LTC3410ESC6-1.2 - 300mA 2.25MHz Buck Regulator | ADI
料号： LTC3410ESC6-1.2 ✓ 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 |
LTC3410ESC6-1.2 概述
A buck converter is a switching DC-DC converter that steps a higher input voltage down to a lower regulated voltage using controlled switching of an inductor and energy-storage components. The LTC3410 belongs to the hierarchy of DC-DC converter, voltage regulator, and power-management IC. Its high switching frequency permits small inductors and capacitors, making it useful where PCB area and load-transient response are important.
The main features are 300mA rated output current, fixed 1.2V operation, 2.25MHz internal switching frequency, and a 2.25V to 5.5V supply range. According to the Analog Devices product page, the LTC3410 family supports outputs from 0.8V to 5V, with the selected -1.2 suffix fixing this version at 1.2V. The family also offers high-efficiency operation, low-dropout behavior through 100% duty-cycle operation, and Burst Mode for low output ripple and reduced light-load consumption.
The synchronous implementation avoids an external Schottky diode and supports compact power conversion around single-cell Li-ion systems. At a 3V input, one verified source reports up to 380mA minimum peak-switch-current capability for another listed family condition, but the specified product rating for LTC3410ESC6-1.2 remains 300mA. Designers should use the manufacturer datasheet for absolute maximum ratings, compensation details, efficiency curves, and thermal limits.
Typical applications include single-cell Li-ion battery rails, portable sensors, compact wireless peripherals, low-voltage digital processors, handheld measurement equipment, and IoT devices powered from 3.3V or single-cell sources. The fixed 1.2V output is particularly useful for low-voltage core rails where space, efficiency, and predictable external component selection matter.
The principal design consideration is inductor and capacitor selection around the 2.25MHz switching frequency. Keep the switching loop compact, use recommended high-frequency components, and verify output ripple, startup behavior, efficiency, and thermal performance across the intended input and load range. Pin assignments and unused-pin requirements must be checked against the manufacturer datasheet before PCB release.
This page combines verified distributor and manufacturer information with focused design guidance. It also distinguishes confirmed public data from parameters that still require datasheet confirmation, helping engineers source and evaluate the regulator without inserting unverified values into a design.
直接替换替代料： LTC3410ESC6-1.2 ——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：
LTC3410ESC6-1.2#PBF
✅ 直接替换📋 参考替代料（不在目录中）
LTC3410ESC6-1.2#TRPBF
✅ 直接替换📋 参考替代料（不在目录中）
LTC3410ESC6-1.8
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LTC3410ESC6-2.5
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LTC3410ESC6-3.3
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LTC3410ESC6-1.2 最大额定值与电气特性
| 拓扑 | Synchronous step-down buck regulator |
| 输出类型 | Positive fixed |
| Fixed Output Voltage | 1.2 V |
| 输出数量 | 1 output |
| 输入电压范围 | 2.25 V to 5.5 V |
| Rated Output Current | 300 mA |
| 开关频率 | 2.25 MHz |
| 效率 | Up to 96% |
| Output Ripple | 20 mVP-P |
| Burst Mode Quiescent Current | 26 uA |
| Switching Duty Cycle | Up to 100% |
| Minimum Peak Switch Current at VIN 3V | 380 mA |
| 封装 | 6-pin SC-70 / SC-88 / SOT-363 |
| Package Family | SC-70 surface-mount family |
| 安装类型 | Surface mount |
| Lifecycle Stage | Active |
| Lead-Free Status | Lead-free plastic package |
LTC3410ESC6-1.2 sc-70 surface-mount family 引脚配置指南
LTC3410ESC6-1.2（sc-70 surface-mount family 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： LTC3410ESC6-1.2.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LTC3410ESC6-1.2 适用于 6 应用s: Single-Cell Li-Ion Power Rail, Portable Sensor and IoT Node, Battery-Powered Handheld Instrument, Low-Voltage Wireless Peripheral, Compact Industrial Sensor Hub, Low-Voltage Processor Core Supply.
Single-Cell Li-Ion Power Rail
The LTC3410ESC6-1.2 converts a 2.25V-to-5.5V source into a regulated 1.2V rail for low-voltage loads. Its 2.25MHz switching frequency supports small external components, while the synchronous architecture and efficiency reported up to 96% suit compact battery-powered equipment. The -1.2 suffix fixes the nominal output at 1.2V, unlike adjustable family versions. Designers must confirm battery voltage range, protection requirements, startup behavior, and peak load current in the complete power path.
推荐
Portable Sensor and IoT Node
The LTC3410ESC6-1.2 fits compact IoT and sensor assemblies that operate from a 3.3V rail and need a lower 1.2V internal supply. Its 300mA rating covers moderate sensor, radio, and logic loads, while the high 2.25MHz switching rate permits a small inductor and compact output network. Burst Mode is listed at 26uA quiescent current, which can help during light-load periods, but average current and wake-up behavior must be checked over the complete duty cycle.
