component
TD1730
Public Made by Adomby adom
Techcode Semicon AC-DC Controllers & Regulators, TDFN-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "TD1730",
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"version": "0.1.0",
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"package": "TDFN-10-EP(3x3)",
"pin_count": 11,
"category": "Power Management ICs",
"subcategory": "AC-DC Controllers & Regulators",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/28ca493f45eaedb3a85a28010701912b.pdf",
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"source": "Component Ocean /api/assign-pns",
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"status": "no match"
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"mouser": {
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},
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"description": "Open-drain power-good output indicating output voltage status, to be connected to +5V through a pull-high resistor."
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{
"number": "2",
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"description": "Current-limit threshold setting pin that sources 10 uA through a resistor to GND to monitor the low-side MOSFET drain-source voltage drop."
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{
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"name": "EN",
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"description": "Enable input of the PWM controller, enabled above 1.8V and in shutdown below 0.5V with only low leakage current taken from VCC and VIN."
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{
"number": "4",
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"type": "input",
"description": "Output voltage feedback pin connected to the resistive divider that sets the output voltage, also monitored by the POK, UVP and OVP circuits."
},
{
"number": "5",
"name": "RF",
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"description": "Switching frequency setting pin using resistor RRF (Table 1), where pulling to GND selects automatic PFM/PWM mode and pulling high to POK selects forced PWM mode."
},
{
"number": "6",
"name": "LGATE",
"type": "output",
"description": "Low-side MOSFET driver output connected to the low-side MOSFET gate, swinging from GND to VCC."
},
{
"number": "7",
"name": "VCC",
"type": "power_in",
"description": "Control circuitry supply input of +5V (4.5V to 5.5V recommended), decoupled with at least 1uF MLCC to GND."
},
{
"number": "8",
"name": "PHASE",
"type": "bidirectional",
"description": "Junction of the high-side MOSFET source, output inductor and low-side MOSFET drain, serving as the lower supply rail for the UGATE driver."
},
{
"number": "9",
"name": "UGATE",
"type": "output",
"description": "High-side MOSFET driver output connected to the gate of the high-side MOSFET."
},
{
"number": "10",
"name": "BOOT",
"type": "power_in",
"description": "Supply input for the UGATE driver and internal level shifter, connected to an external bootstrap capacitor to drive a logic-level N-channel MOSFET."
},
{
"number": "11",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
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"guards": "pin_guards 0.1: passed",
"guard_notes": [
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],
"pages_sent": 17,
"cost_usd": 0.0952,
"at": "2026-11-07T02:01:06"
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"metadata": {
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"Manufacturer": "Techcode Semicon",
"Package": "TDFN-10-EP(3x3)",
"Category": "Power Management ICs",
"Pins": "11"
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"rows": [
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{
"name": "Regulation Accuracy",
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{
"name": "Regulation Accuracy",
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{
"name": "Regulation Accuracy",
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{
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"unit": "uA",
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"conditions": "FB = 0.7V",
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{
"name": "VCC Input Bias Current",
"symbol": "IVCC",
"kind": "electrical",
"unit": "uA",
"min": null,
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"conditions": "RRF = 470k, TA = 25°C, VIN=8V, VOUT=1.1V, IOUT=10A",
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{
"name": "Switching Frequency",
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"typ": 165,
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"conditions": "RRF = 200k, TA = 25°C, VIN=8V, VOUT=1.1V, IOUT=10A",
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{
"name": "Switching Frequency",
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"typ": 185,
"max": 215,
"conditions": "RRF = 100k, TA = 25°C, VIN=8V, VOUT=1.1V, IOUT=10A",
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{
"name": "Switching Frequency",
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"conditions": "RRF = 39k, TA = 25°C, VIN=8V, VOUT=1.1V, IOUT=10A",
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{
"name": "Minimum On Time",
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"min": 80,
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"conditions": "",
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{
"name": "Minimum Off Time",
"symbol": "TOFF(MIN)",
"kind": "timing",
"unit": "ns",
"min": 350,
"typ": 450,
"max": 550,
"conditions": "VFB = 0.65V, VPHASE = -0.1V, OCSET = OPEN",
"source_page": 5,
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{
"name": "Internal Soft-Start Time",
"symbol": "TSS",
"kind": "timing",
"unit": "ms",
"min": 0.7,
"typ": 1,
"max": 1.3,
"conditions": "EN High to VOUT Regulation (95%)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "UGATE Pull-Up Resistance",
