2 layers58.5 × 52.1 mm
Nextion USB serial downloader
rohamid/Nextion_USB_serial_downloader
A PCB for powering and downloading Nextion HMI directly using USB to Serial
56 parts
Overview
The TPS54232D is a DC DC Converter made by Texas Instruments in a SOIC-8 package with 8 pins. -40℃~+150℃@(TJ) 1 1MHz 2A 3.5V~28V 800mV~25V 85uA Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TPS54233DRG4, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 13,410 are in stock at JLCPCB (part C52653). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
13- Supply, least
- 3.5 V · VIN, recommended operating min · p. 6
- Supply, most
- 28 V · VIN, recommended operating max · p. 6
- Supply, absolute maximum
- 30 V · VIN, absolute max · p. 5
- Junction, hottest
- 150 °C · Operating junction temperature max · p. 5
- Takes working
- 85 µA · VIN, typical quiescent current, non switching, VSENSE = 0.85 V · p. 7
- Takes asleep
- 1 µA · VIN, typical shutdown current, EN = 0 V, VIN = 12 V, –40°C to 85°C · p. 7
- Gives
- 2 A · Continuous output current max · p. 10
- Current limit
- 4.9 A · Typical current limit threshold, VIN = 12 V · p. 7
- Feedback reference
- 800 mV · Typical voltage reference · p. 7
- Switches at
- 1 MHz · Typical switching frequency, VIN = 12 V, 25°C · p. 7
- Junction to air (D)
- 116.3 K/W · Junction-to-ambient thermal resistance · p. 6
- Junction to board (D)
- 57.1 K/W · Junction-to-board thermal resistance · p. 6
- Junction to case (D)
- 53.7 K/W · Junction-to-case (top) thermal resistance · p. 6
What it is and has
11- Topology
- Step-down converter with integrated high-side n-channel MOSFET · p. 10
- Output voltage
- Adjustable down to 0.8 V · p. 1
- Switching frequency
- Fixed 1 MHz · p. 1
- Slow start
- Adjustable to limit inrush current · p. 1
- UVLO
- Programmable threshold · p. 1
- Protection
- Overvoltage transient protection · p. 1
- Package
- 8-pin SOIC · p. 1
- Converter topology
- Nonsynchronous buck · p. 1
- Adjustable output
- Down to 0.8 V · p. 1
- Light-load operation
- Pulse-skipping Eco-mode · p. 13
- Protection
- Thermal shutdown · p. 13
Around it
6- cap 0.1-μF
- between BOOT and PH; Ceramic bootstrap capacitor; X7R or X5R dielectric recommended. · p. 11
- cap 10 μF
- between VIN and GND; Recommended input decoupling; X5R or X7R ceramic, rated above maximum input voltage and placed close to VIN. · p. 15
- cap 100 μ F
- between VIN and GND; Typical electrolytic bulk capacitor when the input supply is more than a few inches from the converter. · p. 24
- ind 3.3 μH
- between PH and VOUT; Output inductor selected for the design example. · p. 16
- cap 22 μF
- between VOUT and GND; C6 in the design example; ceramic, rated at 10 V. · p. 17
- diode B220A
- between PH and GND; External catch diode selected for the design example; cathode to PH and anode to GND. · p. 20
Specifications
49| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Input Voltage | VIN | min -0.3 · max 30 V | 5 |
| Input Voltage | EN | min -0.3 · max 6 V | 5 |
| Input Voltage | BOOT | max 38 V | 5 |
| Input Voltage | VSENSE | min -0.3 · max 3 V | 5 |
| Input Voltage | COMP | min -0.3 · max 3 V | 5 |
| Input Voltage | SS | min -0.3 · max 3 V | 5 |
| Output Voltage | BOOT-PH | min 8 · max 8 V | 5 |
| Output Voltage | PH | min -0.6 · max 30 V | 5 |
| Output Voltage | PH (10 ns transient from ground to negative peak) | max -5 V | 5 |
| Source Current | EN | max 100 uA | 5 |
| Source Current | BOOT | max 100 mA | 5 |
| Source Current | VSENSE | max 10 uA | 5 |
| Source Current | PH | max 6 A | 5 |
| Sink Current | VIN | max 6 A | 5 |
| Sink Current | COMP | max 100 uA | 5 |
| Sink Current | SS | max 200 uA | 5 |
| Operating Junction Temperature, TJ TJ | min -40 · max 150 °C | 5 | |
| Storage temperature range Tstg | min -65 · max 150 °C | 5 | |
| Electrostatic discharge V(ESD) | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins | min -2 · max 2 kV | 5 |
| Electrostatic discharge V(ESD) | Charged device model (CDM), per JEDEC specification JESD22-C101, all pins | min -500 · max 500 V | 5 |
| Operating Input Voltage on (VIN pin) | min 3.5 · max 28 V | 6 | |
| Operating junction temperature TJ | min -40 · max 150 °C | 6 | |
| Junction-to-ambient thermal resistance RθJA | TPS54232, D, 8 PINS | typ 116.3 °C/W | 6 |
| Junction-to-case (top) thermal resistance RθJC(top) | TPS54232, D, 8 PINS | typ 53.7 °C/W | 6 |
| Junction-to-board thermal resistance RθJB | TPS54232, D, 8 PINS | typ 57.1 °C/W | 6 |
| Junction-to-top characterization parameter ψJT | TPS54232, D, 8 PINS | typ 12.9 °C/W | 6 |
| Junction-to-board characterization parameter ψJB | TPS54232, D, 8 PINS | typ 56.5 °C/W | 6 |
| Internal undervoltage lockout threshold | Rising and Falling | max 3.5 V | 7 |
