component
TC1044SEOA713
Public Made by Adomby adom
Microchip Tech DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTC1044SEOA713
Microchip Tech · DC-DC Converters · SOIC-8
TC1044SEOA713 from Microchip Tech, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | BOOST | input | Frequency boost pin: connecting it to V+ raises the oscillator frequency from 10kHz to 45kHz, and it is left open (or GND) for the nominal 10kHz. |
| 2 | CAP+ | passive | Charge-pump capacitor positive terminal, to which the + terminal of polarized pump capacitor C1 is connected. |
| 3 | GND | power_in | Ground; the + terminal of reservoir capacitor C2 connects here, and LV is tied to it only for supply voltages below 3.5V. |
| 4 | CAP- | passive | Charge-pump capacitor negative terminal, connected to the negative side of pump capacitor C1. |
| 5 | VOUT | power_out | Negative output voltage (-V+ for a 1.5V to 12V input) with the reservoir capacitor C2 connected to it. |
| 6 | LV | input | Low-voltage pin: connect to GND to disable the internal regulator for supplies below 3.5V, and leave open for supplies above 3.5V. |
| 7 | OSC | input | Oscillator pin: an external capacitor to ground (with pin 1 open) lowers the 10kHz frequency, or an external clock can drive it through a 1kΩ series resistor. |
| 8 | V+ | power_in | Positive supply input, 1.5V to 12V operating range, 13V absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-8 |
| Category | Power Management ICs |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Current | I+ | 80 | 160 | µA | TA = +25°C, V+ = 5V, RL = ∞ | 2 | |
| Supply Current | I+ | 180 | µA | -40°C < TA < +85°C, RL = ∞ | 2 | ||
| Supply Current (Boost Pin = V+) | I+ | 350 | µA | -40°C < TA < +85°C, Boost Pin = V+ | 2 | ||
| Supply Voltage Range, High | V+H | 3 | 12 | V | Min ≤ TA ≤ Max, RL = 10 kΩ, LV Open | 2 | |
| Supply Voltage Range, Low | V+L | 1.5 | 3.5 | V | Min ≤ TA ≤ Max, RL = 10 kΩ, LV to GND | 2 | |
| Output Source Resistance | ROUT | 60 | 100 | Ω | IOUT = 20mA, TA = +25°C | 2 | |
| Output Source Resistance | ROUT | 70 | 120 | Ω | IOUT = 20mA, -40°C ≤ TA ≤ +85°C | 2 | |
| Power Efficiency | PEFF | 96 | 98 | % | RL = 5 kΩ; Boost Pin Open | 2 | |
| Power Efficiency | PEFF | 95 | 97 | % | TMIN < TA < TMAX; Boost Pin Open | 2 | |
| Voltage Conversion Efficiency | VOUT EFF | 99 | 99.9 | % | RL = ∞ | 2 | |
| Oscillator Frequency | FOSC | 10 | kHz | Pin 7 open; Pin 1 open or GND | 2 | ||
| Oscillator Frequency (Boost) | FOSC | 45 | kHz | Boost Pin = V+ | 2 | ||
| Power Efficiency (Boost) | PEFF | 88 | % | Boost Pin = V+ | 2 | ||
| Oscillator Impedance | ZOSC | 1 | MΩ | V+ = 2V | 2 | ||
| Oscillator Impedance | ZOSC | 100 | kΩ | V+ = 5V | 2 | ||
| Supply Voltage | 13 | V | 2 | ||||
| Current Into LV | 20 | µA | V+ > 3.5V (Note 1) | 2 | |||
| Lead Temperature (Soldering) | 300 | °C | 10 sec | 2 | |||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Operating Temperature Range (E Suffix) | -40 | 85 | °C | E Suffix | 2 |
CAD (KiCad official)
- Symbol:
TC1044SEOA713 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tc1044seoa713-etched.step/tc1044seoa713-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tc1044seoa713.step/tc1044seoa713.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (11 pp, sha256
6fde2d62ef18f2a8, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).