My Inquiry
My Account
Texas Instruments TPS62842DGRR
- Part No.:
- TPS62842DGRR
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TPS62842DGRR.pdf
- Description:
- IC REG BUCK ADJ 750MA 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,435
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62842DGRR from Texas Instruments is a synchronous step-down DC-DC converter optimized for ultra-low-power battery-operated systems, delivering up to 750 mA output current with 60 nA typical quiescent current (IQ), 1.8 V to 6.5 V input range, and 16 selectable output voltages (1.8 V, 2.0 V, 2.2 V, 2.4 V–3.6 V in 100-mV steps) via external RSET resistor - deployed in smart meters, wearable sensors, and NB-IoT endpoints.
For engineers reviewing the TPS62842DGRR datasheet, TPS62842DGRR pinout, TPS62842DGRR application, or TPS62842DGRR equivalent, this page delivers verified package mapping (HVSSOP-8/DGR), confirmed DCS-Control™ topology, validated STOP/EN/MODE control logic, and real-world efficiency data at microamp loads - enabling rapid low-power supply design without speculative assumptions.
Technical Context
The TPS62842DGRR implements TI's DCS-Control™ topology with dual-loop regulation: a fast AC loop sensing VOS for transient response and ripple suppression, plus a stable DC loop for precise load/line regulation. It supports seamless PFM/PWM transition and 100% duty-cycle operation at 120 nA IQ for end-of-battery-life extension.
Its HVSSOP-8 (DGR) package integrates thermal pad (EP) tied to GND, features dedicated STOP pin for noise-free measurement windows, and uses R2D conversion on VSET to decode E96-series resistors (0.909 kΩ–267 kΩ) into fixed output voltages - eliminating digital interface overhead while ensuring ±1.5% output accuracy at ≥1.8 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 6.5 V - supports 2S–4S alkaline, 1S–2S Li-MnO₂, or 1S Li-ion/Li-SOCl₂ batteries without external LDO pre-regulation. |
| Output Current | 750 mA - sufficient for MCU + RF transceiver + sensor subsystems in compact IoT nodes. |
| Quiescent Current (IQ) | 60 nA typical - enables >10-year battery life in always-on wake-up circuits (e.g., BLE beacon sleep mode). |
| Switching Frequency | 1.8 MHz nominal - allows use of small 2.2 µH inductors and 10 µF output capacitors, reducing solution footprint. |
| Output Voltage Accuracy | ±1.5% for VOUT ≥ 1.8 V - ensures reliable core voltage margining for 1.8 V/3.3 V MCUs without post-regulation trimming. |
| Shutdown Current | 25 nA - minimizes leakage during deep-sleep states in safety-critical or energy-harvesting applications. |
| Thermal Resistance (RθJA) | 54.4 °C/W - enables full 750 mA output at +85°C ambient with standard PCB copper pour (JEDEC 51-7). |
Pinout & Package
HVSSOP-8 (DGR) package with exposed thermal pad (EP) requiring GND connection; 3 mm × 5 mm body size; 0.65 mm pitch; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 1.8–6.5 V; requires 4.7 µF ceramic capacitor placed adjacent to minimize switching noise injection. |
| GND | Ground reference | Common return for VIN, VOS, EN, MODE, STOP; must be connected to EP thermal pad for thermal performance. |
| SW | Switch node | Connects internal high-/low-side MOSFETs to external 2.2 µH inductor; high dv/dt node requiring short trace routing. |
| VOS | Output voltage sense & discharge | Directly connects to output capacitor; enables automatic VOUT discharge during shutdown (16–44 mA sink capability). |
| VSET | Output voltage selection | Resistor-to-GND sets VOUT via R2D conversion; tolerates ≤100 pF parasitic capacitance to avoid misconfiguration. |
| EN | Enable control | Active-high logic; internal 450 kΩ pulldown prevents floating start-up; disables converter and reduces IQ to 25 nA. |
| MODE | Operating mode select | Low = auto PFM/PWM transition; high = forced PWM (lower ripple, higher light-load IQ); must be terminated. |
