My Inquiry
My Account
Texas Instruments TLV61224DCKT
- Part No.:
- TLV61224DCKT
- Manufacturer:
- Texas Instruments
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
TLV61224DCKT.pdf
- Description:
- IC REG BOOST 3V 160MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:975
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV61224DCKT from Texas Instruments is a single-cell, high-efficiency synchronous step-up DC-DC converter in a 6-pin SC-70 package, delivering a fixed 3-V output from input voltages as low as 0.7 V, with up to 94% efficiency at typical loads and 5-μA quiescent current - used in battery-powered medical and personal care devices requiring ultra-low-power boost regulation.
For engineers reviewing the TLV61224DCKT datasheet, TLV61224DCKT pinout, TLV61224DCKT application, or TLV61224DCKT equivalent, key selection criteria include minimum startup voltage (0.7 V), fixed 3-V output accuracy (±5%), pass-through behavior during shutdown, integrated overvoltage/overtemperature protection, and compatibility with 4.7-μH inductors and 10-μF ceramic capacitors in space-constrained portable designs.
Technical Context
The TLV61224DCKT implements a hysteretic current-mode control architecture that maintains constant 200-mA inductor ripple current while dynamically adjusting offset to regulate output voltage under varying load conditions. Its synchronous rectification uses two internal MOSFETs - main switch (RDS(on) = 600 mΩ) and rectifying switch (RDS(on) = 1000 mΩ) - enabling high efficiency without external diodes.
Startup begins via an internal oscillator when VIN < 1.8 V, transitioning to normal hysteretic operation once VOUT reaches ~1.8 V. Undervoltage lockout (500 mV threshold, 50 mV hysteresis), overvoltage protection (5.5–7.5 V trip), and thermal shutdown (140 °C, 20 °C hysteresis) ensure robust operation across –40 °C to 85 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±5% (2.85–3.15 V); no external feedback resistors required. |
| Input Voltage Range | 0.7 V to 3.0 V; enables operation down to near-dead alkaline/NiMH cell voltage. |
| Efficiency | Up to 94% at typical loads; achieved via synchronous rectification and low-quiescent-current control. |
| Quiescent Current | 5 μA (typical); minimizes battery drain in standby or low-load states. |
| Switch Current Limit | 400 mA (typical); supports >40 mA output from 1.2-V input with proper inductor selection. |
| Shutdown Current | 0.2–1 μA; ensures minimal battery leakage when EN = 0 V. |
| Protection Features | Integrated overvoltage (5.5–7.5 V), overtemperature (140 °C), and undervoltage lockout (500 mV). |
Pinout & Package
TLV61224DCKT is housed in a 2.00 mm × 1.25 mm, 6-pin SC-70 (DCK) package with exposed pad for thermal performance and JEDEC Level-1 moisture sensitivity rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply connection | Accepts 0.7–3.0 V input; connects to battery or low-voltage source and input capacitor. |
| L | Inductor connection node | Drives external 4.7-μH inductor; carries peak switch current up to 400 mA. |
| GND | Power and logic ground reference | Common return path for control circuitry and power stage; must be low-impedance. |
| VOUT | Regulated output voltage node | Delivers fixed 3.0 V; connects directly to load and output capacitor (min. 10 μF). |
| FB | Feedback sense input | Internally tied to output divider; must be shorted directly to VOUT for fixed-output operation. |
| EN | Enable control input | Active-high digital enable (VIH ≥ 0.8×VIN or ≥1.2 V); disables switching and reduces current to <1 μA. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous boost topology | Eliminates external Schottky diode; reduces conduction loss and improves efficiency at light loads. |
| Hysteretic current-mode control | Maintains stable regulation without compensation components; adapts switching frequency to load and input conditions. |
| Pass-through function during shutdown | Allows VIN to appear at VOUT via body diode of rectifying MOSFET; preserves partial system functionality when disabled. |
| Ultra-low quiescent current | 5 μA enables multi-year battery life in intermittent-use applications like glucose meters or pulse oximeters. |
| Integrated protection suite | Prevents damage from overvoltage, overtemperature, and deep battery discharge without external circuitry. |
Applications
| Portable Medical Sensors | Personal Care Devices |
|---|---|
Use Scenario: Continuous glucose monitoring patch powered by a single alkaline button cell. IC Role / Device Role / Timing Role: Step-up regulator maintaining stable 3-V rail for analog front-end and BLE radio despite falling battery voltage (0.9–1.5 V). Use Value: Enables >2-year battery life via 5-μA quiescent current and 94% peak efficiency at 10–30 mA loads. |
Use Scenario: Electric toothbrush with Li-primary battery and motor driver IC requiring regulated 3-V logic supply. IC Role / Device Role / Timing Role: Primary voltage booster converting 1.0–2.8 V battery output to fixed 3.0 V for microcontroller and sensor interface. Use Value: Supports operation down to 0.7 V input, extending usable battery range and eliminating premature shutdown. |
| Wireless Remote Controls | Low-Power IoT Sensors |
Use Scenario: Sub-GHz RF remote using two NiMH cells (1.2–2.4 V) powering a 3-V transceiver IC. IC Role / Device Role / Timing Role: Efficient voltage translator ensuring consistent RF output power and modulation fidelity across battery discharge curve. Use Value: Delivers >40 mA output from 1.2-V input with <0.5% load regulation, preventing signal dropouts during transmission bursts. |
