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Texas Instruments LP5990TMX-1.2/NOPB
- Part No.:
- LP5990TMX-1.2/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- 4-WFBGA, DSBGA
- Datasheet:
-
LP5990TMX-1.2/NOPB.pdf
- Description:
- IC REG LINEAR 1.2V 200MA 4DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,993
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Product details
Overview
LP5990TMX-1.2/NOPB from Texas Instruments is a micropower 200mA CMOS low-dropout voltage regulator delivering a fixed 1.2V output with ±1% accuracy over −40°C to +125°C, 160mV dropout at 200mA, 30μA quiescent current (enabled), and 60μVRMS output noise - designed for space-constrained portable battery-powered systems such as cellular handsets and handheld information appliances.
For engineers reviewing the LP5990TMX-1.2/NOPB datasheet, LP5990TMX-1.2/NOPB pinout, LP5990TMX-1.2/NOPB application, or LP5990TMX-1.2/NOPB equivalent, key selection considerations include its DSBGA-4 package compatibility with 0402 1.0µF ceramic capacitors, logic-controlled enable functionality, thermal-overload protection, and stable no-load operation.
Technical Context
The LP5990TMX-1.2/NOPB employs a CMOS pass transistor architecture enabling ultra-low quiescent current (30μA active, 10nA shutdown) and fast transient response (60μs startup, 500μs shutdown). Its internal reference and error amplifier maintain tight regulation across input voltage (2.2V–5.5V), load (0–200mA), and temperature (−40°C to +125°C).
Designed for minimal PCB footprint, it achieves stability with 1.0µF ceramic capacitors on both input and output, supported by a 5–500mΩ ESR range and optimized compensation for 0402 case size. The enable pin features a 3MΩ internal pull-down resistor and defined VIH/VIL thresholds (≥1.0V / ≤0.35V) for reliable logic-level control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±1% over −40°C to +125°C junction temperature - ensures precise core/sensor rail regulation without external feedback. |
| Max Output Current | 200mA continuous - sufficient for low-power microcontrollers, RF transceivers, and sensor interfaces in portable devices. |
| Dropout Voltage | 160mV at 200mA load - enables operation from 1.36V input, critical for single-cell Li-ion or Li-poly battery systems. |
| Quiescent Current | 30μA (enabled), 10nA (disabled) - extends battery life in always-on or duty-cycled applications like wearables and IoT endpoints. |
| Noise Performance | 60μVRMS (10Hz–100kHz, VOUT=1.8V) - supports noise-sensitive analog circuits including ADCs, audio codecs, and precision sensors. |
| PSRR | 55dB at 10kHz - suppresses switching noise from adjacent DC/DC converters in mixed-signal power domains. |
| Capacitor Support | Stable with 0402 1.0µF X7R/X5R ceramic capacitors (ESR 5–500mΩ) - reduces total solution area to <2.5mm² and eliminates need for larger 0603 or tantalum parts. |
Pinout & Package
LP5990TMX-1.2/NOPB uses a 4-bump DSBGA package (YFQ0004CEA), 0.4mm pitch, 866µm × 917µm body, lead-free SNAGCU ball finish, MSL Level-1, and marked "LP5990TMX-1.2/NOPB.A".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A2 | VEN | Logic-controlled enable input; ≥1.0V enables regulator, ≤0.35V disables output and reduces IQ to 10nA. |
| A1 | GND | Common ground reference for all internal circuitry and external capacitor return paths. |
| B1 | VOUT | Regulated 1.2V output; requires 1.0µF ceramic capacitor (0402) placed within 1cm for stability and low-noise performance. |
| B2 | VIN | Input supply (2.2V–5.5V); requires 1.0µF ceramic capacitor (0402) placed within 1cm to minimize input inductance and ensure transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 30μA IQ (enabled) and 10nA IQ (shutdown) - enables multi-year battery life in energy-harvesting and coin-cell-powered devices. |
| Ultra-Small Solution Size | <2.5mm² total footprint using 0402 1.0µF input/output capacitors - ideal for ultra-thin smartphones, TWS earbuds, and medical patches. |
| Fast Transient Response | 60μs startup time and 500μs shutdown time - meets dynamic power sequencing requirements in ARM Cortex-M and RISC-V SoC subsystems. |
| Robust Protection | Integrated thermal overload and short-circuit current limiting (600mA typical) - prevents damage during fault conditions without external components. |
| No-Load Stability | Maintains regulation with zero output load - simplifies design for standby modes and intermittent sensing applications. |
Applications
| Cellular Handsets | Wearable Fitness Trackers |
|---|---|
|
Use Scenario: Powering baseband processor I/O rails and RF front-end bias in compact LTE/5G handsets with tight thermal and area constraints. IC Role / Device Role / Timing Role: Primary LDO providing clean, low-noise 1.2V supply to digital core logic and high-speed SerDes interfaces. Use Value: 60μVRMS noise and 55dB PSRR prevent bit errors in high-data-rate cellular modems; 160mV dropout extends usable battery voltage range. |
Use Scenario: Supplying ultra-low-power MCU, optical heart-rate sensor, and BLE radio in wrist-worn form factors. IC Role / Device Role / Timing Role: System-level power management IC delivering regulated 1.2V to mixed-signal sensor hub and wireless transceiver. Use Value: 10nA shutdown current minimizes leakage during sleep cycles; 0402 capacitor compatibility enables sub-10mm² PCB area allocation. |
| Handheld Medical Devices | Industrial Sensor Nodes |
|
Use Scenario: Powering clinical-grade analog front-ends (AFE) and low-power microcontrollers in portable ECG or pulse oximeters. IC Role / Device Role / Timing Role: Precision voltage regulator ensuring stable 1.2V reference for 16-bit ADCs and instrumentation amplifiers. Use Value: ±1% output accuracy over −40°C to +125°C maintains measurement integrity across environmental operating ranges. |
