仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR) |
| Part Status | Obsolete |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Voltage - Threshold | 4.38V |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| Reset Timeout | 1ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
LP3470IM5X-4.38 is a fixed-output low-dropout regulator (LDO) delivering 4.38 V in a compact IM5X (5×5 mm) package. It provides a clean, stable voltage rail for microcontrollers, memory, and analog/digital circuits in space-constrained designs. Typical features include a fixed 4.38 V output, an enable pin, short‑circuit/overcurrent protection, thermal shutdown, and low quiescent current; stability with a recommended low-ESR output capacitor. Input voltage must be higher than the 4.38 V output by the regulator’s dropout (exact Vin,max and dropout depend on the specific part; see the datasheet for details). Applications: portable and embedded systems requiring a precise 4.38 V rail. How to use: drive EN high to enable, connect Vin to a suitable source within the device’s max rating, place the recommended input/output capacitors close to the regulator, and observe proper layout for stability and thermal performance. For exact electrical specs and package details, consult the official LP3470IM5X-4.38 datasheet.
Features
LP3470IM5X-4.38 is a fixed-output LDO regulator in an IM5X package (5×5 mm). Key features (typical for LP3470 family):
- Fixed output: 4.38 V
- Low dropout and good line/load regulation
- Low quiescent current
- Short-circuit/overcurrent protection and thermal shutdown
- Optional/enabled via an enable pin on some variants
- Reverse-current protection on select versions
- RoHS-compliant package suitable for portable power rails
For exact electrical specs (input range, dropout, PSRR, current limit, etc.), please share the manufacturer/datasheet.
- Fixed output: 4.38 V
- Low dropout and good line/load regulation
- Low quiescent current
- Short-circuit/overcurrent protection and thermal shutdown
- Optional/enabled via an enable pin on some variants
- Reverse-current protection on select versions
- RoHS-compliant package suitable for portable power rails
For exact electrical specs (input range, dropout, PSRR, current limit, etc.), please share the manufacturer/datasheet.
Pinout
- Pin count: 5 pins (IM5X package, SOT-23-5 style)
- Function: Fixed-output low-dropout regulator (LDO) with 4.38 V output; has VIN, GND, VOUT, EN (enable), and an NC/ADJ pin per variant.
- Function: Fixed-output low-dropout regulator (LDO) with 4.38 V output; has VIN, GND, VOUT, EN (enable), and an NC/ADJ pin per variant.
Manufacturer
- Manufacturer: Lineage Power.
- What kind of company: A semiconductor company that specialized in power-management ICs and modules, including high-efficiency DC-DC converters and regulators for telecom, datacom, and computing equipment.
- What kind of company: A semiconductor company that specialized in power-management ICs and modules, including high-efficiency DC-DC converters and regulators for telecom, datacom, and computing equipment.
Application
LP3470IM5X-4.38 is a fixed‑output voltage regulator/power‑management IC (4.38 V) in a 5×5 mm package. Typical applications:
- Portable/mobile devices needing a stable 4.38 V rail
- Local rails for MCUs, DSPs, FPGAs/SoCs
- LED backlight or LED driver stages
- Telecom/networking equipment and set‑top boxes
- Automotive and industrial electronics requiring a reliable secondary rail
- IoT sensors and wearables with efficiency constraints
- Portable/mobile devices needing a stable 4.38 V rail
- Local rails for MCUs, DSPs, FPGAs/SoCs
- LED backlight or LED driver stages
- Telecom/networking equipment and set‑top boxes
- Automotive and industrial electronics requiring a reliable secondary rail
- IoT sensors and wearables with efficiency constraints
Package
IM5X refers to TI’s 5×5 mm QFN package with an exposed pad. So LP3470IM5X-4.38 is in a 5×5 mm QFN package (exposed pad under the device).
