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Microchip Technology TC1313-PP0EMF
- Part No.:
- TC1313-PP0EMF
- Manufacturer:
- Microchip Technology
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TC1313-PP0EMF.pdf
- Description:
- IC REG DL BUCK/LINEAR SYNC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,903
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Product details
Overview
TC1313-PP0EMF 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) in a single 10-pin DFN package. It delivers adjustable (0.8–4.5 V) or fixed (e.g., 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V) buck output and fixed LDO outputs (1.5 V, 1.8 V, 2.5 V, 3.3 V), with total quiescent current of 57 µA typical and operating junction temperature range of –40°C to +125°C. It is engineered for battery-powered portable electronics requiring tightly regulated dual-rail supplies.
For engineers reviewing the TC1313-PP0EMF datasheet, TC1313-PP0EMF pinout, TC1313-PP0EMF application, or TC1313-PP0EMF equivalent, key selection considerations include independent shutdown control per rail, automatic PWM-to-PFM mode transition for ultra-low-light-load efficiency, 2.0 MHz fixed-frequency switching, 137 mV typical LDO dropout at 200 mA, and internal compensation eliminating external loop components.
Technical Context
The TC1313-PP0EMF implements a current-mode synchronous buck regulator with integrated P-channel and N-channel MOSFETs (RDS(on) = 450 mΩ each), operating at 2.0 MHz (1.6–2.4 MHz range) under heavy load and transitioning automatically to pulse-frequency modulation (PFM) mode below ~30 mA load to maintain 38 µA typical quiescent current. Its LDO section uses a PMOS pass device with 137 mV typical dropout voltage at 200 mA and supports ceramic output capacitors as small as 1 µF.
Both regulators feature independent logic-level shutdown inputs (SHDN1/SHDN2), undervoltage lockout (UVLO = 2.55 V nominal with 200 mV hysteresis), overtemperature protection (165°C trip with 10°C hysteresis), and short-circuit protection. The device shares VIN1 and VIN2 inputs and requires tight board-level routing between them to minimize noise coupling and ensure stable operation across –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Buck Output Current | 500 mA maximum - supports processor core rails with high transient demand without external current boosting |
| LDO Output Current | 300 mA maximum - powers auxiliary analog or I/O rails with minimal external components |
| Total Quiescent Current | 57 µA typical - enables multi-week battery life in always-on portable devices |
| Buck Switching Frequency | 2.0 MHz fixed (1.6–2.4 MHz) - allows use of compact 4.7 µH inductors and reduces EMI filtering burden |
| LDO Dropout Voltage | 137 mV typical @ 200 mA - minimizes power loss when input margin is constrained (e.g., Li-ion 3.0–4.2 V) |
| Operating Junction Temp | –40°C to +125°C - qualified for automotive cabin and industrial edge applications without derating |
| UVLO Threshold | 2.55 V ±0.15 V - prevents erratic startup during brown-out conditions in battery-fed systems |
Pinout & Package
TC1313-PP0EMF is housed in a 3×3 mm, 10-pin DFN package with exposed thermal pad (EP), optimized for high-power-density portable designs. The EP must be soldered to AGND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SHDN2 (Pin 1) | LDO shutdown control input | Active-high logic input (>45% VIN); enables/disables LDO independently - supports dynamic power sequencing |
| VIN2 (Pin 2) | LDO input supply | Accepts same input source as VIN1; requires low-impedance connection to minimize ripple coupling into LDO output |
| VOUT2 (Pin 3) | LDO regulated output | Delivers fixed 1.5/1.8/2.5/3.3 V; stable with ≥1 µF ceramic capacitor - eliminates need for bulk electrolytic |
| NC (Pin 4) | No-connect terminal | Not internally bonded; must remain unconnected - no routing or copper fill required |
| AGND (Pin 5) | Analog reference ground | Separate ground return for feedback and bias circuitry; must be tied to quiet analog ground plane, not PGND |
| VFB/VOUT1 (Pin 6) | Buck feedback or output sense | Configurable: for adjustable versions, connects to resistor divider; for fixed versions, directly ties to VOUT1 node |
