My Inquiry
My Account
Microchip Technology TC1313-ZG0EMF
- Part No.:
- TC1313-ZG0EMF
- Manufacturer:
- Microchip Technology
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TC1313-ZG0EMF.pdf
- Description:
- IC REG DL BUCK/LINEAR SYNC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,577
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TC1313-ZG0EMF 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 two independent, tightly regulated voltage rails-adjustable or fixed (0.8–4.5 V for buck; 1.5–3.3 V for LDO)-with total quiescent current of 57 µA typical, enabling ultra-low-power operation in battery-powered portable electronics.
For engineers reviewing the TC1313-ZG0EMF datasheet, TC1313-ZG0EMF pinout, TC1313-ZG0EMF application, or TC1313-ZG0EMF equivalent, key selection considerations include independent shutdown control per rail, automatic PWM-to-PFM mode transition for efficiency optimization, 2.0 MHz fixed-frequency switching, 137 mV typical LDO dropout at 200 mA, and -40°C to +125°C junction temperature rating.
Technical Context
The TC1313-ZG0EMF implements a current-mode synchronous buck regulator with integrated P- 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 reduce quiescent current to 38 µA. Its LDO section uses a PMOS pass device with 137 mV typical dropout at 200 mA and supports ceramic output capacitors as small as 1 µF.
Both regulators feature internal compensation, undervoltage lockout (UVLO = 2.55 V nominal, 200 mV hysteresis), overtemperature shutdown (165°C, 10°C hysteresis), and short-circuit protection. The buck output (VOUT1) is sensed via VFB/VOUT1 pin for adjustable configurations or directly connected for fixed outputs; the LDO output (VOUT2) is fixed-voltage only and requires no external feedback network.
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 >100-hour standby in coin-cell–powered devices |
| Switching Frequency | 2.0 MHz fixed (1.6–2.4 MHz) in PWM mode; enables use of compact 4.7 µH inductors and 4.7 µF input/output capacitors |
| LDO Dropout Voltage | 137 mV typical @ 200 mA; allows efficient regulation from low VIN–VOUT differentials (e.g., 3.6 V → 3.3 V) |
| Operating Temperature | -40°C to +125°C junction range; qualified for industrial and extended-temperature portable applications |
| Protection Features | UVLO, thermal shutdown (165°C), overcurrent on both outputs, and short-circuit protection on VOUT1 and VOUT2 |
Pinout & Package
TC1313-ZG0EMF is housed in a 3×3 mm, 10-pin 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 proper thermal dissipation and noise control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SHDN2 | LDO shutdown control input | Active-high logic input (>45% VIN); enables/disables 300 mA LDO independently of buck regulator |
| 2 VIN2 | LDO input supply | Accepts 2.7–5.5 V; must be tied closely to VIN1 to minimize noise coupling between rails |
| 3 VOUT2 | LDO regulated output | Fixed 1.5/1.8/2.5/3.3 V; requires ≥1 µF ceramic capacitor to AGND for stability |
| 4 NC | No-connect terminal | Not internally bonded; must remain unconnected on PCB |
| 5 AGND | Analog ground reference | Reference for feedback and control circuitry; separate from PGND to reduce switching noise injection |
| 6 VFB/VOUT1 | Buck feedback or output sense | Connect to voltage divider midpoint for adjustable VOUT1; direct connection for fixed-output variants |
| 7 SHDN1 | Buck shutdown control input | Active-high logic input (>45% VIN); enables/disables 500 mA buck regulator independently |
| 8 VIN1 | Buck input supply | Accepts 2.7–5.5 V; shared with VIN2 but routed separately for layout flexibility |
| 9 LX | Buck switch node | High-slew-rate node driving external inductor; requires shortest possible trace to minimize EMI and losses |
| 10 PGND | Power ground return | Return path for high-current buck switching loop; must be isolated from AGND except at single-point tie |
Key Features
| Feature | Design Value |
|---|---|
| Independent shutdown control | SHDN1 and SHDN2 pins allow sequenced power-up/down of buck and LDO rails without external logic |
| Automatic PWM-to-PFM transition | Seamless mode switching at ~30–80 mA load eliminates need for manual control or external enable sequencing |
| Internally compensated design | Eliminates external compensation components for both regulators, reducing BOM count and board area |
| Low-noise LDO output | 1.8 µV/√Hz output noise and 62 dB PSRR at 100 Hz enable clean analog/RF supply generation |
| Thermal and fault protection | Integrated overtemperature (165°C), UVLO, and output short-circuit protection prevent system-level damage |
Applications
| Cellular Phone Power Management | USB-Powered Portable Instrument |
|---|---|
Use Scenario: Dual-rail power for baseband processor (1.2 V core) and RF transceiver (2.8 V bias) from single 3.7 V Li-ion cell. IC Role / Device Role / Timing Role: TC1313-ZG0EMF provides tightly regulated, independently controlled 1.2 V buck and 2.8 V LDO outputs with <100 µs wake-up time. Use Value: Enables simultaneous low-noise analog supply and high-efficiency digital core rail while maintaining <60 µA total system standby current. |
Use Scenario: Compact medical sensor module powered via USB 5 V, requiring 3.3 V microcontroller rail and 1.8 V ADC reference rail. IC Role / Device Role / Timing Role: TC1313-ZG0EMF delivers 3.3 V (buck) and 1.8 V (LDO) with <±0.3% output tolerance and <2.5 mV ripple. Use Value: Eliminates need for two discrete regulators and associated passives, reducing solution size by >40% vs. discrete implementation. |
| Handheld Medical Diagnostic Device | Ultra-Thin Tablet SoC Power |
Use Scenario: Battery-operated ultrasound probe requiring stable 1.5 V analog front-end supply and 1.2 V digital logic rail. IC Role / Device Role / Timing Role: TC1313-ZG0EMF supplies 1.5 V LDO (low noise, 137 mV dropout) and 1.2 V buck (90%+ efficiency at 300 mA). Use Value: Achieves >12-hour runtime on 1200 mAh cell due to 57 µA total IQ and adaptive PFM mode during idle periods. |
