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Texas Instruments UCC39413DG4
- Part No.:
- UCC39413DG4
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
UCC39413DG4.pdf
- Description:
- IC REG BOOST 5V 60MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,810
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Product details
Overview
UCC39413DG4 from Texas Instruments is a low-power synchronous boost converter IC optimized for single/dual alkaline battery operation, delivering 5 V / 200 mW output with adaptive current-mode control, 0.5 Ω charge switch RDS(on), 1.2 Ω synchronous rectifier RDS(on), and programmable reset timing via CT pin. It supports startup at 1 V input under full load and operates down to 0.5 V in regulation, targeting portable power management in pagers and cell phones.
For engineers reviewing the UCC39413DG4 datasheet, UCC39413DG4 pinout, UCC39413DG4 application, or UCC39413DG4 equivalent, key selection criteria include its 5 V fixed output, dual-output capability (VOUT + 7–9.3 V VGD), shutdown supply current of 3–6 µA, and SOIC-8 (D) package compatibility with industrial temperature range (0°C to 70°C).
Technical Context
The UCC39413DG4 implements multiplexed dual-output control: primary 5 V output takes priority unless VGD falls below ~6.3 V, triggering dedicated VGD servicing in discontinuous mode. Its bang-bang adaptive current-mode architecture transitions between discontinuous and continuous conduction based on load, optimizing efficiency across milliwatt-to-200-mW range.
Internal circuitry includes glitch-filtered active-low RESB reset output (threshold = 4.32–4.68 V), SD/FB pin serving solely as shutdown control (0.4–0.9 V threshold), and CT-based reset period programming (tRP = C × 1.25 s). The IC draws power from VIN during startup, then switches to VOUT or VGD for bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 5.0 V ±2% (4.8–5.2 V), regulated over 1–5 V input and 0–60 mA load |
| VGD output | Coarsely regulated 9.3 V (max), used for internal gate drive; maintains >7.7 V under 10 mA load |
| Startup voltage | Ensured start-up at 1.0 V input under full 60 mA load; operational down to 0.5 V post-startup |
| Shutdown current | 3–6 µA at SD = GND, enabling ultra-low-power battery preservation during standby |
| Reset threshold | 4.32–4.68 V (90% of 5 V nominal), with programmable delay via external CT capacitor |
| Switch RDS(on) | 0.5–0.75 Ω (charge switch), 1.2–1.8 Ω (synchronous rectifier), minimizing conduction loss at 200 mW |
| Efficiency peak | Up to 85% at 1.2 V input / 20 mA load (L = 22 µH), critical for alkaline/NiMH battery runtime |
Pinout & Package
UCC39413DG4 is housed in an 8-pin SOIC (D) package per JEDEC MS-012, with 1.27 mm lead pitch, 3.9 mm body width, and 1.75 mm max height. Pin 1 identifier is a beveled corner; device marking reads "39413".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply | Accepts 1.1–3.2 V input; powers IC during startup before VOUT/VGD takeover |
| SD/FB | Shutdown control | Dedicated shutdown pin (0.4–0.9 V threshold); not used for feedback in UCC39413 |
| RESB | Reset output | Open-drain active-low signal asserting when VOUT drops <4.32 V; sinks 1–20 mA |
| CT | Reset timer | Connects to ground capacitor to set reset period (tRP = C × 1.25 s) |
| VGD | Gate-drive supply | Provides ~9.3 V auxiliary output for internal MOSFET drivers; prioritized if <6.3 V |
| VOUT | Main output | Regulated 5.0 V output; highest priority in multiplexing unless VGD <6.3 V |
| SW | Switch node | Connects to inductor and flyback diode; toggles to charge inductor and transfer energy |
| GND | Ground reference | Common return for all internal circuits and external components |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive current-mode control | Automatically shifts between discontinuous and continuous conduction to maximize efficiency from µW to 200 mW loads |
| Programmable reset timing | External CT capacitor sets reset hold-off period (e.g., 0.15 µF → 188 ms), preventing MCU corruption during brownout |
| Dual-output multiplexing | Intelligently alternates energy delivery between 5 V VOUT and 9.3 V VGD, ensuring both rails stay regulated without extra inductors |
| Ultra-low shutdown current | 3–6 µA shutdown supply enables multi-year battery life in intermittent-use devices like remote controls |
| Single-inductor architecture | Eliminates need for separate VGD inductor by reusing main 22 µH inductor, reducing BOM count and PCB area |
Applications
| Pager Power Supply | Cell Phone Backup Rail |
|---|---|
Use Scenario: Alkaline-powered pager requiring stable 5 V for RF transceiver and microcontroller during intermittent transmission bursts. IC Role / Device Role / Timing Role: Primary 5 V regulator and VGD source for internal switching FETs; manages priority-based rail servicing during burst-mode operation. Use Value: Enables reliable 1 V–3.2 V battery operation with 85% peak efficiency, extending alkaline cell life beyond 6 months per set. | Use Scenario: Secondary 5 V rail in GSM handset, powering SIM interface and real-time clock during main PMIC shutdown. IC Role / Device Role / Timing Role: Standby boost converter activated only when main supply fails; RESB triggers system reset if VOUT dips below 4.5 V. Use Value: Provides fail-safe 5 V backup with <6 µA quiescent draw, preserving battery for >30 days in storage mode. |
| Low-Voltage IoT Sensor Node | Medical Glucose Meter |
