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STMicroelectronics LDL112PV10R
- Part No.:
- LDL112PV10R
- Manufacturer:
- STMicroelectronics
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
LDL112PV10R.pdf
- Description:
- IC REG LINEAR 1V 1.2A 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,042
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Product details
Overview
LDL112PV10R from STMicroelectronics is a 1.0 V fixed-output, 1.2 A low-dropout linear regulator with 300 mV typical dropout at 1 A, ±2.0% output voltage accuracy at 25 °C, reverse current protection, and logic-controlled shutdown. It operates from 1.6 V to 5.5 V input and supports ceramic output capacitors as low as 1 µF - ideal for USB-powered devices and battery-powered point-of-load regulation in portable consumer electronics.
For engineers reviewing the LDL112PV10R datasheet, LDL112PV10R pinout, LDL112PV10R application, or LDL112PV10R equivalent, key selection considerations include its guaranteed 1.2 A output under thermal limits, sub-1 µA shutdown current, -40 °C to 125 °C operating junction temperature range, and compatibility with DFN6 (3x3) and DFN6 (2x2) packages for space-constrained designs.
Technical Context
The LDL112PV10R uses a PMOS pass transistor architecture enabling ultra-low dropout and inherent reverse current blocking without external components. Its internal bandgap reference (800 mV) and error amplifier regulate output via feedback to maintain tight DC accuracy across load and temperature.
Thermal shutdown triggers at 165 °C with 20 °C hysteresis, and current limiting activates at ~1.4–2 A. The enable pin (EN) provides active-high logic control, and the exposed pad must be connected to GND for thermal performance and EMI reduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.0 V ±2.0% at 25 °C - ensures stable core supply for low-voltage microcontrollers and sensors. |
| Max output current | 1.2 A guaranteed - supports high-current peripherals like USB PHYs or display drivers without derating. |
| Dropout voltage | 300 mV typ. at 1 A - enables operation from single-cell Li-ion (3.0–4.2 V) down to ~1.3 V input while maintaining regulation. |
| Quiescent current | 35 µA typ. at no load - extends battery life in always-on monitoring circuits. |
| Shutdown current | ≤1 µA max. - critical for energy harvesting and long-term storage modes. |
| Input voltage range | 1.6 V to 5.5 V - compatible with wide-input sources including USB, coin cells, and multi-cell batteries. |
| Output capacitor | 1 µF ceramic minimum - reduces BOM count and PCB area vs. electrolytic/tantalum alternatives. |
| Operating temperature | -40 °C to 125 °C junction - qualified for automotive cabin and industrial edge-node environments. |
Pinout & Package
LDL112PV10R is available in DFN6 (3x3) mm and DFN6 (2x2) mm packages - both feature an exposed thermal pad requiring GND connection. Pin assignments are identical across variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | LDO input supply | Accepts 1.6–5.5 V; requires local 1 µF ceramic decoupling close to pin. |
| GND | Power and signal reference | Common return path; exposed pad must be soldered to PCB GND plane for thermal/EMI performance. |
| EN | Enable logic input | Active-high: >1.4 V = ON, <0.35 V = shutdown; must not float - tie to VIN or controller GPIO. |
| VOUT | Regulated output | Delivers fixed 1.0 V ±2.0%; supports 1–10 µF ceramic output capacitance per stability curve. |
| NC | No connect | Not internally bonded - leave unconnected; no routing or stitching required. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse current protection | Blocks backflow from VOUT to VIN during shutdown or overvoltage events - eliminates need for external blocking diode. |
| Output discharge function (optional) | Available on select versions - rapidly discharges VOUT when disabled, preventing residual voltage hold-up in safety-critical systems. |
| Thermal & current limiting | Self-protects against short-circuit (1.4–2 A limit) and overheating (165 °C shutdown with 20 °C hysteresis) - enables robust field operation without external supervision. |
| Low-noise regulation | 135 µVRMS output noise (10 Hz–100 kHz) - suitable for noise-sensitive analog rails and RF subsystems. |
| Wide input compatibility | Stable with 1.6 V min. input - supports direct regulation from single alkaline or NiMH cells without pre-boost. |
Applications
| USB-C Power Delivery Sink | Wearable Sensor Hub |
|---|---|
|
Use Scenario: Regulating 5 V USB-C PD input to 1.0 V for ultra-low-power MCU core supply in fitness trackers. IC Role / Device Role / Timing Role: Primary point-of-load LDO delivering clean, stable 1.0 V at up to 1.2 A peak during sensor burst sampling. Use Value: Reverse current protection prevents backfeed into USB port during battery backup mode; 35 µA quiescent current extends runtime between charges. |
Use Scenario: Powering MEMS accelerometers and BLE SoCs in compact earbud designs where board space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Fixed-output LDO supplying 1.0 V rail with <300 mV dropout to maximize usable battery voltage range from 1.8–3.6 V LiPo. Use Value: DFN6 (2x2) package enables <4 mm² footprint; 1 µF ceramic output cap reduces component height and improves reliability vs. tantalum. |
| Industrial IoT Edge Node | Smart Home Battery Gateway |
|
Use Scenario: Providing 1.0 V bias to precision ADCs and isolated CAN transceivers in battery-backed gateways deployed in uncontrolled ambient conditions. IC Role / Device Role / Timing Role: High-accuracy, thermally robust LDO maintaining ±2.0% output tolerance from -40 °C to 125 °C junction temperature. Use Value: RthJA = 65 °C/W (DFN6 2x2) allows full 1.2 A load at 70 °C ambient without heatsink - simplifies enclosure design. |
