LM27342SDIn StockTexas Instruments
LM27342SD is a current-mode PWM step-down DC/DC regulator with 3V–20V input range, adjustable output from 1V to 18V, and up to 1.5A output current. Ideal for portable and industrial power applications.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 10
- Lifecycle
- OBSOLETE
- Datasheet
- LM27342SD 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
- Current-mode PWM control for fast transient response and excellent line/load regulation
- Wide input voltage range: 3V to 20V, supports 5V, 12V, and automotive rails
- Adjustable output voltage from 1V to 18V covers diverse regulation needs
- Compact 10-pin MSOP package enables high-density PCB layouts
- Pulse Width Modulation technique ensures high efficiency across load range
Applications
The LM27342SD is widely used in portable electronics, industrial control systems, and battery-powered devices requiring efficient DC-DC conversion. It suits point-of-load regulation in telecom equipment, embedded systems, and automotive sub-systems where a stable, adjustable voltage rail is needed from a 3V–20V supply.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 1V TO 18V |
| 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 | 12V |
| JESD-30 Code | S-PDSO-N10 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 4A |
| Output Voltage-Max | 18V |
| Output Voltage-Min | 1V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2300kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | TIN LEAD |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Package | Other |
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
Compatible alternatives and drop-in replacements for LM27342SD:
Switching Regulator, Current-mode, 2A, 2300kHz Switching Freq-Max, PDSO10
Frequently Asked Questions
What is the input voltage range of the LM27342SD?
The LM27342SD operates with an input voltage from 3V to 20V, with a nominal operating point of 12V, making it suitable for 5V USB rails, 12V adapters, and automotive power systems.
What output voltage range does the LM27342SD support?
The LM27342SD supports an adjustable output voltage range from 1V to 18V, allowing designers to set the regulated output precisely for a wide variety of load requirements in industrial and consumer applications.
What control method does the LM27342SD use and why does it matter?
The LM27342SD uses current-mode pulse width modulation (PWM) control, which provides inherent cycle-by-cycle current limiting, excellent transient response, and simplified loop compensation compared to voltage-mode controllers.
What package is the LM27342SD available in?
The LM27342SD is available in a 10-pin MSOP (S-PDSO-N10) surface-mount package, which offers a small PCB footprint suitable for space-constrained designs in portable and embedded systems.
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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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