| Shutdown supply current | EN = 0V, VIN = 12V, –40°C to 85°C | typ 1 · max 4 uA | 7 |
| Operating – non switching supply current | VSENSE = 0.85 V | typ 85 · max 120 uA | 7 |
| Enable threshold | Rising and Falling | typ 1.25 · max 1.35 V | 7 |
| Input current | Enable threshold – 50 mV | typ -1 uA | 7 |
| Input current | Enable threshold + 50 mV | typ -4 uA | 7 |
| Voltage reference | min 0.772 · typ 0.8 · max 0.828 V | 7 | |
| On resistance | BOOT-PH = 3 V, VIN = 3.5 V | typ 115 · max 200 mΩ | 7 |
| On resistance | BOOT-PH = 6 V, VIN = 12 V | typ 80 · max 150 mΩ | 7 |
| Error amplifier transconductance (gm) gm | –2 uA < I(COMP) < 2 uA, V(COMP) = 1 V | typ 92 umhos | 7 |
| Error amplifier DC gain (1) | VSENSE = 0.8 V; specified by design | typ 800 V/V | 7 |
| Error amplifier unity gain bandwidth (1) | 5 pF capacitance from COMP to GND pins; specified by design | typ 2.7 MHz | 7 |
| Error amplifier source/sink current | V(COMP) = 1.0 V, 100 mV overdrive; source/sink magnitude ±7 uA | typ 7 uA | 7 |
| Switch current to COMP transconductance | VIN = 12 V | typ 10 A/V | 7 |
| Pulse-skipping Eco-Mode switch current threshold | typ 100 mA | 7 | |
| Current limit threshold | VIN = 12 V | min 2.3 · typ 4.9 A | 7 |
| Thermal Shutdown | typ 165 °C | 7 | |
| Charge current | V(SS) = 0.4 V | typ 2 uA | 7 |
| SS to VSENSE matching | V(SS) = 0.4 V | typ 10 mV | 7 |
| TPS54232 Switching Frequency | VIN = 12V, 25°C | min 800 · typ 1000 · max 1200 kHz | 7 |
| Minimum controllable on time | VIN = 12V, 25°C | typ 110 · max 135 ns | 7 |
| Maximum controllable duty ratio (1) | BOOT-PH = 6 V; specified by design | min 90 · typ 93 % | 7 |
Pins, by the datasheet
8- 1 BOOT
- Requires a 0.1-uF bootstrap capacitor to PH; insufficient capacitor voltage forces the high-side MOSFET off until refreshed. · p. 4
- 2 VIN
- Input supply voltage, 3.5 V to 28 V. · p. 4
- 3 EN
- Pull below 1.25 V to disable; float to enable; two resistors are recommended to program input undervoltage lockout. · p. 4
- 4 SS
- An external capacitor sets the output rise time. · p. 4
- 5 VSENSE
- Inverting node of the gm error amplifier. · p. 4
- 6 COMP
- Error amplifier output and PWM comparator input; connect frequency compensation components here. · p. 4
- 7 GND
- Ground. · p. 4
- 8 PH
- Source of the internal high-side power MOSFET. · p. 4
Ordering codes, by the datasheet
6- TPS54232D
- SOIC (D) | 8 · 75 units, TUBE · p. 27
- TPS54232D.A
- SOIC (D) | 8 · 75 units, TUBE · p. 27
- TPS54232DR
- SOIC (D) | 8 · 2500 units, LARGE T&R · p. 27
- TPS54232DR.A
- SOIC (D) | 8 · 2500 units, LARGE T&R · p. 27
- TPS54232DRG4
- SOIC (D) | 8 · 2500 units, LARGE T&R · p. 27
- TPS54232DRG4.A
- SOIC (D) | 8 · 2500 units, LARGE T&R · p. 27
Parameters
21- Current Limit
- 4.9A
- Features
- Adjustable soft-start
- Frequency - Switching
- 1MHz
- Function
- Step-down type
- Junction Temperature(Max)
- 150℃
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+150℃@(TJ)
- Output Current
- 2A
- Output Type
- Adjustable
- Output Voltage
- 800mV~25V
- Quiescent Current
- 85uA
- Reference Voltage
- 800mV
- Standby Current
- 1uA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- No
- Thermal Resistance(Junction to Ambient)
- 116.3℃/W
- Thermal Resistance(Junction to Board)
- 57.1℃/W
- Thermal Resistance(Junction to Case)
- 53.7℃/W
- Topology
- Buck
- Voltage - Supply
- 3.5V~28V
- Voltage - Supply(Absolute Max)
- 30V
Order codes
2- TPS54232DRLCSC C52653
- TPS54232DLCSC C84819
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | BOOT | Unspecified |
| 2 | VIN | Unspecified |
| 3 | EN | Unspecified |
| 4 | SS | Unspecified |
| 5 | VSENSE | Unspecified |
| 6 | COMP | Unspecified |
| 7 | GND | Unspecified |
| 8 | PH | Unspecified |
Open-source boards using it
All 2- 2 layers20.3 × 34.8 mm
L0 ESP32
Luos-io/luos_engine
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.
26 parts546MIT
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Is there a KiCad symbol and footprint for the TPS54232D?
Yes. The symbol is EasyEDA_Cloud:TPS54233DRG4 and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TPS54232D?
SOIC-8, with 8 pins. Its footprint is drawn on this page.
Where is the TPS54232D datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the TPS54232D?
JLCPCB lists it as part C52653, with 13,410 in stock; the sellers' links on this page open their listings.
What can replace the TPS54232D?
Parts like it in the library: the XL1509-5.0E1 by XLSEMI, the XL1509-ADJE1 by XLSEMI, the XL1410E1 by XLSEMI and the TPS54231D by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the TPS54232D?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
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