Use Scenario: Environmental sensor node powered by single alkaline AA cell in cold storage environments (–20 °C). IC Role / Device Role / Timing Role: Cold-tolerant boost converter sustaining 3-V supply for MCU and I²C sensors at low temperatures and low input voltage. Use Value: Operates from –40 °C to 85 °C with UVLO hysteresis preventing oscillation near battery cutoff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61200DRCT | Adjustable output (0.9–5.5 V); higher 1.2-A switch current; 20-μA IQ; 5-pin SOT-23 package. | Requires external feedback resistors; better suited for multi-rail systems needing flexibility over fixed 3-V output. | Choose TPS61200DRCT when output voltage programmability or higher output current (>40 mA) is required. |
| MAX17222ELT+T | Fixed 3.3-V output; 1.5-μA IQ; 0.4-V min start-up; 6-pin WLP package (1.54 × 1.54 mm). | Lower quiescent current and smaller footprint, but lacks overvoltage/overtemperature protection and has tighter input range (0.4–5.5 V). | Choose MAX17222ELT+T only for ultra-low-power, space-constrained designs where protection features are handled externally. |
Compared with TLV61224DCKT, TPS61200DRCT offers greater output flexibility and current capability at the cost of higher quiescent current and no integrated OVP/OTP, while MAX17222ELT+T achieves lower IQ and smaller size but sacrifices protection and robustness for marginal input voltage advantage.
Availability
TLV61224DCKT is available at Aetrix Electronics and suitable for portable medical sensors, personal care devices, wireless remotes, and low-power IoT sensors requiring stable component supply with guaranteed long-term manufacturability and traceable sourcing.
Supply support for TLV61224DCKT 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, embedded processing, and connectivity technologies, with leadership in power management ICs for battery-operated systems.
The TLV61224DCKT belongs to TI's low-voltage boost converter product line, designed specifically for energy-constrained applications powered by single- or dual-cell alkaline, NiMH, or Li-primary batteries.
FAQ
What is the minimum input voltage required for TLV61224DCKT to start switching?
The TLV61224DCKT requires a minimum input voltage of 0.7 V to initiate startup. Below this threshold, the device remains in UVLO state and will not switch. The undervoltage lockout has a 50-mV hysteresis, so the device resumes operation only when VIN rises above 0.75 V after dropping below 0.7 V. This allows reliable operation from nearly depleted alkaline or NiMH cells.
Does TLV61224DCKT require external feedback resistors to set its output voltage?
No, TLV61224DCKT does not require external feedback resistors. It features an internally trimmed fixed 3.0-V output, and the FB pin must be connected directly to VOUT to enable regulation. Adding external resistors would disrupt the internal feedback network and cause incorrect or unstable output voltage.
How does TLV61224DCKT behave when the EN pin is pulled low?
When EN is pulled low, TLV61224DCKT enters shutdown mode: switching ceases, control circuitry powers down, and quiescent current drops to 0.2–1 μA. However, due to the body diode of the internal rectifying MOSFET, VIN appears at VOUT (minus diode drop), enabling passive pass-through - useful for maintaining partial system bias during sleep modes.
What inductor value is recommended for TLV61224DCKT, and why?
Texas Instruments recommends a 4.7-μH inductor (e.g., Coilcraft EPL3015-472MLB) for TLV61224DCKT. This value balances efficiency, transient response, and physical size across the full input range (0.7–3.0 V). Inductors rated ≥400 mA DC current ensure reliable operation during load transients, and values >4.7 μH reduce switching frequency and losses, while <2.2 μH is discouraged due to instability risk.
Is TLV61224DCKT RoHS-compliant and suitable for lead-free reflow?
Yes, TLV61224DCKT is RoHS-compliant (lead finish: NiPdAu) and rated for JEDEC Level-1 moisture sensitivity with unlimited floor life at ≤30 °C/60% RH. Its peak reflow temperature is 260 °C, making it fully compatible with standard lead-free soldering processes without special baking requirements.
TLV61224DCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.7V
- Voltage - Input (Max):
- 3V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 160mA (Switch)
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
TLV61224DCKT FAQ
1.How can I place an order for TLV61224DCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV61224DCKT 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 TLV61224DCKT reliable?
The price and inventory of TLV61224DCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV61224DCKT is usually 5 days.
3.What payment methods are accepted for TLV61224DCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV61224DCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV61224DCKT?
TLV61224DCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV61224DCKT 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 TLV61224DCKT?
For technical support, including TLV61224DCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV61224DCKT requirements.
6.How does Aetrix verify that TLV61224DCKT is sourced from the original manufacturer or authorized distributors?
All TLV61224DCKT 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 TLV61224DCKT meets industry standards.
7.What is the process for return or replacement of TLV61224DCKT?
All TLV61224DCKT units undergo pre-shipment inspection (PSI). If there is an issue with TLV61224DCKT, 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 TLV61224DCKT part is unused and in its original packaging.
Return procedure for TLV61224DCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV61224DCKT 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…