| SHDN1 (Pin 7) | Buck shutdown control input | Active-high logic input (>45% VIN); enables/disables buck stage independently - enables rail-specific power gating |
| VIN1 (Pin 8) | Buck input supply | Primary input for switching regulator; must be routed with low-inductance path to input capacitor and shared with VIN2 |
| LX (Pin 9) | Switch node | High-slew-rate switching node connecting to inductor; requires shortest possible trace to minimize EMI and voltage spikes |
| PGND (Pin 10) | Power ground return | High-current return path for buck switch; must be isolated from AGND except at single-point star connection |
Key Features
| Feature | Design Value |
|---|---|
| Independent shutdown per regulator | Enables precise power sequencing and dynamic rail disable - critical for low-power sleep modes in handhelds |
| Automatic PWM-to-PFM mode transition | Eliminates manual mode control; maintains regulation down to µA loads while holding IQ < 38 µA for buck stage |
| Internally compensated buck loop | Removes need for external compensation network - reduces BOM count and layout sensitivity in space-constrained PCBs |
| Low-noise LDO with 1 µF ceramic support | Enables clean analog/RF supply generation without large tantalum capacitors - improves reliability and saves board area |
| Integrated UVLO, thermal, and overcurrent protection | Provides fault resilience without external monitoring circuitry - simplifies system-level safety compliance |
Applications
| Cellular Phones | USB-Powered Devices |
|---|---|
Use Scenario: Dual-rail power for application processor (core voltage) and RF transceiver (bias voltage) in slim smartphone form factors. IC Role / Device Role / Timing Role: TC1313-PP0EMF provides 1.2 V/500 mA buck output for CPU core and 3.3 V/300 mA LDO output for RF front-end, with independent enable control. Use Value: Reduces component count by replacing two discrete regulators; 2.0 MHz switching enables sub-2 mm² inductor footprint and meets stringent EMI limits. |
Use Scenario: Powering USB-C peripheral hubs with integrated controller, Type-C PD negotiation IC, and display interface logic. IC Role / Device Role / Timing Role: TC1313-PP0EMF generates 1.8 V/500 mA for USB controller logic and 3.3 V/300 mA for level-shifting buffers and PHY termination. Use Value: Single-chip solution eliminates need for separate DC/DC and LDO ICs; 57 µA total IQ extends battery runtime during USB suspend states. |
| Portable Medical Instruments | Handheld PDAs |
Use Scenario: Powering precision analog front-end (AFE), microcontroller, and LCD backlight driver in battery-operated glucose meters or pulse oximeters. IC Role / Device Role / Timing Role: TC1313-PP0EMF delivers 2.5 V/300 mA LDO output for AFE reference and 1.5 V/500 mA buck output for MCU core, both with tight load regulation. Use Value: Low 1.8 µV/√Hz LDO output noise ensures accurate sensor signal integrity; –40°C to +125°C rating supports sterilization and field deployment. |
Use Scenario: Supplying memory, touchscreen controller, and wireless connectivity (Wi-Fi/BT) subsystems in legacy PDA platforms with tight space budgets. IC Role / Device Role / Timing Role: TC1313-PP0EMF provides 3.3 V/500 mA buck for SDRAM interface and 1.8 V/300 mA LDO for touch controller I/O, with fast wake-up (<100 µs). Use Value: Independent SHDN1/SHDN2 pins allow selective powering of subsystems; 137 mV LDO dropout preserves runtime as battery discharges from 4.2 V to 3.0 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130ARGTR | Single 3-A buck only; no integrated LDO - requires external LDO for second rail | Lacks auxiliary LDO output; increases BOM count and layout complexity for dual-rail systems | Choose when higher buck current (>500 mA) is needed and LDO can be added separately |
| MCP1826-3302E/DB | Standalone 500 mA LDO only; no buck stage - requires external DC/DC for primary rail | Cannot replace TC1313-PP0EMF's integrated buck+LDO functionality; needs companion switching regulator | Choose only for LDO-only upgrades where buck stage remains unchanged |
Compared with TPS62130ARGTR and MCP1826-3302E/DB, TC1313-PP0EMF uniquely integrates both buck and LDO in one die with independent control, reducing PCB area by >30% and eliminating inter-IC timing coordination overhead in dual-rail portable designs.
