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onsemi LV5071M-TLM-H
- Part No.:
- LV5071M-TLM-H
- Manufacturer:
- onsemi
- Package:
- 12-LSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
LV5071M-TLM-H.pdf
- Description:
- IC REG BUCK ADJ 1A 12MFPS
- Quantity:
- Payment:
- Shipping:
Inventory:4,840
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Product details
Overview
LV5071M-TLM-H from SANYO Semiconductor is a Bi-CMOS DC/DC converter IC featuring a synchronous rectifying PWM step-down regulator (0.8–3.3 V / 1 A) and an externally controlled GPO for output capacitor discharge. It integrates thermal shutdown, hiccup recovery, and operates across -20°C to +85°C ambient, suited for compact power rails in portable instrumentation.
For engineers reviewing the LV5071M-TLM-H datasheet, pinout, applications, or equivalent options, key selection criteria include its 2.2 MHz switching frequency, 0.5 V feedback reference, dual ground separation (PGND1/PGND2), and GPO discharge control timing behavior under GPI logic.
Technical Context
The LV5071M-TLM-H implements a fixed-frequency current-mode PWM controller with internal 0.5 V reference and soft-start circuitry. Its LX pin drives external high-side P-ch and low-side N-ch MOSFETs via integrated gate drivers with 0.15 Ω ON resistance each.
It supports output voltage setting via external resistor divider on FB, enables/disables regulation via ENDCO (active-high), and triggers GPO discharge via GPI (active-low). The BGR pin provides a stable 1.25 V reference for auxiliary circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage range | 0.8 V to 3.3 V - Set by external FB resistor divider; 0.5 V reference enables precise low-voltage regulation |
| Max output current | 1 A - Supported by integrated 0.15 Ω Pch/Nch LX drivers; requires external inductor (2.2 μH typical) |
| Switching frequency | 1.7–2.7 MHz (typ 2.2 MHz) - Enables use of small external LC components; reduces board area |
| FB reference voltage | 0.49–0.51 V - Tight tolerance ensures ±1.5% output accuracy over temperature and load |
| GPO discharge current | 7.5–37.5 mA - Actively discharges output capacitor when GPI = Low; supports safe power-down sequencing |
| Thermal protection | Built-in thermal shutdown - Latches off at junction temperature >150°C; recovers via hiccup mode |
| Supply voltage range | VIN/PVIN = 2.95–5.5 V - Input range varies with VOUT setting; supports single Li-ion or USB-powered systems |
Pinout & Package
LV5071M-TLM-H uses the MFP12S (225 mil) 12-pin surface-mount package: 5.0 mm × 4.4 mm × 1.7 mm height, with exposed thermal pad (PGND1/PGND2 connected internally).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 12 | PGND1 / PGND2 | Dedicated power grounds - Separated from signal GND to minimize noise coupling into feedback path |
| 2 | LX | PWM switching node - Drives external buck inductor; requires low-inductance layout to minimize EMI |
| 4 | PVIN | DC/DC power input - Supplies high-current path to LX drivers; must be decoupled near pin |
| 5 | FB | Voltage feedback input - Connects to resistor divider; high-impedance node sensitive to noise |
| 6 | GPO | Discharge output - Sinks up to 37.5 mA when GPI = Low; used for controlled VOUT ramp-down |
| 7 | BGR | 1.25 V reference output - Powers external bias circuits; requires 0.22 μF bypass capacitor |
| 8 | GND | Signal ground - Reference for ENDCO, GPI, FB, and internal logic; must tie to clean analog ground |
| 9 | GPI | GPO control input - Active-low; pulls GPO low to discharge output capacitor during shutdown |
| 10 | VIN | Logic supply - Powers internal control circuitry; independent of PVIN; accepts 2.95–5.5 V |
| 11 | ENDCO | Enable control - Active-high; sets DC/DC ON/OFF state; compatible with microcontroller GPIO |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous buck topology | Integrated Pch/Nch drivers reduce conduction loss vs. diode-based solutions; improves efficiency at 1 A load |
| Independent power/ground domains | Separate PVIN, VIN, PGND1, PGND2, and GND pins enable optimal noise isolation between power and signal paths |
| Programmable output voltage | 0.8–3.3 V via FB resistor divider - Supports core voltages for MCUs, FPGAs, and sensors without external DAC |
| Capacitor discharge control | GPO + GPI combination provides deterministic, fast output discharge - critical for safety-critical or multi-rail sequencing |
| Hiccup-mode recovery | Auto-restarts after thermal or overcurrent fault - avoids latch-up while preventing sustained overstress conditions |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Battery-powered glucose meters requiring regulated 1.8 V rail with controlled shutdown to prevent residual voltage on sensor interface. IC Role / Device Role / Timing Role: Primary DC/DC regulator and active discharge controller; manages power sequencing during sleep/wake transitions. Use Value: GPO discharge ensures <100 μs VOUT decay below 0.1 V when GPI asserts, eliminating false sensor readings during power-down. | Use Scenario: DIN-rail mounted I/O module with isolated 3.3 V logic supply derived from 24 V bus, needing robust overtemperature response. IC Role / Device Role / Timing Role: Step-down regulator with thermal shutdown and hiccup recovery; maintains uptime in enclosed enclosures. Use Value: Thermal shutdown at >150°C junction temperature prevents damage during sustained 85°C ambient operation with full load. |
| Automotive Body Control Units | Test & Measurement Handhelds |