Use Scenario: Thin client tablet using 4.2 V battery to power 0.85 V SoC core and 3.3 V I/O interface simultaneously. IC Role / Device Role / Timing Role: TC1313-ZG0EMF generates 0.85 V (adjustable buck) and 3.3 V (fixed LDO) with independent enable sequencing. Use Value: Supports dynamic voltage scaling (DVS) for SoC core while maintaining clean, ripple-free I/O supply for display and USB interfaces. |
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 (2 buck + 1 LDO), higher IQ (100 µA), 2.25 MHz switching, QFN-24 package | Supports three-rail systems; larger footprint and higher cost; lacks independent LDO shutdown | Choose when third regulated rail is required and board space permits larger package |
| RT8059ZSP | Dual buck (no LDO), 600 mA/600 mA, 3 MHz, WDFN-10, no PFM mode, higher IQ (120 µA) | Higher switching frequency enables smaller magnetics but sacrifices light-load efficiency and analog rail cleanliness | Prefer when both rails demand high-current switching regulation and LDO noise immunity is not critical |
Compared with TPS65023BRSBR and RT8059ZSP, TC1313-ZG0EMF uniquely balances ultra-low quiescent current, integrated LDO noise suppression, and minimal 10-pin DFN footprint-making it optimal for space-constrained, battery-sensitive dual-rail designs where one rail demands low-noise linearity and the other high-efficiency switching.
Availability
TC1313-ZG0EMF is available at Aetrix Electronics and suitable for cellular phones, USB-powered portable instruments, and handheld medical diagnostic devices requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for TC1313-ZG0EMF 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, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with high-reliability semiconductor products.
The TC1313-ZG0EMF belongs to Microchip's Power Management IC family, designed specifically for space- and power-constrained portable electronics needing dual, independently controllable voltage rails with minimal external components.
FAQ
What output voltage options does the TC1313-ZG0EMF support for its buck and LDO regulators?
The TC1313-ZG0EMF buck regulator supports adjustable output from 0.8 V to 4.5 V (via external resistor divider on VFB/VOUT1) or fixed outputs of 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. The LDO output is fixed-only at 1.5 V, 1.8 V, 2.5 V, or 3.3 V-no adjustable option is available for VOUT2. The specific output configuration of TC1313-ZG0EMF is factory-set and cannot be altered post-manufacture.
How does the TC1313-ZG0EMF manage efficiency across varying load conditions?
The TC1313-ZG0EMF uses automatic PWM-to-PFM mode transition: it operates in fixed-frequency 2.0 MHz PWM mode above ~80 mA load for high efficiency (>90% typical) and low ripple, then seamlessly shifts to PFM mode below ~30 mA to reduce quiescent current to 38 µA (buck) and 44 µA (LDO). This preserves battery life in standby without requiring external mode-control circuitry.
Can the TC1313-ZG0EMF operate with separate input sources for VIN1 and VIN2?
No-the TC1313-ZG0EMF datasheet explicitly states that VIN1 and VIN2 "are supplied by the same input source" (Note 8, DS21974B-page 5). Routing separate supplies risks violating absolute maximum ratings and may cause improper UVLO behavior or regulator instability. Both inputs must be tied together with short, low-inductance traces.
What is the recommended output capacitor for the LDO section of the TC1313-ZG0EMF?
The TC1313-ZG0EMF LDO (VOUT2) requires a minimum 1 µF ceramic capacitor connected between VOUT2 and AGND. The datasheet confirms stability with X5R/X7R dielectrics and emphasizes low-ESR performance. Larger values (e.g., 2.2 µF) improve transient response but are not required for basic regulation. Avoid tantalum or aluminum electrolytic capacitors due to ESR and reliability concerns.
Does the TC1313-ZG0EMF provide power-good or reset signaling for system monitoring?
No-the TC1313-ZG0EMF does not include dedicated power-good (PGOOD) or reset output pins. It offers only independent SHDN1/SHDN2 enable inputs and relies on external supervision circuits or host MCU GPIO monitoring of VOUT1/VOUT2 for sequencing and fault detection. No internal reset generator or voltage-monitoring comparator is integrated.
TC1313-ZG0EMF 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:
- Adj, 500mA
- Voltage/Current - Output 2:
- 2.7V, 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-ZG0EMF FAQ
1.How can I place an order for TC1313-ZG0EMF through Aetrix?
Please submit a Request for Quotation (RFQ) for TC1313-ZG0EMF 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-ZG0EMF reliable?
The price and inventory of TC1313-ZG0EMF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC1313-ZG0EMF is usually 5 days.
3.What payment methods are accepted for TC1313-ZG0EMF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC1313-ZG0EMF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC1313-ZG0EMF?
TC1313-ZG0EMF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC1313-ZG0EMF 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-ZG0EMF?
For technical support, including TC1313-ZG0EMF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC1313-ZG0EMF requirements.
6.How does Aetrix verify that TC1313-ZG0EMF is sourced from the original manufacturer or authorized distributors?
All TC1313-ZG0EMF 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-ZG0EMF meets industry standards.
7.What is the process for return or replacement of TC1313-ZG0EMF?
All TC1313-ZG0EMF units undergo pre-shipment inspection (PSI). If there is an issue with TC1313-ZG0EMF, 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-ZG0EMF part is unused and in its original packaging.
Return procedure for TC1313-ZG0EMF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TC1313-ZG0EMF 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…