Use Scenario: Supplying 1.0 V to Zigbee or Matter-compliant SoCs in AA/AAA-powered smart locks and thermostats requiring multi-year shelf life. IC Role / Device Role / Timing Role: Low-quiescent LDO enabling <1 µA system sleep current via EN-controlled shutdown. Use Value: Sub-1 µA off-mode current prevents battery drain during 5+ year storage; reverse current protection avoids leakage through backup power paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B102MR-G | 1.0 V fixed, 1 A max, 250 mV dropout @ 100 mA, no reverse current protection, 1 µA IQ in shutdown | Limited to lower current loads; lacks reverse blocking - requires external diode in bidirectional power systems | Select if cost sensitivity outweighs 1.2 A capability and reverse protection; verify thermal margin at >800 mA. |
| ROHM BD3572FP-E2 | 1.0 V fixed, 1.5 A max, 400 mV dropout @ 1 A, includes soft-start, no reverse current protection, 50 µA IQ | Higher current rating but higher dropout and quiescent current; no integrated reverse blocking | Prefer for higher-current applications where soft-start is needed, but add external MOSFET if reverse current must be blocked. |
Compared with XC6210B102MR-G and BD3572FP-E2, LDL112PV10R uniquely combines 1.2 A delivery, sub-300 mV dropout, reverse current blocking, and <1 µA shutdown - making it optimal for space- and energy-constrained battery systems where fault resilience and efficiency are co-prioritized.
Availability
LDL112PV10R is available at Aetrix Electronics and suitable for USB-powered devices, wearable sensor hubs, and industrial IoT edge nodes requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LDL112PV10R 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
STMicroelectronics is a global semiconductor leader specializing in power management, microcontrollers, and analog ICs for industrial, automotive, and consumer markets.
The LDL112 series is part of ST's high-efficiency LDO portfolio designed specifically for ultra-low-power, battery-critical applications demanding reverse current protection, wide input range, and robust thermal behavior in miniature packages.
FAQ
What is the minimum input voltage required for LDL112PV10R to regulate 1.0 V output?
The minimum input voltage is 1.6 V per datasheet specifications. At 1.0 V output, the device maintains regulation down to VIN = VOUT + VDROP ≈ 1.3 V in practice, but 1.6 V is the guaranteed operational lower limit across temperature and load. Below 1.6 V, the internal reference and bias circuitry may not function reliably.
Can LDL112PV10R be used with a 10 µF ceramic output capacitor?
Yes - the datasheet specifies COUT = 1–10 µF ceramic is supported, and Figure 25 (stability plan) confirms stable operation across this range when ESR is ≤3 Ω. A 10 µF X7R 0603 ceramic capacitor meets both requirements and improves transient response without compromising phase margin.
Does LDL112PV10R require an external resistor divider for 1.0 V output?
No - LDL112PV10R is the fixed 1.0 V version; the ADJ pin is not present. Only the adjustable versions (e.g., LDL112PVR) use an external resistor divider. This part integrates internal feedback for precise 1.0 V regulation without external components.
How does reverse current protection behave when VOUT exceeds VIN?
Reverse current protection actively blocks conduction from VOUT to VIN whenever VOUT > VIN + 100 mV - whether EN is high or low. In shutdown (EN = GND), the PMOS pass transistor is fully off and bulk/gate are tied to VOUT, eliminating all conduction paths. This prevents battery drain or damage in multi-rail systems with shared outputs.
LDL112PV10R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 6-VDFN Exposed Pad
- 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):
- 1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 1.2A
- Current - Output:
- 1.2A
- Current - Quiescent (Iq):
- 70 µA
- Current - Supply (Max):
- 400 µA
- PSRR:
- 57dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Current
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (3x3)
LDL112PV10R FAQ
1.How can I place an order for LDL112PV10R through Aetrix?
Please submit a Request for Quotation (RFQ) for LDL112PV10R 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 LDL112PV10R reliable?
The price and inventory of LDL112PV10R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LDL112PV10R is usually 5 days.
3.What payment methods are accepted for LDL112PV10R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LDL112PV10R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LDL112PV10R?
LDL112PV10R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LDL112PV10R 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 LDL112PV10R?
For technical support, including LDL112PV10R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LDL112PV10R requirements.
6.How does Aetrix verify that LDL112PV10R is sourced from the original manufacturer or authorized distributors?
All LDL112PV10R 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 LDL112PV10R meets industry standards.
7.What is the process for return or replacement of LDL112PV10R?
All LDL112PV10R units undergo pre-shipment inspection (PSI). If there is an issue with LDL112PV10R, 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 LDL112PV10R part is unused and in its original packaging.
Return procedure for LDL112PV10R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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