component
TX4150A
Public Made by Adomby adom
XDS DC-DC Converters, ESOP-8. Pinout extracted from 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
markdownTX4150A
XDS · DC-DC Converters · ESOP-8
TX4150A from XDS, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CS | input | Output current setting pin. A sense resistor (Rcs) from CS to GND programs the output constant-current limit and is also used by the internal line-drop (cable) compensation network. |
| 2 | BST | passive | Bootstrap capacitor pin for the high-side N-MOSFET gate driver. A 100 nF ceramic capacitor is connected between BST and SW; the internal LDO charges it to approximately 5.3V when the low-side switch is on. |
| 3 | SW | output | Switch node output. Common drain of the integrated high-side and low-side power MOSFETs; connect the external buck inductor here. Absolute maximum voltage is VDD+0.3V. |
| 4 | GND | power_in | Chip ground reference. Must be tied to the system ground plane; also internally connected to the exposed thermal pad (EP). |
| 5 | VDD | power_in | Chip power supply input. Wide operating range 4.5V to 36V (36V absolute max); input over-voltage protection triggers at 33V (Vinovp). Decouple with low-ESR ceramic input capacitance close to the pin. |
| 6 | FB | input | Feedback input. Connect a resistor divider from VOUT so that FB regulates to the internal 0.9V reference (VREF). VFB_OVP output over-voltage threshold is 1.1×VFB. Absolute max 6V. |
| 7 | EN | input | Chip enable input. Driving EN above its threshold turns the converter on; pulling it low places the part in shutdown. Do not leave floating: use a pull-up resistor, or a divider from VIN to program a higher input UVLO threshold. Absolute max 6V. |
| 8 | LED | output | External LED indicator drive output (typ. status/charge indicator in USB-charger applications). Absolute max 6V. |
| EP | EP | power_in | Exposed thermal pad on the bottom of the ESOP-8 package. Internally connected to GND; must be soldered to a PCB ground copper pour for proper thermal performance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XDS |
| Package | ESOP-8 |
| Category | PMIC |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage VDD | VDD | -0.3 | 36 | V | 4 | ||
| Voltage on EN/CS/FB pins | V_MAX | -0.3 | 6 | V | EN/CS/FB | 4 | |
| Output voltage on LED pin | V_MAX | -0.3 | 6 | V | LED | 4 | |
| Voltage on BST pin | V_MAX | -0.3 | 6 | V | BST | 4 | |
| Voltage on SW pin (lower limit) | V_MAX | -0.3 | V | SW; upper limit printed as VDD+0.3 V (formula, not a number) | 4 | ||
| Operating junction temperature | TA | -40 | 125 | ℃ | 4 | ||
| Maximum junction temperature | TJ | 160 | ℃ | 4 | |||
| Storage temperature | T_STG | -65 | 150 | ℃ | 4 | ||
| Soldering temperature | T_TD | 260 | ℃ | 焊接，10秒左右 | 4 | ||
| Start-up minimum input voltage (UVLO rising) | VUVLO_up | 4.4 | V | VDD=12V，TA=25℃ (table header) | 5 | ||
| UVLO turn-off voltage (UVLO falling) | VUVLO_down | 4.3 | V | VDD=12V，TA=25℃ (table header) | 5 | ||
| UVLO hysteresis voltage | VUVLO_hys | 0.3 | V | VDD=12V，TA=25℃ (table header) | 5 | ||
| Quiescent current | IQ | 1 | mA | VFB=1.2V | 5 | ||
| Oscillator frequency | Fosc | 150 | KHz | 5 | |||
| Feedback voltage | VFB | 0.9 | V | 5 | |||
| Maximum duty cycle | D_MAX | 98 | % | 5 | |||
| Minimum on-time | Ton | 100 | ns | 5 | |||
| High-side switch current limit | Hs_Iocl | 3.5 | A | 最小占空比 | 5 | ||
| Low-side switch current limit | Ls_Iocl | 1.2 | A | 5 | |||
| Input overvoltage protection threshold | Vinovp | 33 | V | 5 | |||
| Overtemperature protection threshold | Thsd | 155 | ℃ | 5 | |||
| Thermal shutdown hysteresis | Thsdhys | 15 | ℃ | 5 | |||
| High-side switch on-resistance | RDS(ON)_H | 250 | mΩ | IOUT = 1A，VOUT = 3.3V | 5 | ||
| Low-side switch on-resistance | RDS(ON)_L | 140 | mΩ | IOUT = 1A, VOUT = 3.3V | 5 | ||
| High-side switch leakage current | I_leak_sw | 10 | µA | VEN = 0V, VSW= 0V | 5 |
CAD (KiCad official)
- Symbol:
TX4150A - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
tx4150a-etched.step/tx4150a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tx4150a.step/tx4150a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XDS datasheet (11 pp, sha256
cf6b1936f63a5adb, retrieved 2026-08-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).