LM26400YMHIn StockTexas Instruments
LM26400YMH is a dual-output current-mode PWM buck switching regulator IC from Texas Instruments. It delivers 2A per channel with adjustable output voltage down to 0.6V, supporting 3V to 20V input range. Ideal for point-of-load power conversion in industrial, communications, and consumer electronics applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- LM26400YMH Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-output current-mode PWM control for tight transient response and improved noise immunity
- Wide input voltage range of 3V to 20V supports diverse power supply designs
- Adjustable output voltage from 0.6V enables low-voltage rail generation for modern SoCs
- 2A per channel output current in compact 16-pin PowerTSSOP package saves board space
- Pulse Width Modulation control technique ensures high efficiency across load range
Applications
The LM26400YMH is well-suited for point-of-load DC-DC conversion in industrial automation equipment, networking and communications infrastructure, and embedded computing platforms. Its dual-output capability makes it ideal for powering multiple voltage rails—such as core and I/O supplies—from a single regulator IC. The device is also commonly used in battery-powered portable instruments and set-top boxes where space-efficient, high-efficiency power management is critical.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e0 |
| Number of Functions | 2 |
| Output Current-Max | 2A |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 500kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the LM26400YMH?
The LM26400YMH operates over a wide input voltage range of 3V to 20V, with a nominal input of 5V. This makes it compatible with standard 5V, 12V, and intermediate bus voltage systems commonly found in industrial and communications equipment.
How many outputs does the LM26400YMH support and what is the maximum output current?
The LM26400YMH features two independent buck regulator outputs, each capable of delivering up to 2A of continuous output current. The output voltage on each channel is independently adjustable down to 0.6V, allowing flexible multi-rail power supply designs.
What control topology does the LM26400YMH use?
The LM26400YMH uses current-mode pulse width modulation (PWM) control. This topology provides fast transient response, inherent cycle-by-cycle current limiting, and simplified loop compensation compared to voltage-mode controllers, making it easier to design stable power supplies.
What package does the LM26400YMH come in and what are its dimensions?
The LM26400YMH is available in a 16-pin PowerTSSOP package with a body width of approximately 4.40mm (0.173 inches). This small outline package is RoHS-compatible and suited for high-density PCB layouts.
What are typical applications for the LM26400YMH?
Typical applications include point-of-load power conversion for FPGAs and microprocessors, dual-rail supplies in networking switches and routers, industrial control systems, and consumer electronics requiring compact and efficient multi-output step-down regulators.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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