My Inquiry
My Account
Texas Instruments LMR16010PDDA
- Part No.:
- LMR16010PDDA
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMR16010PDDA.pdf
- Description:
- IC REG BUCK ADJ 1A 8SOPWR
- Quantity:
- Payment:
- Shipping:
Inventory:222
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMR16010PDDA from Texas Instruments is a 60 V, 1 A synchronous step-down DC-DC converter with integrated high-side MOSFET, 40 µA quiescent current in Sleep-mode, adjustable 200 kHz–2.5 MHz switching frequency, and precision 0.75 V feedback reference-designed for automotive battery regulation and industrial power conditioning from unregulated sources.
For engineers reviewing the LMR16010PDDA datasheet, LMR16010PDDA pinout, LMR16010PDDA application, or LMR16010PDDA equivalent, key selection criteria include input voltage range (4.3–60 V), thermal performance in HSOIC-8 PowerPAD™, PGOOD flag accuracy, EN threshold hysteresis, and BOOT capacitor recharge behavior during high-duty-cycle operation.
Technical Context
The LMR16010PDDA implements fixed-frequency peak current mode control with internal compensation and slope compensation to prevent sub-harmonic oscillation above 50% duty cycle. It transitions to Sleep-mode below ~300 mA peak switch current, reducing switching losses while maintaining regulation via COMP voltage clamping at 400 mV.
Its bootstrap circuit enables up to ~97% effective duty cycle by actively refreshing the BOOT–SW capacitor when voltage drops below 3.2 V after 5–11 consecutive on-cycles, depending on fSW. Synchronization support (250 kHz–2.3 MHz) uses falling-edge PLL lock with automatic fallback to RT-resistor programming if clock stops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.3 V to 60 V - supports direct connection to 12 V, 24 V, 36 V, and 48 V industrial/automotive batteries without pre-regulation. |
| Output Current | 1 A continuous - delivers full rated load with thermal derating per RθJA = 42.5 °C/W in HSOIC-8 PowerPAD™ package. |
| IQ (Sleep-mode) | 40 µA typical - enables multi-year battery life in always-on monitoring systems with light-load operation. |
| fSW Range | 200 kHz to 2.5 MHz - allows trade-off between EMI filtering size (low fSW) and inductor/capacitor footprint (high fSW). |
| VFB Reference | 0.750 V ±10 mV (TJ = 25 °C) - sets output voltage via external resistor divider; enables precise 3.3 V, 5 V, or custom rails. |
| RDS(on) | 155 mΩ typical - reduces conduction loss at 1 A, improving full-load efficiency especially at high VIN/VOUT ratios. |
| PGOOD Accuracy | ±2% hysteresis around VFB - asserts open-drain flag within 92–94% (UV) and 107–109% (OV) of nominal VOUT, enabling reliable system sequencing. |
Pinout & Package
LMR16010PDDA is housed in an 8-pin HSOIC package with exposed thermal pad (4.89 mm × 3.90 mm), optimized for low RθJC(bot) = 3.8 °C/W and board-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap supply | Connects 0.1 µF ceramic capacitor to SW; supplies gate drive for high-side MOSFET during on-time. |
| VIN | Main power input | Accepts 4.3–60 V; requires low-ESR CIN placed near pin with minimal trace inductance to GND. |
| EN | Enable control | Precision threshold (1.20 V typ); internal 1 µA pull-up allows floating-enable; supports UVLO hysteresis via external divider. |
| RT/SYNC | Frequency control | Configurable as RT resistor input (200 kHz–2.5 MHz) or high-impedance sync input (250 kHz–2.3 MHz) with auto-fallback. |
| FB | Feedback sense | Monitors resistive divider output; 0.75 V reference enables accurate VOUT setting with <1% resistor tolerance. |
| PGOOD | Power status flag | Open-drain output requiring 10–100 kΩ pull-up; signals valid regulation with ±2% hysteresis window. |
| GND | System ground | Reference for all analog and power circuits; connects directly to PCB ground plane. |
| SW | Switch node | Drives external inductor; internally tied to high-side MOSFET drain; requires tight layout to minimize EMI and ringing. |