| STOP | Noise-free supply enable | High = immediate switching halt (output powered by CO only); low = resume operation; internal pulldown active. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Combines hysteretic speed and voltage-mode stability - achieves <10 mV load transient undershoot/overshoot with 1.8 MHz switching. |
| 16-step VSET programming | Single E96 resistor selects fixed output (1.8–3.6 V in 100-mV steps); eliminates need for I²C/DAC interface in space-constrained designs. |
| STOP pin functionality | Halts switching within nanoseconds to eliminate conducted/radiated noise during precision ADC sampling or RF transmission windows. |
| 100% duty-cycle mode | Extends runtime at end-of-battery by maintaining regulation down to VIN ≈ VOUT with only 120 nA IQ - critical for Li-SOCl₂ cells. |
| Output discharge | Internal VOS-sink MOSFET discharges VOUT to <100 mV in <10 ms after EN deactivation - prevents back-powering of upstream circuitry. |
Applications
| Smart Metering | Wearable Health Monitoring |
|---|---|
|
Use Scenario: Long-term battery-powered utility meter with hourly RF reporting and daily firmware updates. IC Role / Device Role / Timing Role: Primary system power regulator supplying 1.8 V to MCU and 3.3 V to sub-GHz transceiver via dual-rail configuration. Use Value: 60 nA IQ extends 10-year battery life; STOP pin silences switching during RF transmit bursts to prevent spectral interference. |
Use Scenario: Disposable medical patch continuously measuring ECG/temperature with Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Single-output 2.0 V regulator powering ultra-low-power ARM Cortex-M0+ MCU and analog front-end. Use Value: 100% duty-cycle mode sustains operation as coin-cell voltage drops from 3.0 V to 2.0 V; RSET programming avoids BOM proliferation. |
| Industrial IoT Sensor Node | NB-IoT Asset Tracker |
|
Use Scenario: Dust-proof environmental sensor collecting temperature/humidity/pressure every 5 minutes and transmitting via LoRaWAN. IC Role / Device Role / Timing Role: High-efficiency buck converter delivering 3.3 V to LoRa transceiver and 1.8 V to ultra-low-leakage MCU. Use Value: 80% efficiency at 1 µA load preserves battery during 99% sleep time; DCS-Control ensures clean 3.3 V rail during 100-ms transmit window. |
Use Scenario: GPS-enabled logistics tracker operating on primary lithium battery with 5-year field deployment requirement. IC Role / Device Role / Timing Role: Input-stage regulator accepting 2S Li-MnO₂ (2.0–4.2 V) and stepping to 3.3 V for GPS module and cellular modem. Use Value: 54.4 °C/W RθJA enables full 750 mA output at +70°C inside sealed enclosure; UVLO (1.72 V) prevents brownout resets during cold starts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62840DLC | SON-8 package (1.5 mm × 2 mm); same 60 nA IQ and 750 mA rating; includes STOP and output discharge; supports 1.8–3.3 V outputs in 100-mV steps. | Preferred for space-constrained PCBs where thermal pad access is limited; lacks MODE pin (auto PFM/PWM only). | Select when board area is critical and forced PWM mode is unnecessary; verify SON-8 soldering process compatibility. |
| TPS62841DGR | HVSSOP-8 package identical to TPS62842DGRR; supports 0.8–1.55 V outputs in 50-mV steps; same IQ, STOP, and discharge features. | Targeted at low-voltage cores (e.g., 1.2 V FPGA I/O, 1.0 V DSP domains); incompatible with 1.8+ V rails due to VOUT range limitation. | Choose for sub-1.6 V applications requiring identical thermal and layout footprint; confirm RSET resistor values match 0.8–1.55 V table. |
Compared with TPS62840DLC and TPS62841DGR, the TPS62842DGRR uniquely combines HVSSOP-8 thermal performance with 1.8–3.6 V programmability - making it optimal for industrial sensors and asset trackers needing both robust thermal management and mid-range output flexibility.