"symbol": "",
"kind": "electrical",
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"min": null,
"typ": 1.5,
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"conditions": "BOOT-UGATE = 0.5V",
"source_page": 5,
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},
{
"name": "UGATE Sink Resistance",
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{
"name": "LGATE Pull-Up Resistance",
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{
"name": "LGATE Sink Resistance",
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},
{
"name": "Bootstrap Forward Voltage",
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"kind": "electrical",
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"conditions": "VVCC - VBOOT-GND, IF = 10mA",
"source_page": 5,
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},
{
"name": "Bootstrap Reverse Leakage",
"symbol": "IR",
"kind": "electrical",
"unit": "uA",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "VBOOT-GND = 30V, VPHASE = 25V, VVCC = 5V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VCC POR Threshold Rising",
"symbol": "VVCC THR",
"kind": "electrical",
"unit": "V",
"min": 4.2,
"typ": 4.35,
"max": 4.45,
"conditions": "VSS POR Threshold",
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{
"name": "EN Voltage Threshold Enable",
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"conditions": "Enable",
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{
"name": "EN Voltage Threshold Shutdown",
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{
"name": "EN Leakage",
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"conditions": "EN = 0V",
"source_page": 6,
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},
{
"name": "RF Setting Threshold Forced PWM Mode",
"symbol": "",
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"unit": "V",
"min": 1.8,
"typ": null,
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"conditions": "Forced PWM Mode",
"source_page": 6,
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},
{
"name": "RF Setting Threshold PFM/PWM Auto Skip Mode",
"symbol": "",
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"unit": "V",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "PFM/PWM Auto Skip Mode",
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},
{
"name": "POK Threshold Rising",
"symbol": "VPOK",
"kind": "electrical",
"unit": "%",
"min": 87,
"typ": 90,
"max": 93,
"conditions": "POK in from Lower (POK Goes High)",
"source_page": 6,
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{
"name": "POK Threshold Falling",
"symbol": "VPOK",
"kind": "electrical",
"unit": "%",
"min": 120,
"typ": 125,
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"conditions": "POK out from Normal (POK Goes Low)",
"source_page": 6,
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},
{
"name": "POK Leakage Current",
"symbol": "IPOK",
"kind": "electrical",
"unit": "uA",
"min": null,
"typ": 0.1,
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"conditions": "VPOK = 5V",
"source_page": 6,
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},
{
"name": "POK Sink Current",
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"unit": "mA",
"min": 2.5,
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"conditions": "VPOK = 0.5V",
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},
{
"name": "POK Enable Delay Time",
"symbol": "",
"kind": "timing",
"unit": "ms",
"min": 1.4,
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"conditions": "EN High to POK High",
"source_page": 6,
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},
{
"name": "IOCSET OCP Threshold",
"symbol": "IOCSET",
"kind": "electrical",
"unit": "uA",
"min": 9,
"typ": 10,
"max": 11,
"conditions": "IOCSET Sourcing",
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},
{
"name": "Current-Limit Threshold Setting Range",
"symbol": "VROCSET",
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"min": 0.24,
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"conditions": "VOCSET-GND Voltage, Over All Temperature",
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},
{
"name": "Over Current-Limit Voltage",
"symbol": "VOCSET-GND-VGND-PHASE",
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"min": -10,
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"conditions": "VOCSET-GND=60mV",
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},
{
"name": "Zero Crossing Comparator Off Voltage",
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"conditions": "EN=3.3V",
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{
"name": "UVP Threshold",
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"kind": "electrical",
"unit": "%",
"min": 60,
"typ": 70,
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"conditions": "",
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},
{
"name": "UVP Enable Delay",
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{
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{
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{
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{
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{
"name": "Junction Temperature",
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"min": -40,
"typ": null,
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"conditions": "",
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{
"name": "VCC Supply Voltage to GND",
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"typ": null,
"max": 7,
"conditions": "VCC to GND",
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},
{
"name": "BOOT Supply Voltage to GND",
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"unit": "V",
"min": -0.3,
"typ": null,
"max": 35,
"conditions": "BOOT to GND",
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},
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