| Thermal Pad | Heat dissipation path | Exposed copper pad (Pin 9); must be soldered to solid GND plane for thermal performance and reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Internal compensation | Eliminates need for external loop compensation components, reducing BOM count and design iteration time. |
| Sleep-mode operation | Reduces IQ to 40 µA at light loads while maintaining regulation, extending battery runtime without external enable control. |
| High-duty-cycle support | BOOT capacitor refresh circuit sustains ~97% effective duty cycle, enabling operation down to VIN – VOUT ≈ 0.5 V. |
| Integrated protection | Includes cycle-by-cycle current limit, thermal shutdown (170 °C), overvoltage protection, and UVLO with hysteresis. |
| PowerPAD™ thermal design | Exposed thermal pad lowers junction-to-board resistance to 25.5 °C/W, enabling 1 A operation without heatsink in compact layouts. |
Applications
| Automotive Battery Regulation | Industrial Power Supplies |
|---|---|
Use Scenario: Regulating 12 V or 24 V vehicle battery to stable 3.3 V or 5 V for infotainment microcontrollers and CAN transceivers. IC Role / Device Role / Timing Role: Primary buck regulator providing isolated, low-noise, and fault-tolerant power rail with PGOOD sequencing and thermal protection. Use Value: 40 µA Sleep-mode IQ prevents battery drain during vehicle sleep mode; 60 V absolute max rating withstands load-dump transients. | Use Scenario: Converting unregulated 24–48 V factory floor power to 5 V for PLC I/O modules and sensor interfaces. IC Role / Device Role / Timing Role: Wide-input DC-DC front-end delivering robust, thermally efficient 1 A output with programmable fSW for EMI compliance. Use Value: Adjustable switching frequency allows optimization for either low EMI (200–500 kHz) or small magnetics (1–2.5 MHz) per system requirements. |
| Telecom/Datacom Systems | General Purpose Wide Vin Regulation |
Use Scenario: Point-of-load conversion in 48 V telecom shelves supplying 3.3 V to FPGA configuration circuitry and management ASICs. IC Role / Device Role / Timing Role: Secondary regulator with precise enable control and PGOOD signaling for hot-swap and redundancy management. Use Value: Precision EN threshold (1.20 V ±150 mV) and hysteresis enable clean power sequencing; SYNC input aligns switching to system clock domain. | Use Scenario: Universal input adapter powering diverse embedded devices (IoT gateways, edge AI sensors) from variable sources including PoE, solar, or legacy AC/DC bricks. IC Role / Device Role / Timing Role: Flexible, single-chip buck solution supporting multiple output voltages via FB divider, with robust fault handling across input extremes. Use Value: 4.3–60 V input range covers 5 V USB PD, 12 V wall adapters, 24 V DIN-rail, and 48 V telecom-reducing SKU count in multi-platform designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMR14010PDDA | 40 V max input, same 1 A rating, 45 µA IQ, identical pinout and features except lower VIN rating. | Suitable only where input never exceeds 40 V; not appropriate for 48 V telecom or load-dump-prone automotive use. | Select when cost sensitivity outweighs 60 V margin and system VIN stays ≤40 V. |
| TPS54160DGQR | 60 V input, 1.5 A, 115 µA IQ, external compensation, no PGOOD, different pinout (10-pin MSOP-PowerPAD™). | Lacks integrated PGOOD and Sleep-mode; requires loop compensation design; higher IQ limits battery life. | Choose only if higher output current or specific TI ecosystem compatibility is required and PGOOD/low-IQ are secondary. |
Compared with LMR14010PDDA and TPS54160DGQR, the LMR16010PDDA uniquely combines 60 V rating, 40 µA Sleep-mode IQ, integrated PGOOD, and internal compensation in an 8-pin HSOIC-making it optimal for space-constrained, battery-sensitive, and transient-hardened wide-VIN applications.