Availability
TPS62842DGRR is available at Aetrix Electronics and suitable for smart metering, wearable health monitoring, and industrial IoT sensor nodes requiring stable component supply across multi-year production cycles.
Supply support for TPS62842DGRR 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 leader specializing in analog, embedded processing, and power management ICs, with over 50 years of innovation in energy-efficient power conversion.
The TPS6284x family was designed specifically for battery-powered edge devices demanding nanowatt IQ, RF-friendly operation, and flexible output voltage selection - targeting smart infrastructure, medical wearables, and LPWAN endpoints.
FAQ
What is the minimum input voltage required for TPS62842DGRR to regulate output?
The TPS62842DGRR features undervoltage lockout (UVLO) with rising threshold at 1.8 V (min 1.72 V). Below this, the device remains disabled. Regulation begins once VIN exceeds 1.72 V and EN is asserted; full 750 mA output is supported down to VIN = VOUT + dropout (≈100 mV at light load). For 1.8 V output, stable operation starts at ~1.9 V input.
How does the STOP pin affect output voltage stability in TPS62842DGRR?
When STOP is driven high, the TPS62842DGRR halts switching immediately and supplies load current solely from the output capacitor (CO). Output voltage droops linearly based on load current and CO value - e.g., with 10 µF CO and 10 mA load, VOUT falls at ~1 V/ms. This enables noise-free analog measurements but requires careful CO sizing for hold-up time.
Can TPS62842DGRR be used with ceramic output capacitors smaller than 10 µF?
Yes - the TPS62842DGRR is specified for 3–40 µF effective output capacitance. While 10 µF is recommended for optimal transient response and stability, 4.7 µF X7R ceramics work reliably with proper layout (short traces, ground plane). Avoid <3 µF as it may degrade phase margin and increase ripple beyond 20 mVpp.
What is the maximum allowable parasitic capacitance on the VSET pin of TPS62842DGRR?
The TPS62842DGRR VSET pin tolerates ≤100 pF total parasitic capacitance to ground. Exceeding this risks false R2D conversion during startup, causing incorrect output voltage. Use short, isolated traces; avoid nearby vias or copper pours; and select E96 resistors with low parasitic inductance (<1 nH) to ensure reliable 1.8–3.6 V selection.
Does TPS62842DGRR require an external soft-start capacitor?
No - the TPS62842DGRR integrates internal soft-start with fixed 120 µs ramp time (tSS) and reduced switch current limit (ILIMF_SS = 150–225 mA). External components are unnecessary; however, the EN pin must be slew-rate controlled if driven by slow GPIOs to prevent unintended partial enable sequences that could stress the SW node.
TPS62842DGRR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 2.4V
- Voltage - Output (Max):
- 3.6V
- Current - Output:
- 750mA
- Frequency - Switching:
- 1.8MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TPS62842DGRR FAQ
1.How can I place an order for TPS62842DGRR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62842DGRR 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 TPS62842DGRR reliable?
The price and inventory of TPS62842DGRR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62842DGRR is usually 5 days.
3.What payment methods are accepted for TPS62842DGRR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62842DGRR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62842DGRR?
TPS62842DGRR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62842DGRR 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 TPS62842DGRR?
For technical support, including TPS62842DGRR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62842DGRR requirements.
6.How does Aetrix verify that TPS62842DGRR is sourced from the original manufacturer or authorized distributors?
All TPS62842DGRR 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 TPS62842DGRR meets industry standards.
7.What is the process for return or replacement of TPS62842DGRR?
All TPS62842DGRR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62842DGRR, 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 TPS62842DGRR part is unused and in its original packaging.
Return procedure for TPS62842DGRR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62842DGRR 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…
