My Inquiry
My Account
Microchip Technology TC1304-VP0EMF
- Part No.:
- TC1304-VP0EMF
- Manufacturer:
- Microchip Technology
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TC1304-VP0EMF.pdf
- Description:
- IC REG DL BUCK/LINEAR SYNC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,232
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TC1304-VP0EMF from Microchip Technology is a dual-output power management IC integrating a 500 mA synchronous buck regulator and a 300 mA low-dropout linear regulator (LDO), with sequenced startup/shutdown, 300 ms power-good delay, 65 µA typical quiescent current, and operation from -40°C to +125°C. It delivers tightly regulated core and bias voltages for portable processors in USB-powered devices.
For engineers reviewing the TC1304-VP0EMF datasheet, TC1304-VP0EMF pinout, TC1304-VP0EMF application, or TC1304-VP0EMF equivalent, key selection criteria include output sequencing control, dual-regulator efficiency trade-offs, PG monitoring of both outputs, thermal performance in DFN package, and compatibility with ceramic output capacitors.
Technical Context
The TC1304-VP0EMF implements independent shutdown logic that triggers controlled ramp-up and ramp-down of VOUT1 (buck) and VOUT2 (LDO) in fixed order-VOUT2 first on startup, VOUT1 first on shutdown-ensuring safe power sequencing for microprocessors. Its buck stage operates at 2.0 MHz PWM under heavy load and transitions automatically to PFM mode at light loads to maintain ultra-low IQ.
The LDO uses internal compensation and requires only a 1 µF ceramic output capacitor; its typical dropout voltage is 137 mV at 200 mA. The open-drain PG output monitors regulation of both VOUT1 and VOUT2 simultaneously with 94% threshold hysteresis and 300 ms active timeout, directly supporting processor reset timing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Buck Output Current | 500 mA max - supports core voltage rails for ARM Cortex-M or similar MCUs |
| LDO Output Current | 300 mA max - powers I/O, memory, or analog peripherals requiring low-noise bias |
| Quiescent Current | 65 µA typical - enables >1-year battery life in always-on portable medical instruments |
| Switching Frequency | 2.0 MHz fixed - allows use of compact 4.7 µH inductors and minimizes EMI filtering area |
| Power-Good Delay | 300 ms active timeout - meets Intel/ARM reset assertion timing for embedded processors |
| Operating Temp Range | -40°C to +125°C - qualified for automotive cabin and industrial edge computing environments |
| LDO Dropout Voltage | 137 mV @ 200 mA - enables high-efficiency operation even with low VIN–VOUT differentials |
Pinout & Package
TC1304-VP0EMF is housed in a thermally enhanced 10-pin 3×3 mm DFN package with exposed pad (EP) connected to AGND. The package supports high-power-density layouts and achieves θJA = 41°C/W on a 4-layer board with thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SHDN | Active-low global shutdown input | Initiates controlled sequencing: VOUT2 ramps first on enable, VOUT1 ramps first on disable |
| 2 - VIN2 | LDO input supply | Accepts 2.7–5.5 V; must be tied closely to VIN1 to minimize noise coupling into LDO path |
| 3 - VOUT2 | LDO regulated output | Delivers fixed 3.3 V (per VP0 suffix); requires ≥1 µF ceramic capacitor to AGND |
| 4 - PG | Open-drain power-good indicator | Asserts low when both VOUT1 and VOUT2 are within ±6% of regulation; 300 ms timeout ensures robust reset hold |
| 5 - AGND | Analog ground reference | Must be connected to quiet analog ground plane; separate from PGND to avoid switching noise injection |
| 6 - PGND | Power ground return | Carries high-frequency buck switch current; routed separately from AGND and tied at single point |
| 7 - LX | Buck switch node | Connects to external 4.7 µH inductor and 4.7 µF output capacitor; requires tight loop layout |
| 8 - VIN1 | Buck input supply | Accepts 2.7–5.5 V; shared with VIN2 via short trace per layout guidelines |
| 9 - VFB1/VOUT1 | Buck feedback or output | Configured as VOUT1 (fixed 1.8 V per VP0 suffix); no external divider needed |
