My Inquiry
My Account
Texas Instruments TPS7A1601DRBT
- Part No.:
- TPS7A1601DRBT
- Manufacturer:
- Texas Instruments
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
TPS7A1601DRBT.pdf
- Description:
- IC REG LINEAR POS ADJ 100MA 8SON
- Quantity:
- Payment:
- Shipping:
Inventory:1,587
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS7A1601DRBT from Texas Instruments is an adjustable ultralow-quiescent-current LDO voltage regulator designed for high-input-voltage battery-powered systems. It delivers 100 mA output with 5 µA quiescent current, 60 mV dropout at 20 mA, ±2% output accuracy, and operates across 3 V to 60 V input range - enabling use in automotive load-dump tolerant power rails and long-life smoke detectors.
For engineers reviewing the TPS7A1601DRBT datasheet, TPS7A1601DRBT pinout, TPS7A1601DRBT application, or TPS7A1601DRBT equivalent, key selection considerations include its programmable power-good delay, thermal shutdown (170°C), UVLO (2.7 V), adjustable 1.169–18.5 V output, and compatibility with ceramic capacitors ≥2.2 µF.
Technical Context
The TPS7A1601DRBT integrates a precision bandgap reference (1.193 V typ), error amplifier, PNP pass transistor, and open-drain power-good comparator with user-programmable delay via external capacitor on the DELAY pin. Its feedback architecture enables stable regulation across wide VIN and temperature ranges (–40°C to 125°C).
Functional modes include normal regulation, dropout operation (VIN < VOUT + VDO), and disabled state triggered by EN low or thermal shutdown. Protection features include internal current limit (225 mA typ), undervoltage lockout (2.7 V), and thermal cycling (170°C trip / 150°C recovery).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 60 V - supports automotive transients and multi-cell battery packs without external surge clamping. |
| Quiescent Current | 5 µA at 25°C - extends battery life in always-on security sensors and CO₂ detectors. |
| Output Accuracy | ±2% over temperature and load - ensures reliable microcontroller reset thresholds and ADC reference stability. |
| Dropout Voltage | 60 mV at 20 mA - maintains regulation even with small VIN–VOUT margins in low-power subsystems. |
| Power-Good Delay | User-programmable via CDELAY (e.g., 12 ms with 10 nF) - enables precise sequencing of downstream logic after rail stabilization. |
| Thermal Shutdown | 170°C trip / 150°C recovery - provides self-protecting operation under sustained overload or poor PCB heatsinking. |
| Feedback Voltage | 1.193 V (typ) - sets adjustable output range from 1.169 V to 18.5 V using external resistor divider. |
Pinout & Package
TPS7A1601DRBT uses the 3.00 mm × 3.00 mm VSON-8 (DRB) package with exposed PowerPAD™ for enhanced thermal performance (RθJB = 11.3°C/W). The PowerPAD must be soldered to GND plane for rated thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Regulated output | Delivers up to 100 mA; requires ≥2.2 µF ceramic capacitor to GND for stability. |
| FB/DNC (Pin 2) | Feedback input | Connects to resistor divider to set output voltage; floating or tied to OUT for fixed-output variants. |
| PG (Pin 3) | Open-drain power-good | Active-high when VOUT > 85% VOUT(NOM); pulled low during fault or startup until delay expires. |
| GND (Pin 4) | Ground reference | Common return for IN, OUT, PG, DELAY, and EN; connects to PowerPAD for thermal path. |
| DELAY (Pin 7) | PG delay timing | Charged by 1–2 µA current to set tDELAY = (CDELAY × 1.193 V) / IDELAY; open if delay not needed. |
| EN (Pin 5) | Enable control | CMOS-compatible; high ≥1.2 V enables regulator, low ≤0.3 V disables it (1 µA shutdown current). |
| IN (Pin 8) | Unregulated input | Accepts 3–60 V; requires ≥0.1 µF ceramic capacitor to GND; TI recommends 10 µF for transient immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow IQ | 5 µA operating / 0.59 µA shutdown - reduces standby power in battery-backed alarm systems by >95% vs typical LDOs. |
| Wide VIN range | 3 V to 60 V - eliminates need for pre-regulator in automotive infotainment and power-tool battery management. |
| Programmable PG delay | Configurable from microseconds to seconds via CDELAY - enables clean system-level power sequencing without external timers. |
| Ceramic capacitor stable | Stable with ≥2.2 µF X7R/X5R ceramics - avoids costly tantalum or electrolytic capacitors and improves reliability. |
| Integrated protections | UVLO (2.7 V), current limit (225 mA typ), thermal shutdown (170°C) - reduces BOM count and design validation effort. |
Applications
| Automotive Infotainment | Smoke/CO₂ Detectors |
|---|---|
Use Scenario: Powering MCU, display driver, and CAN transceiver in head unit during cold-crank (4.5 V) and load-dump (60 V) events. IC Role / Device Role / Timing Role: Primary 3.3 V or 5 V LDO supplying core logic with programmable PG delay to hold reset until stable. Use Value: Withstands 60 V transients without external TVS; 5 µA IQ extends backup battery life during ignition-off monitoring. |
Use Scenario: Long-life battery-powered sensor node detecting smoke particles and CO₂ concentration over 10+ years. IC Role / Device Role / Timing Role: Adjustable LDO generating 1.8 V or 3.3 V for ultra-low-power MCU and electrochemical sensor interface. Use Value: 5 µA IQ minimizes annual battery drain; ±2% accuracy ensures consistent ADC reference across temperature extremes. |
| Industrial PLC I/O Modules | High-Cell Battery Packs |
Use Scenario: Providing isolated 5 V supply for digital isolators and RS-485 transceivers in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Secondary LDO fed from 24 V industrial bus; PG signal synchronizes firmware boot with fieldbus readiness. Use Value: 60 mV dropout preserves regulation during brownouts; programmable PG delay prevents spurious resets during bus recovery. |
