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Microchip Technology TC1313-ZS0EMFTR
- Part No.:
- TC1313-ZS0EMFTR
- Manufacturer:
- Microchip Technology
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TC1313-ZS0EMFTR.pdf
- Description:
- IC REG DL BUCK/LINEAR SYNC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,671
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Product details
Overview
TC1313-ZS0EMFTR 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) VOUT1 and fixed (1.5 V, 1.8 V, 2.5 V, 3.3 V) VOUT2, with 2.0 MHz PWM switching, 57 µA typical total quiescent current, and -40°C to +125°C operating junction temperature - deployed in portable medical instruments and USB-powered devices.
For engineers reviewing the TC1313-ZS0EMFTR datasheet, TC1313-ZS0EMFTR pinout, TC1313-ZS0EMFTR application, or TC1313-ZS0EMFTR equivalent, key selection criteria include independent SHDN1/SHDN2 control, 137 mV LDO dropout at 200 mA, internal compensation for both regulators, UVLO (2.55 V typ), and thermal/short-circuit protection across both outputs.
Technical Context
The TC1313-ZS0EMFTR implements a current-mode synchronous buck regulator with automatic PWM-to-PFM mode transition: fixed 2.0 MHz operation under heavy load (>80 mA), dropping to ultra-low-quiescent PFM mode (<30 mA threshold) for battery longevity. Its integrated P- and N-channel MOSFETs feature 450 mΩ RDS(on) each, enabling >90% efficiency at 500 mA output.
The auxiliary LDO operates with no external compensation required, accepts input from the same VIN source as the buck stage, and maintains ±0.3% output voltage tolerance over load and temperature. Its 1 µF ceramic output capacitor requirement minimizes board area while delivering 300 mA with 25 ppm/°C temperature coefficient and 62 dB PSRR at 100 Hz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output 1 Type | Synchronous buck regulator: 500 mA continuous, adjustable (0.8–4.5 V) or fixed (0.8/1.2/1.5/1.8/2.5/3.3 V) output |
| Output 2 Type | Low-dropout linear regulator: 300 mA continuous, fixed-only outputs (1.5/1.8/2.5/3.3 V) |
| Quiescent Current | 57 µA typical total device IQ enables multi-day battery life in always-on portable systems |
| Switching Frequency | 2.0 MHz fixed PWM frequency allows use of small 4.7 µH inductors and compact 4.7 µF input/output capacitors |
| LDO Dropout Voltage | 137 mV typical at 200 mA load permits operation with minimal VIN–VOUT2 differential, reducing heat dissipation |
| Protection Features | Integrated UVLO (2.55 V typ), thermal shutdown (165°C), overcurrent, and short-circuit protection on both outputs |
| Operating Temperature | -40°C to +125°C junction range supports industrial and automotive-adjacent portable applications |
Pinout & Package
TC1313-ZS0EMFTR is housed in a 3×3 mm, 10-lead DFN package with exposed thermal pad (EP), optimized for high thermal performance on 4-layer PCBs (θJA = 41°C/W). The EP must be soldered to AGND for reliable operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SHDN2) | LDO shutdown control input | Active-high logic input (>45% VIN); enables/disables 300 mA LDO independently of buck stage |
| 2 (VIN2) | LDO input supply | Accepts same input source as VIN1; requires low-ESR input capacitor to suppress ripple feeding LDO |
| 3 (VOUT2) | LDO regulated output | Delivers fixed 1.5/1.8/2.5/3.3 V; requires ≥1 µF ceramic capacitor to AGND for stability and transient response |
| 4 (NC) | No-connect terminal | Must remain unconnected; no internal circuitry attached |
| 5 (AGND) | Analog ground reference | Separate low-noise ground return for feedback and control circuitry; must be tied to AGND plane, not PGND |
| 6 (VFB/VOUT1) | Buck feedback or output sense | For adjustable versions: connect voltage divider midpoint; for fixed versions: direct connection to VOUT1 node |
| 7 (SHDN1) | Buck shutdown control input | Active-high logic input (>45% VIN); enables/disables 500 mA buck regulator independently of LDO |