Use Scenario: Battery-operated environmental sensor using single AA cell, needing 5 V for ADC reference and BLE radio transmission. IC Role / Device Role / Timing Role: Main power source stepping up 1.2 V battery to regulated 5 V; CT-programmed reset ensures clean MCU boot after cold start. Use Value: Delivers 200 mW at >75% efficiency down to 0.8 V input, supporting 2+ years of field deployment on one cell. | Use Scenario: Portable glucose meter powered by two AAA alkaline cells, requiring precise 5 V for electrochemical sensor bias and display backlight. IC Role / Device Role / Timing Role: Primary DC-DC converter with RESB-driven microcontroller reset to prevent erroneous readings during battery depletion. Use Value: Maintains 5.0 V ±2% regulation across full battery discharge (3.2 V → 0.8 V), ensuring clinical-grade measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC39412DG4 | Fixed 3.3 V output (vs. 5 V); VGD regulated to 7.7 V (vs. 9.3 V); identical SOIC-8 package and pinout | Targets 3.3 V logic systems (e.g., MSP430, nRF52), not 5 V peripherals; lower VGD limits gate-drive margin for high-side switches | Select UCC39412DG4 only when system requires 3.3 V main rail and can operate with 7.7 V VGD |
| TPS61200DRCT | Adjustable output (0.9–5.5 V) via FB resistor divider; higher 1.2 A switch current; 2.5 µA shutdown current; 10-pin SON package | Requires external feedback resistors and layout changes; better suited for variable-load designs needing >200 mW or tighter output tolerance | Choose TPS61200DRCT for adjustable outputs or when 1.2 A peak current exceeds UCC39413DG4's 715 mA limit |
Compared with UCC39412DG4 and TPS61200DRCT, the UCC39413DG4 offers optimal integration for fixed 5 V/9.3 V dual-rail alkaline systems-no external resistors needed, lowest BOM cost among alternatives, and proven reliability in high-volume portable electronics.
Availability
UCC39413DG4 is available at Aetrix Electronics and suitable for portable medical devices, battery-powered communication modules, and low-power IoT edge nodes requiring stable component supply across extended product lifecycles.
Supply support for UCC39413DG4 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 and embedded processing technologies, with decades of expertise in power management IC design and manufacturing.
The UCCx9411 family-including UCC39413DG4-is engineered specifically for ultra-low-voltage battery-powered applications such as pagers and cell phones, emphasizing wide-input-range efficiency, dual-output integration, and minimal external component count.
FAQ
What is the guaranteed minimum startup voltage for UCC39413DG4 under full load?
The UCC39413DG4 guarantees startup at 1.0 V input voltage under full 60 mA load, as specified in the Electrical Characteristics table. Once operating, it continues regulation down to 0.5 V input. This ensures reliable turn-on from nearly depleted alkaline or NiMH cells, making UCC39413DG4 ideal for long-life portable devices where battery voltage sag is common.
How does the UCC39413DG4 manage priority between its VOUT and VGD outputs?
The UCC39413DG4 uses hardware-based multiplexing logic: VOUT (5 V) has highest priority unless VGD falls below ~6.3 V, at which point VGD servicing takes precedence. This ensures gate-drive voltage remains sufficient for internal FETs while maintaining main output regulation. The behavior is intrinsic to the IC's control architecture and requires no external configuration.
Can the UCC39413DG4 be used with an adjustable output voltage instead of fixed 5 V?
No-the UCC39413DG4 is factory-trimmed for fixed 5.0 V output and lacks a feedback (FB) pin for external resistor programming. Unlike the UCC39411 variant, its SD/FB pin serves only shutdown control. To achieve adjustable output, select UCC39411DG4 or alternative boost converters with dedicated FB pins.
What is the function of the RESB pin on the UCC39413DG4, and how is its threshold determined?
The RESB pin on UCC39413DG4 provides an active-low open-drain reset signal that asserts when VOUT falls below 90% of nominal (i.e., 4.32–4.68 V). Its threshold is internally fixed and unadjustable; the output sinks up to 20 mA and requires an external pull-up resistor. This enables direct interfacing with microcontrollers requiring power-on reset during brownout conditions.
Is the UCC39413DG4 RoHS-compliant and qualified for industrial temperature operation?
Yes-UCC39413DG4 is RoHS-compliant (NIPDAU lead finish) and rated for industrial temperature range (0°C to 70°C), as confirmed in TI's Packaging Information document. Its SOIC-8 (D) package carries MSL Level-2-260°C-1 year rating, supporting standard reflow assembly processes without special handling requirements.
UCC39413DG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.1V
- Voltage - Input (Max):
- 3.2V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 60mA
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- 0°C ~ 70°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
UCC39413DG4 FAQ
1.How can I place an order for UCC39413DG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC39413DG4 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 UCC39413DG4 reliable?
The price and inventory of UCC39413DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC39413DG4 is usually 5 days.
3.What payment methods are accepted for UCC39413DG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC39413DG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC39413DG4?
UCC39413DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC39413DG4 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 UCC39413DG4?
For technical support, including UCC39413DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC39413DG4 requirements.
6.How does Aetrix verify that UCC39413DG4 is sourced from the original manufacturer or authorized distributors?
All UCC39413DG4 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 UCC39413DG4 meets industry standards.
7.What is the process for return or replacement of UCC39413DG4?
All UCC39413DG4 units undergo pre-shipment inspection (PSI). If there is an issue with UCC39413DG4, 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 UCC39413DG4 part is unused and in its original packaging.
Return procedure for UCC39413DG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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