.
推荐
OLED Display Bias
OLED panels require stable positive rails higher than the battery voltage, and the TPS61086DRCR generates up to 18.5 V with the 2.0-A switch providing headroom for panel brightness transients. The fast transient response of the 1.2-MHz current-mode control handles dynamic load changes when display content changes, and forced-PWM operation holds ripple low and constant, which matters for avoiding visible artifacts. Adjustable soft-start prevents inrush that could brown out the shared battery rail during panel startup.
推荐
General-Purpose Step-Up Regulation
For boards that need a 12-V or 15-V auxiliary rail from a 5-V or 3.3-V supply, the TPS61086DRCR provides a compact single-IC solution: the integrated 2.0-A switch and adjustable feedback divider set any output from 2.8 V to 18.5 V with two resistors. The 1.2-MHz frequency keeps external magnetics small for space-constrained industrial boards, and the exposed-pad VSON package with thermal shutdown gives robustness at sustained loads. Power save mode keeps light-load efficiency high for always-on systems.
推荐
Industrial and Automation Auxiliary Supplies
Industrial control boards frequently need a boosted analog or gate-drive rail derived from a low-voltage logic supply, and the TPS61086DRCR's 2.3-V to 6.0-V input and 18.5-V maximum output cover these cases. Thermal shutdown and adjustable soft-start improve fault tolerance on factory floors, while the fixed 1.2-MHz switching frequency simplifies EMI filter design with a predictable spectral signature. Forced-PWM mode keeps output impedance low and predictable for sensitive analog circuits sharing the boosted rail.
推荐
Test and Measurement Equipment
Portable instruments and probe accessories often run from battery packs yet need bias rails well above the battery voltage, and the TPS61086DRCR provides up to 18.5 V with fast 1.2-MHz regulation for load steps. The low 0.13-ohm switch resistance limits self-heating in enclosed instruments, and the exposed pad enables copper-pour heat spreading on multilayer boards. Adjustable soft-start sequencing prevents supply contention with other converters during power-up of measurement front ends.
推荐
推荐产品汇总
工程参考数据： TPS61086DRCR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TPS61085DRCR |
|---|---|---|
| Package | 10-VFDFN Exposed Pad (DRC) | 10-VFDFN Exposed Pad (DRC) - same |
| Brand | Texas Instruments | Texas Instruments |
| Maximum Output Voltage | 18.5 V | 18.5 V |
| Package Match | Baseline | Same DRC-10 footprint |
关键差异点
- Higher switch current in the same family footprint （对比 TPS61085DRCR)
- Low on-resistance integrated switch （对比 TPS61085DRCR)
- Forced-PWM option for noise-sensitive rails （对比 TPS61085DRCR)
设计说明
Place the input capacitor, output capacitor, and inductor as close as possible to the TPS61086DRCR with short, low-inductance switch-node traces. The exposed pad on the bottom of the 10-pin VSON (DRC) package must be soldered to a substantial copper pour connected to ground to dissipate switching losses; a poor exposed-pad connection is the most common cause of thermal shutdown in production boards.
Select an inductor with a saturation current rating above the peak switch current, which can reach the 2.0-A limit of the integrated switch. If the inductor saturates before the current limit, regulation collapses and ripple spikes. The 1.2-MHz fixed frequency allows smaller inductance values, but verify the DC-bias derating curve of the chosen inductor at the actual peak current.
The TPS61086 operates at a fixed 1.2 MHz, which concentrates switching energy at a predictable frequency and simplifies EMI filter design compared with variable-frequency converters. If radiated emissions are marginal, use forced-PWM mode only where necessary and add a small RC snubber on the switch node; power save mode naturally reduces average switching activity at light load.
Use the adjustable soft-start pin to limit inrush current when the boost output charges the output capacitance from a weak battery or a current-limited upstream supply. Omitting soft-start can cause the input rail to sag below the 2.3-V minimum UVLO and trigger nuisance restart loops during startup into large loads.
合规信息
Compliance data not present in the provided verified web data; consult the TI product page quality section for RoHS/REACH status.