Availability
TC1313-PP0EMF is available at Aetrix Electronics and suitable for cellular phones, USB-powered devices, and handheld medical instruments requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TC1313-PP0EMF 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 global semiconductor company specializing in microcontrollers, analog, and mixed-signal ICs, with strong focus on embedded control and power management solutions.
The TC1313 product line was designed specifically for space-constrained, battery-powered portable electronics needing highly integrated, low-quiescent dual-rail power conversion with minimal external components.
FAQ
What output voltage options does TC1313-PP0EMF support?
TC1313-PP0EMF supports an adjustable buck output from 0.8 V to 4.5 V via external resistor divider on the VFB pin, plus standard fixed buck voltages including 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. The LDO output is fixed at 1.5 V, 1.8 V, 2.5 V, or 3.3 V depending on the specific variant - TC1313-PP0EMF is configured for 3.3 V LDO output per Microchip's ordering matrix.
How does TC1313-PP0EMF manage efficiency across load ranges?
TC1313-PP0EMF uses automatic mode transition: it operates in fixed-frequency 2.0 MHz PWM mode above ~80 mA load for >90% peak efficiency, then seamlessly shifts to PFM mode below ~30 mA to maintain regulation while drawing only 38 µA typical quiescent current from the buck stage - ensuring optimal efficiency from full load to standby.
Can TC1313-PP0EMF operate with a single input source for both regulators?
Yes - TC1313-PP0EMF is explicitly designed for shared input operation: VIN1 and VIN2 must be connected together with short, low-inductance traces. The datasheet specifies that both inputs are supplied by the same source (e.g., 3.6 V nominal Li-ion), and performance parameters like UVLO and dropout assume this configuration.
What is the minimum output capacitor required for the LDO section of TC1313-PP0EMF?
The LDO output (VOUT2) of TC1313-PP0EMF requires a minimum of 1 µF ceramic capacitor placed close to the pin and AGND. This value is sufficient for stability across all fixed output variants and load conditions up to 300 mA - no additional bulk capacitance is needed, simplifying layout and improving reliability versus electrolytic alternatives.
Does TC1313-PP0EMF include thermal protection, and how does it behave?
Yes - TC1313-PP0EMF incorporates overtemperature protection that triggers at 165°C junction temperature with 10°C hysteresis. When activated, both regulators shut down simultaneously; recovery occurs only after junction temperature falls below 155°C. This behavior is fully specified in DS21974B and applies across the full –40°C to +125°C operating range.
TC1313-PP0EMF 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:
- 1.8V, 500mA
- Voltage/Current - Output 2:
- 1.8V, 300mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
TC1313-PP0EMF FAQ
1.How can I place an order for TC1313-PP0EMF through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1313-PP0EMF 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 TC1313-PP0EMF reliable?
The price and inventory of TC1313-PP0EMF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1313-PP0EMF is usually 5 days.
3.What payment methods are accepted for TC1313-PP0EMF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1313-PP0EMF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1313-PP0EMF?
TC1313-PP0EMF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1313-PP0EMF 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 TC1313-PP0EMF?
For technical support, including TC1313-PP0EMF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1313-PP0EMF requirements.
6.How does Aetrix verify that TC1313-PP0EMF is sourced from the original manufacturer or authorized distributors?
All TC1313-PP0EMF 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 TC1313-PP0EMF meets industry standards.
7.What is the process for return or replacement of TC1313-PP0EMF?
All TC1313-PP0EMF units undergo pre-shipment inspection (PSI). If there is an issue with TC1313-PP0EMF, 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 TC1313-PP0EMF part is unused and in its original packaging.
Return procedure for TC1313-PP0EMF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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