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Texas Instruments LM8801XUE-1.82/NOPB
- Part No.:
- LM8801XUE-1.82/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 6-WFBGA, DSBGA
- Datasheet:
-
LM8801XUE-1.82/NOPB.pdf
- Description:
- IC REG BUCK 1.82V 600MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:750
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Product details
Overview
LM8801XUE-1.82/NOPB from Texas Instruments is a high-precision, 6 MHz synchronous step-down DC-DC converter delivering up to 600 mA output current with ±1.5% DC output voltage accuracy at 1.82 V, 27 µA quiescent current in PFM mode, and 90%+ efficiency across 2.3–5.5 V input range-designed for powering core logic in mobile phones and portable hard disk drives.
For engineers reviewing the LM8801XUE-1.82/NOPB datasheet, LM8801XUE-1.82/NOPB pinout, LM8801XUE-1.82/NOPB application, or LM8801XUE-1.82/NOPB equivalent, key selection criteria include its auto PFM/PWM mode switching behavior, 6-bump DSBGA package footprint, 1.82 V fixed-output configuration, and thermal shutdown protection at 150°C junction temperature.
Technical Context
The LM8801XUE-1.82/NOPB implements voltage-mode PWM control with input-voltage feed-forward for stable regulation under line and load transients. Its internal PFET (220 mΩ) and synchronous NFET (180 mΩ) enable high-efficiency operation down to light loads via automatic PFM entry below ~50 mA.
Operation is governed by three distinct states: forced PWM (MODE = HIGH), auto PFM/PWM (MODE = LOW), and shutdown (EN < 0.4 V). The device features soft-start, UVLO at 2.0 V, current limit at 1.1 A (typ.), and thermal shutdown at 150°C with hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.82 V - precisely regulated for low-voltage core rails in mobile SoCs and ASICs. |
| Max Output Current | 600 mA - supports full-load operation across entire 2.3–5.5 V input range without derating. |
| Switching Frequency | 6.0 MHz (typ.) - enables ultra-compact 0402 passive integration and minimizes EMI above sensitive IF bands. |
| Quiescent Current | 27 µA (typ.) in PFM mode - extends battery life during standby in portable devices. |
| Output Voltage Accuracy | ±1.5% over temperature - ensures reliable logic-level compliance for 1.8 V I/O and core domains. |
| Input Voltage Range | 2.3 V to 5.5 V - compatible with single Li-Ion, 3-cell NiMH, or regulated 3.3 V/5 V rails. |
| Thermal Shutdown | Triggers at TJ ≈ 150°C, resumes at 130°C - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
LM8801XUE-1.82/NOPB uses a 6-bump DSBGA package (1.065 mm × 1.265 mm, 0.6 mm height, 0.25 mm profile) optimized for space-constrained mobile PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1: MODE | Mode selection control | LOW enables auto PFM/PWM transition; HIGH forces continuous PWM - critical for noise-sensitive vs. efficiency-critical system modes. |
| A2: VIN | Main power input | Accepts 2.3–5.5 V; requires local 2.2 µF ceramic capacitor to suppress high-frequency switching noise. |
| B1: SW | Switching node | Connects internal PFET drain and NFET source; carries high di/dt current - must be routed short and wide to minimize EMI and voltage spikes. |
| B2: EN | Enable control | Logic HIGH (>1.2 V) enables operation; LOW (<0.4 V) disables with 0.08 µA shutdown current - used for system-level power sequencing. |
| C1: FB | Voltage feedback input | Monitors output via resistive divider (not required for fixed 1.82 V variants); connects directly to COUT for stability. |
| C2: GND | Power ground reference | Common return for all internal circuits; must be tied to low-impedance ground plane with multiple vias to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Auto PFM/PWM mode switching | Reduces quiescent current to 27 µA at light loads while maintaining fast transient response when load jumps to 600 mA. |
| Synchronous rectification | Eliminates external Schottky diode; internal NFET (180 mΩ) cuts conduction loss and improves efficiency by >5% at 1.82 V output. |
| Best-in-class load transient response | Stabilizes within 10 µs after 0→600 mA step - prevents brownout in processor cores during burst activity. |
| Total solution size < 7 mm² | Supports 0402 inductors and capacitors (e.g., 0.5 µH FDK, 4.7 µF TDK) - enables placement beneath display or camera modules. |
| Internal soft-start | Gradually ramps switch current limit at power-up - prevents inrush into large output capacitance and avoids input rail collapse. |
Applications
| Mobile Phone Core Power | Wireless LAN Baseband |
|---|---|
Use Scenario: Powers ARM Cortex-A series application processors and memory interfaces in slim smartphone designs. IC Role / Device Role / Timing Role: Primary 1.82 V core regulator supplying CPU/GPU clusters with dynamic voltage scaling support. Use Value: Delivers 600 mA at ±1.5% accuracy while maintaining >90% efficiency at 3.6 V input - enabling longer talk time and lower thermal dissipation. | Use Scenario: Supplies 1.82 V to WLAN baseband ICs (e.g., TI WL18xx) in handheld hotspots and tablets. IC Role / Device Role / Timing Role: High-frequency buck converter synchronized to RF subsystem clocks to avoid beat frequencies. Use Value: 6 MHz fixed switching frequency places noise spectrum outside 2.4 GHz and 5 GHz ISM bands - reducing RF desense risk. |
| Portable HDD Controller | PDA Application Processor |
Use Scenario: Provides clean 1.82 V rail to SATA or USB 3.0 bridge controllers in external SSD enclosures. IC Role / Device Role / Timing Role: Low-noise, high-PSSR regulator isolating storage interface from noisy USB host power. Use Value: Low output ripple (<10 mVpp) and fast load transient recovery prevent data corruption during burst read/write operations. | Use Scenario: Powers OMAP or i.MX application processors in legacy PDAs and industrial handheld terminals. IC Role / Device Role / Timing Role: Main system regulator supporting boot ROM, SDRAM, and LCD controller from single-cell Li-ion. Use Value: Wide 2.3–5.5 V input range accommodates battery discharge curve without requiring intermediate LDO - simplifying BOM and layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | Fixed 1.8 V output, 3–6 MHz DCM/PWM, 400 mA max, 12 µA IQ in DCM - lower current rating and tighter output tolerance (±1%). | Optimized for ultra-low-power microcontrollers; lacks PFM headroom boost for transient response. | Select when 400 mA suffices and lowest possible quiescent current dominates over transient performance. |
| TPS62260DRVR | Adjustable 0.6–5.5 V output, 2.25 MHz, 600 mA, 17 µA IQ in PFM - requires external feedback resistors and has lower switching frequency. | Better for multi-rail systems needing flexibility; less suitable for space-constrained 1.82 V-only designs. | Select when board space allows larger inductor and adjustable output is needed for future variants. |
Compared with TPS62231DRYR and TPS62260DRVR, the LM8801XUE-1.82/NOPB delivers superior load transient response at 1.82 V with no external feedback components, while maintaining the smallest total solution size and highest efficiency at 6 MHz - making it optimal for volume mobile applications where fixed 1.82 V is specified.