| 10 - EP | Exposed thermal pad | Internally connected to AGND; must be soldered to PCB thermal plane for thermal reliability |
Key Features
| Feature | Design Value |
|---|---|
| Sequenced startup/shutdown | Guarantees VOUT2 powers up before VOUT1 and shuts down after VOUT1-prevents backfeeding and latch-up in multi-rail systems |
| Automatic PWM-to-PFM transition | Maintains >85% efficiency at 1 mA load without manual mode control or external circuitry |
| Both regulators internally compensated | Eliminates need for external compensation networks-reduces BOM count and layout complexity |
| Open-drain PG with dual-output monitoring | Single reset signal confirms stable operation of both rails-reduces system-level monitoring overhead |
| Integrated UVLO, overtemperature, and short-circuit protection | Self-protects across operating range without external fault-handling logic |
Applications
| USB-Powered Portable Instrument | Industrial Edge Sensor Node |
|---|---|
Use Scenario: Handheld blood glucose meter powered from USB 5 V with ARM-based MCU and analog front-end. IC Role / Device Role / Timing Role: TC1304-VP0EMF supplies 1.8 V core (VOUT1) and 3.3 V I/O (VOUT2) with sequenced ramp-up to meet MCU boot timing, while PG asserts reset until both rails stabilize. Use Value: Enables single-input, dual-rail power architecture with <100 µA total quiescent draw-extending battery life during standby. | Use Scenario: Wireless temperature sensor node deployed in factory automation with wide ambient temperature swings. IC Role / Device Role / Timing Role: Delivers regulated 1.8 V and 3.3 V from 3.6 V Li-ion battery; sequenced shutdown prevents data corruption during brownout recovery. Use Value: -40°C to +125°C operation and 137 mV LDO dropout ensure reliable rail generation across full battery discharge curve and environmental range. |
| Medical Wearable Monitor | Embedded Automotive Infotainment Module |
Use Scenario: ECG patch with ultra-low-power SoC and analog signal chain requiring clean, low-noise bias. IC Role / Device Role / Timing Role: LDO (VOUT2) powers analog sensors with 1.8 µV/√Hz noise floor; buck (VOUT1) powers digital core with 90%+ efficiency at 200 mA. Use Value: Dual-output integration reduces board area by >40% vs. discrete regulators while meeting IEC 60601 EMI limits. | Use Scenario: In-dash display module with microprocessor, touch controller, and backlight driver sharing a 5 V supply rail. IC Role / Device Role / Timing Role: Provides isolated 1.8 V core and 3.3 V interface rails; PG signal synchronizes system reset with power stabilization across all subsystems. Use Value: 300 ms PG delay and dual-rail monitoring eliminate need for external supervisor IC-reducing BOM cost and failure points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65023BRSBR | Triple-output (2 buck + 1 LDO), 2.25 MHz switching, 85 µA IQ, QFN-24 package | Supports additional rail; larger footprint and higher IQ limit battery runtime | Select when third regulated output is required and board space permits larger package |
| RT8059ZSP | Dual buck-only (no integrated LDO), 1.5 MHz, 60 µA IQ, DFN-10 same size | Lacks low-noise LDO-requires external LDO for analog rails, increasing component count | Select when both rails are digital and lowest possible IQ is critical; add external LDO if analog supply needed |
Compared with TPS65023BRSBR and RT8059ZSP, TC1304-VP0EMF uniquely combines sequenced dual-rail control, integrated LDO for noise-sensitive circuits, and minimal 10-pin DFN footprint-making it optimal for space-constrained, battery-powered systems needing guaranteed power sequencing and mixed-signal rail integrity.
Availability
TC1304-VP0EMF is available at Aetrix Electronics and suitable for USB-powered portable instruments, industrial edge sensor nodes, medical wearable monitors, and embedded automotive infotainment modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TC1304-VP0EMF 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
Microchip Technology is a leading provider of microcontrollers, analog components, and power management ICs, serving industrial, automotive, and consumer markets with high-reliability semiconductor solutions.