Use Scenario: Generating 3.3 V for BMS MCU and cell monitor ICs in 12–20S lithium-ion power tool packs (42–84 V nominal). IC Role / Device Role / Timing Role: High-voltage input LDO stepping down pack voltage; EN controlled by BMS to disable during deep discharge. Use Value: 60 V max VIN accepts full pack voltage; 1 µA shutdown current prevents parasitic drain during storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable high-voltage LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT3015EDD#PBF | 45 V max VIN, 25 µA IQ, 300 mA output, fixed/adj versions - higher IQ and lower voltage rating than TPS7A1601DRBT. | Lacks programmable PG delay; requires external circuitry for power sequencing. | Choose when higher output current (300 mA) is required and 45 V input suffices; avoid for 60 V automotive transients. |
| NCP163AMX330TBG | 5.5 V max VIN, 1.5 µA IQ, 250 mA output - ultra-low IQ but incompatible with >5.5 V inputs. | Only suitable for single-cell Li-ion or 3.3 V logic rails; no PG or delay functionality. | Use only in sub-5.5 V battery systems where minimal IQ dominates; not a functional substitute for TPS7A1601DRBT's HV capability. |
Compared with LT3015EDD#PBF and NCP163AMX330TBG, TPS7A1601DRBT uniquely combines 60 V input tolerance, 5 µA IQ, and integrated programmable power-good - making it the sole option for automotive-grade, long-life, sequenced LDO designs above 45 V.
Availability
TPS7A1601DRBT is available at Aetrix Electronics and suitable for automotive infotainment, battery-powered safety sensors, and industrial PLC I/O modules requiring stable component supply across extended temperature and voltage ranges.
Supply support for TPS7A1601DRBT 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 specializing in analog and embedded processing technologies, with leadership in power management ICs and high-reliability industrial solutions.
The TPS7A16 family was developed specifically for ultralow-power, high-input-voltage LDO applications in battery-backed safety systems, automotive electronics, and portable industrial equipment - prioritizing longevity, transient robustness, and integration.
FAQ
What is the maximum input voltage rating for TPS7A1601DRBT?
The TPS7A1601DRBT has an absolute maximum input voltage of 62 V, with recommended operation up to 60 V. This allows direct connection to automotive batteries during load-dump events (ISO 7637-2 Pulse 5a) without external clamping, provided thermal limits are observed per the DRB package's RθJB = 11.3°C/W specification.
How is the output voltage set on TPS7A1601DRBT?
The TPS7A1601DRBT is an adjustable LDO whose output voltage is set by an external resistor divider connected between OUT, FB, and GND. Using the internal 1.193 V reference, VOUT = 1.193 V × (1 + R1/R2). Example: 5 V output uses R1 = 3.4 MΩ and R2 = 1.07 MΩ, achieving ±(2% + 0.39%) total accuracy with 0.1% resistors.
Does TPS7A1601DRBT require special output capacitance?
No - TPS7A1601DRBT is stable with ceramic output capacitors ≥2.2 µF (X7R or X5R dielectric). TI recommends 10 µF for optimal transient response. Unlike older LDOs, it does not require ESR-based damping, eliminating need for tantalum or aluminum electrolytic capacitors and improving long-term reliability.
What is the purpose of the DELAY pin on TPS7A1601DRBT?
On TPS7A1601DRBT, the DELAY pin controls the power-good assertion delay by charging an external capacitor (CDELAY) at ~1 µA. The resulting delay time is tDELAY = (CDELAY × 1.193 V) / 1 µA - e.g., 10 nF yields ~12 ms. This enables precise sequencing of downstream logic without external timers or microcontroller intervention.
Can TPS7A1601DRBT operate with zero load current?
Yes - TPS7A1601DRBT is fully specified and stable at IOUT = 0 mA. Its 5 µA quiescent current remains constant across load, and ground current increases only marginally (to ~5 µA at 100 mA), making it ideal for always-on monitoring circuits like smoke detectors where load may be intermittent or near-zero for extended periods.
TPS7A1601DRBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- 18.5V
- Voltage Dropout (Max):
- 0.5V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 15 µA
- Current - Supply (Max):
- -
- PSRR:
- 50dB (100Hz)
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SON (3x3)
TPS7A1601DRBT FAQ
1.How can I place an order for TPS7A1601DRBT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7A1601DRBT 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 TPS7A1601DRBT reliable?
The price and inventory of TPS7A1601DRBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7A1601DRBT is usually 5 days.
3.What payment methods are accepted for TPS7A1601DRBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7A1601DRBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7A1601DRBT?
TPS7A1601DRBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7A1601DRBT 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 TPS7A1601DRBT?
For technical support, including TPS7A1601DRBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7A1601DRBT requirements.
6.How does Aetrix verify that TPS7A1601DRBT is sourced from the original manufacturer or authorized distributors?
All TPS7A1601DRBT 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 TPS7A1601DRBT meets industry standards.
7.What is the process for return or replacement of TPS7A1601DRBT?
All TPS7A1601DRBT units undergo pre-shipment inspection (PSI). If there is an issue with TPS7A1601DRBT, 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 TPS7A1601DRBT part is unused and in its original packaging.
Return procedure for TPS7A1601DRBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS7A1601DRBT Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