Use Scenario: Low-power BCM sub-module supplying 2.5 V to CAN transceiver and microcontroller, operating across automotive temperature range. IC Role / Device Role / Timing Role: Compact, high-efficiency buck converter with wide input range (2.95–5.5 V) matching LiFePO₄ battery profile. Use Value: 82% efficiency at 1.8 V/0.5 A and 90% at 3.3 V/0.5 A minimizes thermal rise in sealed housing. | Use Scenario: Portable oscilloscope front-end requiring ultra-stable 1.2 V analog supply with minimal ripple and fast transient response. IC Role / Device Role / Timing Role: Precision low-noise regulator with 0.5 V FB reference and 2.2 MHz switching to ease filtering. Use Value: Load regulation of 15–45 mV over 1 mA–1 A ensures consistent ADC reference stability during dynamic sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TPS62231DRYR | Fixed 1.8 V output; no GPO discharge function; 3 MHz switching; smaller 6-pin WSON package | Lacks active capacitor discharge - unsuitable where rapid VOUT ramp-down is required | Select when footprint and fixed output simplify design; avoid if GPI/GPO sequencing is needed |
| Rohm BD9A100MUV-E2 | Adjustable 0.6–3.6 V output; includes power-good flag; 2.2 MHz; same 12-pin HTSOP-J package | Includes PG pin but no dedicated GPO discharge driver; higher quiescent current (25 μA vs. 0.5 μA standby) | Prefer for designs needing power-good monitoring; verify GPO functionality not required before substitution |
Compared with LV5071M-TLM-H, the TPS62231DRYR saves board space but removes discharge control, while the BD9A100MUV-E2 adds PG signaling at the cost of higher standby current and no GPO sink capability - both require revalidation of shutdown sequencing.
Availability
LV5071M-TLM-H is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and automotive body control units requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for LV5071M-TLM-H 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
SANYO Semiconductor (now part of ON Semiconductor) specialized in high-efficiency analog and power ICs for consumer, industrial, and automotive applications before its 2011 acquisition.
The LV5071M-TLM-H belongs to SANYO's Bi-CMOS DC/DC converter family designed for space-constrained, thermally demanding applications requiring integrated discharge control and precision low-voltage regulation.
FAQ
What is the recommended inductor value for LV5071M-TLM-H in a 3.3 V output design?
The LV5071M-TLM-H datasheet specifies a 2.2 μH inductor for typical operation. For 3.3 V output at 1 A, a shielded 2.2 μH inductor rated ≥1.5 A saturation current and ≤0.1 Ω DCR is recommended to maintain efficiency above 90% and ensure stable current-mode control. Layout must minimize loop area between LX, PGND1, and PVIN.
Does LV5071M-TLM-H support adjustable soft-start time?
No, LV5071M-TLM-H features fixed internal soft-start duration (~1.5 ms), as confirmed by startup waveform data in the datasheet. There is no external capacitor or resistor option to adjust ramp rate. This fixed timing ensures predictable inrush current limiting without additional components.
Can LV5071M-TLM-H operate with VIN and PVIN supplied from separate sources?
Yes - VIN (logic supply) and PVIN (power switch supply) are electrically isolated domains. VIN may be derived from a low-noise LDO (2.95–5.5 V), while PVIN connects directly to the main battery or rail (same voltage range). This separation reduces noise coupling from power switching into control circuitry.
What is the maximum allowable GPO output voltage when sinking current?
The LV5071M-TLM-H GPO pin has a maximum output voltage of 1.0 V (typical) when sinking 5 mA, per the VOL specification. At 37.5 mA max sink current, voltage rises to ≤1.0 V only if external pull-up is absent; GPO is designed as an open-drain-like sink, not a push-pull driver.
Is LV5071M-TLM-H compliant with RoHS and REACH regulations?
Yes - LV5071M-TLM-H was manufactured under SANYO's RoHS-compliant process prior to the ON Semiconductor acquisition. The MFP12S package carries lead-free (Pb-free) finish and meets JEDEC J-STD-020 moisture sensitivity level 3, with full REACH SVHC declaration available upon request from Aetrix Electronics.
LV5071M-TLM-H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 12-LSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.95V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 3.3V
- Current - Output:
- 1A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-MFPS
LV5071M-TLM-H FAQ
1.How can I place an order for LV5071M-TLM-H through Aetrix?
Please submit a Request for Quotation (RFQ) for LV5071M-TLM-H 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 LV5071M-TLM-H reliable?
The price and inventory of LV5071M-TLM-H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LV5071M-TLM-H is usually 5 days.
3.What payment methods are accepted for LV5071M-TLM-H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LV5071M-TLM-H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LV5071M-TLM-H?
LV5071M-TLM-H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LV5071M-TLM-H 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 LV5071M-TLM-H?
For technical support, including LV5071M-TLM-H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LV5071M-TLM-H requirements.
6.How does Aetrix verify that LV5071M-TLM-H is sourced from the original manufacturer or authorized distributors?
All LV5071M-TLM-H 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 LV5071M-TLM-H meets industry standards.
7.What is the process for return or replacement of LV5071M-TLM-H?
All LV5071M-TLM-H units undergo pre-shipment inspection (PSI). If there is an issue with LV5071M-TLM-H, 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 LV5071M-TLM-H part is unused and in its original packaging.
Return procedure for LV5071M-TLM-H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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