LM3152MH-3.3/NOPB"> Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments LM3152MH-3.3/NOPB is a synchronous step-down DC-DC buck regulator with fixed 3.3 V output, up to 1.5 A output current, and wide input range in a 14-pin HTSSOP package. Designed for efficient point-of-load power conversion.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- LM3152MH-3.3/NOPB"> Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3 V output synchronous buck regulator delivering up to 1.5 A with high conversion efficiency above 90%
- Wide input voltage range supporting conversion from 5 V, 12 V, or unregulated adapter rails down to a stable 3.3 V output
- 14-pin HTSSOP thermal package with exposed pad for improved heat dissipation in compact, high-current PCB designs
Applications
LM3152MH-3.3/NOPB is suited for point-of-load 3.3 V power rails in embedded processors, FPGAs, and communication interface boards where efficiency and compact size are priorities. Its synchronous rectification topology reduces external diode losses and lowers heat generation, enabling reliable continuous operation at 1.5 A without bulky heatsinks. The HTSSOP package with exposed thermal pad facilitates heat transfer directly through the PCB, making it practical for thermally constrained designs such as industrial gateways and network switches.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM3152MH-3.3/NOPB">:
Switching Controller, Voltage-mode, 12A, 500kHz Switching Freq-Max, PDSO14
Frequently Asked Questions
What continuous output current can LM3152MH-3.3/NOPB supply, and is 1.5 A enough for a mid-range FPGA core rail?
LM3152MH-3.3/NOPB provides up to 1.5 A continuous output current at 3.3 V, which covers the I/O power budget of many mid-range FPGAs such as Xilinx Artix-7 series. For larger FPGAs consuming more than 1.5 A at 3.3 V, multiple phases or a higher-current regulator would be required instead.
How does the synchronous buck topology of LM3152MH-3.3/NOPB improve efficiency compared to a non-synchronous converter at light load?
The synchronous rectifier replaces the external Schottky diode with an internal low-resistance NMOS switch, reducing rectifier forward-drop losses from approximately 0.4 V to under 0.05 V at 1 A. This raises conversion efficiency by 5% to 10% across the 100 mA to 1.5 A load range, reducing both heat dissipation and battery drain in portable equipment.
For a design converting a 12 V adapter rail to 3.3 V, what inductor and output capacitor values are typically recommended for LM3152MH-3.3/NOPB?
At 12 V input switching typically between 300 kHz and 600 kHz, a 4.7 µH to 10 µH inductor paired with a 22 µF to 47 µF low-ESR ceramic output capacitor is recommended for LM3152MH-3.3/NOPB. This combination keeps output voltage ripple below 30 mV peak-to-peak while maintaining stable transient response under 1.5 A step loads.
Related Guides
EEEFK1E470P Selection Guide for 47 uF SMD Aluminum Electrolytic Capacitors
Selection guidance for EEEFK1E470P and nearby Panasonic FK or FT SMD aluminum electrolytic capacitors for power-rail bulk decoupling.
Jul 7, 2026
EEEFT1V101AP Design Guide for SMD Aluminum Electrolytic Bulk Decoupling
Design guidance for using EEEFT1V101AP as an SMD aluminum electrolytic bulk capacitor in power-rail decoupling and hold-up networks.
Jul 7, 2026
How to Choose a 3528 SMD Indicator LED for Blue Status Lighting: Selection Guide
A practical 3528 SMD indicator LED selection guide using 150141BS73100 and related Wurth 150141 variants for blue status lighting.
Jul 5, 2026
BAS70KFILM Design Guide for Low-Leakage Signal Clamping and RF Detector Inputs
Practical BAS70KFILM design guidance for signal clamps, RF detector inputs, leakage control, capacitance, layout, and sourcing alternatives.
Jul 5, 2026
Why Buy from FindMyChip
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”