LM2833ZMY Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM2833ZMY is a current-mode PWM step-down DC-DC switching regulator from Texas Instruments accepting 3 V to 5.5 V input and adjustable output from 0.6 V to 4.5 V. Delivers high-efficiency power conversion with compact footprint in a 10-pin MSOP package suitable for portable and space-constrained electronics. Available in tape-and-reel packaging for automated assembly in high-volume consumer and industrial applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- OBSOLETE
- Datasheet
- LM2833ZMY 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
What are the key features of LM2833ZMY?
- Current-mode PWM control with adjustable output from 0.6 V to 4.5 V enables precise voltage regulation across a wide load range
- 3 V to 5.5 V input range covers USB, Li-Ion, and regulated 5 V rail sources in a single design
- 10-pin MSOP package with integrated power switch minimizes external component count and PCB area for space-constrained layouts
What is LM2833ZMY used for?
The LM2833ZMY is used in portable consumer electronics, USB-powered devices, and IoT sensor nodes requiring efficient step-down regulation from 5 V USB or single-cell Li-Ion inputs to core voltages between 0.6 V and 3.3 V. Its current-mode control loop provides fast transient response suitable for microcontroller and FPGA core supplies where load steps of 100 mA to 500 mA must be settled within a few microseconds.
What are the specifications of LM2833ZMY?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6V TO 4.5V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 4.4A |
| Output Voltage-Max | 4.5V |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 3.75kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | TIN |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM2833ZMY datasheet?
LM2833ZMY Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM2833ZMY?
Compatible alternatives and drop-in replacements for LM2833ZMY:
Switching Regulator, Current-mode, 3A, 3000kHz Switching Freq-Max, BICMOS, PDSO10
Frequently Asked Questions
How does the adjustable output range of LM2833ZMY from 0.6 V to 4.5 V benefit multi-rail power designs?
The 0.6 V to 4.5 V adjustable output allows a single LM2833ZMY to generate multiple voltage rails — such as 1.0 V for an FPGA core, 1.8 V for DDR memory, or 3.3 V for peripheral I/O — simply by changing two external resistors. This flexibility reduces the number of distinct regulator part numbers in a design, lowering procurement and qualification costs for multi-rail boards powered from a 5 V USB or regulated bus.
What switching frequency does LM2833ZMY use, and how does that influence inductor and capacitor selection?
LM2833ZMY operates at a fixed switching frequency of 3 MHz, which allows use of small-value inductors in the 1 µH to 4.7 µH range and output capacitors below 22 µF. Higher switching frequency shrinks the passive filter components needed for a given output ripple, enabling fully integrated power supplies in the few-millimeter board area typical of portable sensor and wireless module designs.
What is the input voltage range of LM2833ZMY, and is it compatible with direct USB 5 V power rails?
LM2833ZMY accepts input voltages from 3 V to 5.5 V, which directly spans the USB 5 V nominal rail including the ±5% tolerance band of 4.75 V to 5.25 V defined by the USB 2.0 specification. No intermediate pre-regulation is needed, and the device also operates from a fully charged 3.7 V Li-Ion cell at 4.2 V down to 3.0 V near end-of-discharge, covering the full single-cell battery discharge curve.
How does current-mode control in LM2833ZMY improve load transient response compared to voltage-mode regulators?
Current-mode control in LM2833ZMY senses the inductor current every switching cycle and uses it to modulate the duty cycle directly, giving the control loop a one-cycle response to load transients. This inherent inner current loop makes the duty-cycle-to-output transfer function first-order, simplifying compensation and allowing output voltage to recover from a 500 mA load step within approximately 5 µs with a 10 µF output capacitor.
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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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