推荐
Battery-Powered Handheld Instrument
A handheld measurement device can use the LTC3410ESC6-1.2 to derive 1.2V from a rechargeable-cell or regulated 3.3V supply. The fixed output simplifies feedback design, and the 6-pin SC-70-class footprint conserves board area. Verified family specifications report low output ripple of 20mVP-P and high-efficiency operation up to 96%, helping designers balance conversion loss against noise-sensitive analog performance. Actual rail noise, load transients, and analog accuracy still require end-to-end measurement.
推荐
Low-Voltage Wireless Peripheral
The LTC3410ESC6-1.2 can supply a compact wireless accessory when the radio or digital block requires a stable low rail. The 2.25MHz regulator allows small magnetics, and its synchronous topology supports efficient conversion from a 3.3V source. The fixed 1.2V output must match the wireless module's actual power-domain requirement; it should not replace a 3.3V or 1.8V rail without confirming sequencing and RF current demand. Include RF filtering and separate sensitive analog rails where needed.
推荐
Compact Industrial Sensor Hub
The regulator is suitable for a compact sensor hub that accepts a 5V input and powers a 1.2V internal rail. Its 300mA rating and high switching frequency make it useful for distributed sensing electronics where 5V is available locally but local logic requires a lower rail. Industrial temperature range, surge tolerance, and long-term availability must be verified because the supplied evidence only confirms active lifecycle status and does not state an operating-temperature range. Place input and output capacitors close to their pins.
推荐
Low-Voltage Processor Core Supply
LTC3410ESC6-1.2 can generate a 1.2V auxiliary or core-related rail when the load remains within 300mA and the upstream supply is within its input range. The fixed output reduces external setpoint components, and 100% duty-cycle operation supports low-dropout behavior in suitable operating conditions. It does not provide the complete power sequencing of a multi-rail processor system, so enable control, startup order, and load-dump behavior must be validated. Avoid using it where transient demand exceeds its rating.
推荐
推荐产品汇总
工程参考数据： LTC3410ESC6-1.2 ——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 | LTC3410ESC6-1.2#PBF | LTC3410ESC6-1.2#TRPBF | LTC3410ESC6-1.8 | LTC3410ESC6-2.5 | LTC3410ESC6-3.3 |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 6-TSSOP, SC-88, SOT-363 | 6-TSSOP, SC-88, SOT-363 | 6-TSSOP, SC-88, SOT-363 | 6-TSSOP, SC-88, SOT-363 | 6-TSSOP, SC-88, SOT-363 | 6-TSSOP, SC-88, SOT-363 |
| Topology | Synchronous buck | Synchronous buck | Synchronous buck | Synchronous buck | Synchronous buck | Synchronous buck |
| Fixed Output Voltage | 1.2V | 1.2V | 1.2V | 1.8V | 2.5V | 3.3V |
| Rated Output Current | 300mA | 300mA | 300mA | 300mA | 300mA | 300mA |
| Switching Frequency | 2.25MHz | 2.25MHz | 2.25MHz | 2.25MHz | 2.25MHz | 2.25MHz |
关键差异点
- Fixed 1.2V output for compact low-voltage rails （对比 LTC3410ESC6-1.8)
- High switching frequency supports miniaturized passives （对比 LTC3410ESC6-3.3)
- Base ordering code versus packaged procurement variants （对比 LTC3410ESC6-1.2#TRPBF)
设计说明
The verified 300mA output rating is the primary design boundary; do not treat the 380mA minimum peak-switch-current value reported for VIN = 3V as permission for a 380mA regulated load. That figure concerns a different specified condition and must be interpreted through the manufacturer datasheet. Size the inductor for saturation margin and RMS current, and verify the regulator's current limit, thermal behavior, and output-voltage droop across startup, load steps, and the full input range.
Place input capacitors, the IC, the switching node, and the output capacitor in the smallest practical high-current loop. Keep the 2.25MHz switch node compact and away from antenna routes, sensor inputs, crystal circuitry, and precision analog traces. Use the manufacturer's application-circuit layout as the starting point, provide adequate ground return, and preserve the exposed package thermal path. Verify the final arrangement with thermal imaging and near-field measurements because SC-70 packages can be sensitive to copper and via placement.
Do not substitute a fixed-output suffix or adjustable LTC3410 variant solely because the SC-70 package matches. A 1.8V, 2.5V, or 3.3V fixed version changes the rail value, while an adjustable version changes the feedback topology and tolerance. Similarly, #PBF, #TRPBF, and base ordering codes can differ in lead-free status, reel format, or purchasing channel. Confirm the exact order code, official pin functions, feedback method, and external-component values against the current manufacturer datasheet.
合规信息
The verified DigChip result identifies the SC-70 package as lead-free plastic, and the distributor listings include #PBF lead-free order codes. RoHS, REACH, halogen-free, and conflict-minerals status were not explicitly supplied and therefore remain unknown. AEC-Q100 is marked not applicable because this is a DC-DC converter rather than an automotive-qualified component; automotive qualification is not established by the provided data.