Use Scenario: Providing regulated 1.2V supply to MEMS accelerometers, temperature sensors, and LoRaWAN transceivers in battery-operated field nodes. IC Role / Device Role / Timing Role: Energy-efficient power source supporting long-duration data logging and periodic wireless transmission. Use Value: 30μA quiescent current enables >5-year battery life on a single CR2032 cell; DSBGA package withstands vibration and thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, micropower LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL720F12PDBVR | 1.2V fixed, 200mA, 25μA IQ, 120mV dropout, SOT-23-5 package - lacks enable pin and requires minimum 2.2µF output capacitance. | Not suitable for 0402-capacitor designs or logic-controlled shutdown; better for cost-sensitive, non-shutdown applications. | Select only if board layout permits SOT-23-5 and system does not require enable control or ultra-small footprint. |
| MCP1700T-1202E/TT | 1.2V fixed, 250mA, 1.6μA IQ (quiescent), 600mV dropout, SOT-23-3 - ultra-low IQ but higher dropout limits use with single-cell batteries. | Superior for multi-year battery life in always-on sensors; unsuitable for Li-ion systems requiring <1.8V input operation. | Prefer when lowest possible IQ dominates design priority and input voltage remains ≥2.7V; avoid for 1.36V–2.2V input scenarios. |
Compared with TPL720F12PDBVR and MCP1700T-1202E/TT, LP5990TMX-1.2/NOPB uniquely balances ultra-low noise (60μVRMS), logic-enable capability, 0402 capacitor support, and 160mV dropout - making it optimal for space- and noise-constrained portable electronics where input voltage may dip near 1.36V.
Availability
LP5990TMX-1.2/NOPB is available at Aetrix Electronics and suitable for cellular handsets, wearable fitness trackers, handheld medical devices, and industrial sensor nodes requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.
Supply support for LP5990TMX-1.2/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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, personal electronics, and communications markets.
The LP5990 series belongs to TI's precision low-noise LDO portfolio, engineered specifically for battery-powered portable systems demanding micropower operation, minimal PCB area, and high accuracy under wide thermal and load variation.
FAQ
What is the maximum input voltage rating for LP5990TMX-1.2/NOPB?
The absolute maximum input voltage (VIN) for LP5990TMX-1.2/NOPB is 6.0V. However, the recommended operating range is 2.2V to 5.5V per the datasheet. Exceeding 6.0V risks permanent damage to the internal CMOS pass device and bandgap reference circuitry. Always observe this limit in both steady-state and transient conditions, especially when used with boost converters or hot-swap circuits.
Does LP5990TMX-1.2/NOPB require external resistors for output voltage setting?
No, LP5990TMX-1.2/NOPB is a fixed-output regulator with an internally trimmed 1.2V reference. It does not use external feedback resistors. The output voltage is factory-set and guaranteed within ±1% over −40°C to +125°C junction temperature, eliminating resistor tolerance errors and layout sensitivity associated with adjustable LDOs.
Can LP5990TMX-1.2/NOPB operate without any load connected to VOUT?
Yes, LP5990TMX-1.2/NOPB remains stable and in regulation with zero load current. This no-load stability is confirmed in the datasheet's "NO-LOAD STABILITY" section and verified across the full temperature range. It enables use in systems with deep-sleep modes where downstream circuitry is fully powered down.
What is the thermal shutdown threshold of LP5990TMX-1.2/NOPB?
The thermal shutdown activation temperature for LP5990TMX-1.2/NOPB is 160°C, with 20°C hysteresis. When junction temperature exceeds 160°C, the regulator shuts down to protect itself; it automatically resumes operation once the die cools below 140°C. This behavior is fully integrated and requires no external components.
Is LP5990TMX-1.2/NOPB compatible with 0402-size ceramic capacitors?
Yes, LP5990TMX-1.2/NOPB is explicitly designed and characterized for stability with 0402-case-size 1.0µF X7R or X5R ceramic capacitors on both input and output. The datasheet confirms this in the "Stable with 0402 1.0µF Ceramic Capacitors" feature and specifies ESR range (5–500mΩ) and DC bias derating guidance to ensure minimum 0.3µF effective capacitance under operating conditions.
LP5990TMX-1.2/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-WFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 75 µA
- Current - Supply (Max):
- -
- PSRR:
- 55dB (10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-DSBGA
LP5990TMX-1.2/NOPB FAQ
1.How can I place an order for LP5990TMX-1.2/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP5990TMX-1.2/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 LP5990TMX-1.2/NOPB reliable?
The price and inventory of LP5990TMX-1.2/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP5990TMX-1.2/NOPB is usually 5 days.
3.What payment methods are accepted for LP5990TMX-1.2/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP5990TMX-1.2/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP5990TMX-1.2/NOPB?
LP5990TMX-1.2/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP5990TMX-1.2/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 LP5990TMX-1.2/NOPB?
For technical support, including LP5990TMX-1.2/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP5990TMX-1.2/NOPB requirements.
6.How does Aetrix verify that LP5990TMX-1.2/NOPB is sourced from the original manufacturer or authorized distributors?
All LP5990TMX-1.2/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 LP5990TMX-1.2/NOPB meets industry standards.
7.What is the process for return or replacement of LP5990TMX-1.2/NOPB?
All LP5990TMX-1.2/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP5990TMX-1.2/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 LP5990TMX-1.2/NOPB part is unused and in its original packaging.
Return procedure for LP5990TMX-1.2/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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