| 8 (VIN1) | Buck input supply | 2.7–5.5 V input; must be routed with minimal trace length and low-inductance path to PGND |
| 9 (LX) | Buck switch node | High-slew-rate, high-current node connecting to inductor; requires shortest possible layout to minimize EMI |
| 10 (PGND) | Power ground return | High-current return path for buck switching loop; must be isolated from AGND except at single-point star ground |
Key Features
| Feature | Design Value |
|---|---|
| Independent dual shutdown control | SHDN1 and SHDN2 allow sequenced power-up/down of core (buck) and I/O (LDO) rails without external logic |
| Internally compensated regulators | Eliminates need for external compensation components on either output, reducing BOM count and layout complexity |
| Automatic PWM-to-PFM mode transition | Seamlessly shifts between high-efficiency 2.0 MHz PWM and ultra-low-IQ PFM below ~30 mA load - no control signals needed |
| Low-noise LDO with high PSRR | 62 dB PSRR at 100 Hz and 1.8 µV/√Hz output noise support noise-sensitive analog/RF subsystems |
| Robust protection suite | UVLO prevents operation below safe input voltage; thermal shutdown (165°C) and cycle-by-cycle current limiting protect against fault conditions |
Applications
| Portable Medical Instrumentation | USB-Powered Peripheral |
|---|---|
Use Scenario: Handheld glucose meter or pulse oximeter powered by single Li-ion cell (2.7–4.2 V). IC Role / Device Role / Timing Role: TC1313-ZS0EMFTR supplies 1.8 V to microcontroller core (buck) and 3.3 V to sensor interface/LCD driver (LDO). Use Value: 137 mV LDO dropout enables stable 3.3 V rail down to 3.43 V input; 57 µA total IQ extends battery runtime beyond 72 hours in standby. |
Use Scenario: Bus-powered USB audio interface requiring clean 1.2 V digital core and 3.3 V analog front-end rails. IC Role / Device Role / Timing Role: TC1313-ZS0EMFTR generates 1.2 V (buck) and 3.3 V (LDO) from 5 V USB input with independent enable control. Use Value: 2.0 MHz switching avoids AM radio band interference; 62 dB LDO PSRR rejects USB data-induced ripple on analog supply. |
| Industrial Handheld Terminal | Ultra-Compact PDAs |
Use Scenario: Ruggedized barcode scanner operating across -20°C to +70°C ambient with wide-input 3.0–5.5 V supply. IC Role / Device Role / Timing Role: TC1313-ZS0EMFTR delivers 1.5 V to ARM Cortex-M processor and 2.5 V to image sensor interface. Use Value: -40°C to +125°C junction rating ensures reliability; ±0.3% output tolerance maintains timing margin for high-speed peripherals. |
Use Scenario: Legacy PDA with tight board space budget needing dual-rail power from single-cell lithium polymer battery. IC Role / Device Role / Timing Role: TC1313-ZS0EMFTR provides 0.8 V (adjustable buck) for CPU core and 1.8 V (fixed LDO) for memory I/O. Use Value: 3×3 mm DFN footprint saves >40% area vs. discrete buck+LDO solution; internal compensation removes 4 external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65023BRSBR | Triple-output PMIC (2 buck + 1 LDO); higher integration but larger 4×4 mm QFN package and 85 µA IQ | Supports complex sequencing and I2C configuration; suited for multi-rail SoC platforms, not simple dual-rail needs | Select when system requires >2 rails or programmable voltage sequencing; avoid for cost- and size-constrained dual-rail designs |
| RT8059ZSP | Dual buck-only regulator (no LDO); 2.5 MHz switching, 300 mA per channel, 30 µA IQ per channel | Lacks linear regulation - unsuitable for noise-sensitive analog rails requiring low ripple and high PSRR | Prefer only if both rails tolerate switching noise and require identical topology; not a functional substitute for TC1313-ZS0EMFTR's buck+LDO architecture |
Compared with TPS65023BRSBR and RT8059ZSP, TC1313-ZS0EMFTR uniquely balances ultra-low IQ, integrated buck+LDO architecture, and minimal 3×3 mm footprint - making it optimal for space-constrained, battery-operated dual-rail systems where analog rail cleanliness and standby efficiency are critical.