Availability
LMR16010PDDA is available at Aetrix Electronics and suitable for automotive battery regulation, industrial power supplies, and telecom/datacom systems requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for LMR16010PDDA 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, specializing in analog, embedded processing, and power management ICs with broad industrial, automotive, and communications reach.
The LMR16010PDDA belongs to TI's SIMPLE SWITCHER® family-engineered for ease-of-use in wide-input DC-DC conversion, emphasizing integrated FETs, internal compensation, low quiescent current, and robust protection for harsh environments.
FAQ
What is the maximum input voltage rating for the LMR16010PDDA?
The LMR16010PDDA has an absolute maximum input voltage rating of 65 V, with recommended operating range from 4.3 V to 60 V. This 60 V upper limit ensures safe operation under automotive load-dump conditions and industrial 48 V bus transients. Exceeding 60 V continuously may trigger UVLO or damage the device, even if below the 65 V absolute max stress rating.
Does the LMR16010PDDA require external compensation components?
No, the LMR16010PDDA features fully internal compensation, eliminating the need for external Type-II or Type-III compensation networks. This simplifies design, reduces BOM count, and improves stability across varied output capacitor ESR/ESL values-verified across 10 µF to 220 µF ceramic and polymer capacitors in TI's reference designs.
How does the LMR16010PDDA achieve high duty cycle operation near dropout?
The LMR16010PDDA achieves ~97% effective duty cycle using an active BOOT capacitor refresh circuit: when BOOT–SW voltage drops below 3.2 V after 5–11 consecutive on-cycles (depending on fSW), the high-side MOSFET turns off and an internal low-side switch pulls SW low to recharge the BOOT capacitor, sustaining regulation down to VIN – VOUT ≈ 0.5 V.
What is the function of the RT/SYNC pin on the LMR16010PDDA?
The RT/SYNC pin on the LMR16010PDDA serves dual functions: as an RT input (with resistor to GND) to set switching frequency from 200 kHz to 2.5 MHz, or as a high-impedance SYNC input (with external clock signal) to synchronize switching from 250 kHz to 2.3 MHz. The device automatically detects clock presence and falls back to RT mode if synchronization is lost.
Can the LMR16010PDDA be used in battery-powered systems with long standby life?
Yes-the LMR16010PDDA draws only 40 µA typical quiescent current in Sleep-mode and 1 µA in shutdown, making it ideal for battery-powered systems. In Sleep-mode, it maintains regulation by pulsing the high-side MOSFET only as needed, enabling multi-year operation on coin cells or Li-ion packs in IoT sensors and telematics modules.
LMR16010PDDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SIMPLE SWITCHER®
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.3V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 50V
- Current - Output:
- 1A
- Frequency - Switching:
- 200kHz ~ 2.5MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO PowerPad
LMR16010PDDA FAQ
1.How can I place an order for LMR16010PDDA through Aetrix?
Please submit a Request for Quotation (RFQ) for LMR16010PDDA 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 LMR16010PDDA reliable?
The price and inventory of LMR16010PDDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMR16010PDDA is usually 5 days.
3.What payment methods are accepted for LMR16010PDDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMR16010PDDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMR16010PDDA?
LMR16010PDDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMR16010PDDA 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 LMR16010PDDA?
For technical support, including LMR16010PDDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMR16010PDDA requirements.
6.How does Aetrix verify that LMR16010PDDA is sourced from the original manufacturer or authorized distributors?
All LMR16010PDDA 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 LMR16010PDDA meets industry standards.
7.What is the process for return or replacement of LMR16010PDDA?
All LMR16010PDDA units undergo pre-shipment inspection (PSI). If there is an issue with LMR16010PDDA, 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 LMR16010PDDA part is unused and in its original packaging.
Return procedure for LMR16010PDDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMR16010PDDA Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