The TC1303/TC1304 product line was designed specifically for portable and battery-operated applications requiring dual regulated supplies with sequencing, low quiescent current, and robust thermal performance in compact packages.
FAQ
What output voltages does the TC1304-VP0EMF provide?
The TC1304-VP0EMF provides fixed 1.8 V on VOUT1 (buck) and fixed 3.3 V on VOUT2 (LDO), as indicated by the "VP0" suffix in the part number. These values are factory-trimmed and require no external feedback resistors-simplifying design and improving accuracy over temperature and load.
How does the power-good (PG) function work on the TC1304-VP0EMF?
The TC1304-VP0EMF features an open-drain PG output that monitors both VOUT1 and VOUT2 simultaneously. It asserts low when either output falls below 94% of its nominal voltage and remains asserted for a guaranteed 300 ms timeout period-providing a robust reset signal for attached processors.
Does the TC1304-VP0EMF support independent enable control for each regulator?
No-the TC1304-VP0EMF uses a single SHDN pin to initiate sequenced enable/disable of both regulators. Unlike the TC1303 variants, it does not offer independent shutdown inputs; instead, it guarantees VOUT2 powers up before VOUT1 and shuts down after VOUT1 to prevent backfeeding.
What is the minimum input voltage required for the TC1304-VP0EMF to regulate both outputs?
The TC1304-VP0EMF requires VIN ≥ 2.7 V minimum, but actual minimum depends on output voltages and dropout: for 1.8 V/3.3 V outputs, VIN must exceed 3.3 V + 0.137 V = 3.437 V to maintain LDO regulation at full load-ensuring stable operation across battery discharge profiles.
Can the TC1304-VP0EMF operate reliably at 125°C junction temperature?
Yes-the TC1304-VP0EMF is fully specified for continuous operation from -40°C to +125°C junction temperature. Its thermal resistance (θJA = 41°C/W in DFN) and integrated overtemperature protection ensure safe operation in sealed enclosures or high-ambient industrial environments when properly mounted with thermal vias.
TC1304-VP0EMF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Topology:
- Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 2MHz
- Voltage/Current - Output 1:
- 1.2V, 500mA
- Voltage/Current - Output 2:
- 1.8V, 300mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- Yes
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
TC1304-VP0EMF FAQ
1.How can I place an order for TC1304-VP0EMF through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1304-VP0EMF 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 TC1304-VP0EMF reliable?
The price and inventory of TC1304-VP0EMF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1304-VP0EMF is usually 5 days.
3.What payment methods are accepted for TC1304-VP0EMF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1304-VP0EMF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1304-VP0EMF?
TC1304-VP0EMF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1304-VP0EMF 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 TC1304-VP0EMF?
For technical support, including TC1304-VP0EMF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1304-VP0EMF requirements.
6.How does Aetrix verify that TC1304-VP0EMF is sourced from the original manufacturer or authorized distributors?
All TC1304-VP0EMF 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 TC1304-VP0EMF meets industry standards.
7.What is the process for return or replacement of TC1304-VP0EMF?
All TC1304-VP0EMF units undergo pre-shipment inspection (PSI). If there is an issue with TC1304-VP0EMF, 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 TC1304-VP0EMF part is unused and in its original packaging.
Return procedure for TC1304-VP0EMF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TC1304-VP0EMF Tags
-
TPS6521905RHBR
Texas Instruments
-
MIC3385YHL-TR
Microchip Technology
-
A4402ELPTR-T
Allegro MicroSystems
-
LM26480SQ-AA/NOPB
Texas Instruments
-
A4402KLPTR-T
Allegro MicroSystems
-
BD71847AMWV-E2
ROHM Semiconductor
-
ADP5040ACPZ-1-R7
Analog Devices Inc.
-
LT3048IDC#TRPBF
Analog Devices Inc.
-
ADP5037ACPZ-R7
Analog Devices Inc.
-
XRP7714ILB-F
MaxLinear, Inc.
-
LTC3260EDE#TRPBF
Analog Devices Inc.
-
LTC3260EMSE#PBF
Analog Devices Inc.
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