Availability
TC1313-ZS0EMFTR is available at Aetrix Electronics and suitable for portable medical instrumentation, USB-powered peripherals, and industrial handheld terminals requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TC1313-ZS0EMFTR 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 U.S.-based semiconductor company specializing in microcontrollers, analog, and power management solutions, with a focus on reliability, longevity, and embedded system integration.
The TC1313 product line was designed specifically for portable and battery-powered applications requiring dual, independently controlled voltage rails with minimal external components and ultra-low quiescent current.
FAQ
What output voltage options does TC1313-ZS0EMFTR support?
TC1313-ZS0EMFTR supports adjustable VOUT1 from 0.8 V to 4.5 V (via external resistor divider on VFB pin) and fixed VOUT1 options of 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. VOUT2 is fixed-only at 1.5 V, 1.8 V, 2.5 V, or 3.3 V. The -ZS0EMFTR variant is factory-configured for 1.2 V (VOUT1) and 3.3 V (VOUT2) outputs.
Does TC1313-ZS0EMFTR require external compensation components?
No - TC1313-ZS0EMFTR features fully internal compensation for both the buck regulator and LDO. This eliminates the need for external compensation capacitors or resistors, reducing bill-of-materials count and simplifying layout. Fixed-output versions integrate the feedback divider; adjustable versions only require two external resistors on the VFB pin.
How does TC1313-ZS0EMFTR manage efficiency across varying load conditions?
TC1313-ZS0EMFTR automatically transitions between fixed-frequency 2.0 MHz PWM mode (for >80 mA loads, >90% efficiency) and ultra-low-IQ PFM mode (for <30 mA loads, ~38 µA buck IQ). This dual-mode operation maximizes battery life in portable applications with dynamic load profiles, such as intermittent sensor sampling or display backlight control.
What is the recommended output capacitor for the LDO (VOUT2) of TC1313-ZS0EMFTR?
The LDO output (VOUT2) of TC1313-ZS0EMFTR requires a minimum 1.0 µF ceramic capacitor placed directly between VOUT2 and AGND. X5R or X7R dielectrics are recommended for stable capacitance over temperature and bias. Larger values (e.g., 2.2 µF) improve transient response but are not required for stability.
Can TC1313-ZS0EMFTR operate with separate input supplies for VIN1 and VIN2?
No - TC1313-ZS0EMFTR requires VIN1 and VIN2 to be connected together on the PCB. The datasheet explicitly states "VIN1 and VIN2 are supplied by the same input source" (Note 8, DS21974B). Using separate supplies may cause undefined behavior, including improper UVLO activation or regulator instability.
TC1313-ZS0EMFTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 2MHz
- Voltage/Current - Output 1:
- Adj, 500mA
- Voltage/Current - Output 2:
- 1.5V, 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-ZS0EMFTR FAQ
1.How can I place an order for TC1313-ZS0EMFTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1313-ZS0EMFTR 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-ZS0EMFTR reliable?
The price and inventory of TC1313-ZS0EMFTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1313-ZS0EMFTR is usually 5 days.
3.What payment methods are accepted for TC1313-ZS0EMFTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1313-ZS0EMFTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1313-ZS0EMFTR?
TC1313-ZS0EMFTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1313-ZS0EMFTR 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-ZS0EMFTR?
For technical support, including TC1313-ZS0EMFTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1313-ZS0EMFTR requirements.
6.How does Aetrix verify that TC1313-ZS0EMFTR is sourced from the original manufacturer or authorized distributors?
All TC1313-ZS0EMFTR 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-ZS0EMFTR meets industry standards.
7.What is the process for return or replacement of TC1313-ZS0EMFTR?
All TC1313-ZS0EMFTR units undergo pre-shipment inspection (PSI). If there is an issue with TC1313-ZS0EMFTR, 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-ZS0EMFTR part is unused and in its original packaging.
Return procedure for TC1313-ZS0EMFTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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