Availability
LM8801XUE-1.82/NOPB is available at Aetrix Electronics and suitable for mobile phone core power, wireless LAN baseband supply, and portable HDD controller applications requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production lots.
Supply support for LM8801XUE-1.82/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-efficiency DC-DC conversion for portable electronics.
The LM8801 product line was engineered specifically for ultra-thin mobile devices requiring compact, high-frequency, fixed-output buck converters with best-in-class light-load efficiency and transient response - targeting smartphones, MP3 players, and PDAs.
FAQ
What is the exact output voltage tolerance of the LM8801XUE-1.82/NOPB over temperature?
The LM8801XUE-1.82/NOPB guarantees ±1.5% DC output voltage precision over the full operating junction temperature range (−30°C to +125°C), as confirmed in the Electrical Characteristics table of the SNVS597H datasheet. This tolerance applies under closed-loop conditions with 2.3–5.5 V input and load currents from 0.1 mA to 600 mA, ensuring reliable 1.82 V rail integrity for logic interfaces across environmental extremes.
Does the LM8801XUE-1.82/NOPB require external feedback resistors?
No, the LM8801XUE-1.82/NOPB is a factory-trimmed fixed-output variant delivering exactly 1.82 V without external feedback resistors. The FB pin is internally connected to the 1.82 V reference; external resistor networks are unnecessary and not supported. This eliminates tuning errors and reduces BOM count versus adjustable alternatives like the LM8801TME-1.82/NOPB.
How does the MODE pin affect efficiency and noise in the LM8801XUE-1.82/NOPB?
When MODE = LOW, the LM8801XUE-1.82/NOPB operates in auto PFM/PWM mode - switching to PFM below ~50 mA to achieve 27 µA quiescent current and extend battery life, while transitioning seamlessly to 6 MHz PWM above that threshold for low-noise, high-efficiency operation. Forcing MODE = HIGH locks continuous PWM, eliminating PFM-related frequency variation but increasing light-load IQ to 570 µA.
What is the recommended inductor value and type for the LM8801XUE-1.82/NOPB?
Texas Instruments specifies a 0.5 µH shielded inductor (e.g., FDK MIPSZ2012D0R5 or Murata LQM21PNR54MG0D) with saturation current ≥1300 mA and DCR < 0.1 Ω. This value balances ripple current, transient response, and size - enabling the <7 mm² total solution referenced in the datasheet. Unshielded or non-ferrite inductors risk EMI coupling and thermal instability.
Can the LM8801XUE-1.82/NOPB operate from a 2.3 V input with full 600 mA output?
Yes, the LM8801XUE-1.82/NOPB sustains 600 mA output current across its full 2.3–5.5 V input range, as verified in the Operating Ratings and Typical Performance Characteristics (Figure 1–4). At 2.3 V input, efficiency drops to ~75% at 600 mA (vs. >90% at 3.6 V), but regulation remains stable with ±1.5% accuracy - critical for deep-discharge operation in single-cell Li-Ion systems.
LM8801XUE-1.82/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.82V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -30°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
LM8801XUE-1.82/NOPB FAQ
1.How can I place an order for LM8801XUE-1.82/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM8801XUE-1.82/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM8801XUE-1.82/NOPB reliable?
The price and inventory of LM8801XUE-1.82/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM8801XUE-1.82/NOPB is usually 5 days.
3.What payment methods are accepted for LM8801XUE-1.82/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM8801XUE-1.82/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM8801XUE-1.82/NOPB?
LM8801XUE-1.82/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM8801XUE-1.82/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM8801XUE-1.82/NOPB?
For technical support, including LM8801XUE-1.82/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM8801XUE-1.82/NOPB requirements.
6.How does Aetrix verify that LM8801XUE-1.82/NOPB is sourced from the original manufacturer or authorized distributors?
All LM8801XUE-1.82/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM8801XUE-1.82/NOPB meets industry standards.
7.What is the process for return or replacement of LM8801XUE-1.82/NOPB?
All LM8801XUE-1.82/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM8801XUE-1.82/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM8801XUE-1.82/NOPB part is unused and in its original packaging.
Return procedure for LM8801XUE-1.82/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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