4 layers108 × 63 mm
Overview
The ST1S06PUR is a DC DC Converter made by STMicroelectronics in a DFN-6(3x3) package with 7 pins. -30℃~+85℃@(TJ) 1 1.5A 1.5MHz 2.7V~6V 800mV~5.22V Adjustable Buck Buck Built-in Yes DFN-6(3x3) DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ST1S06PUR, from EasyEDA) and its footprint (EasyEDA_Cloud:DFN-6_L3.0-W3.0-P0.95-LS3.1-TL-EP, from EasyEDA), ready for a KiCad board. 335 are in stock at JLCPCB (part C93500). 4 open-source boards in 4 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
12- Supply, least
- 2.7 V · VIN_SW / VIN_A, recommended operating minimum · p. 1
- Supply, most
- 6 V · VIN_SW / VIN_A, recommended operating maximum · p. 1
- Supply, absolute maximum
- 7 V · VIN_SW, absolute maximum · p. 5
- Junction, hottest
- 150 °C · junction temperature, absolute maximum · p. 5
- Takes working
- 1.5 mA · quiescent current, VINH > 1.2 V, max · p. 6
- Takes asleep
- 1 µA · shutdown current, VINH < 0.4 V, TJ = -30 to 85 °C, max · p. 6
- Gives
- 1.5 A · output current capability, VI = 2.7 to 5.5 V · p. 6
- Current limit
- 2.3 A · switching current limitation, typical · p. 6
- Feedback reference
- 800 mV · feedback voltage, typical · p. 6
- Switches at
- 1.5 MHz · PWM switching frequency, VFB = 0.8 V, typical · p. 6
- Junction to air (DFN6D (3 x 3 mm))
- 55 K/W · junction-ambient thermal resistance · p. 5
- Junction to case (DFN6D (3 x 3 mm))
- 10 K/W · junction-case thermal resistance · p. 5
What it is and has
7- Synchronous rectification
- Yes · p. 1
- Inhibit function
- Yes · p. 1
- Soft start
- Internal · p. 1
- DC output voltage tolerance
- 2% · p. 1
- Efficiency
- > 90 %, typical · p. 1
- Operating junction temperature
- -30 °C to 125 °C · p. 1
- Package
- DFN6D (3x3 mm), exposed pad · p. 1
Specifications
34| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Positive power supply voltage VIN_SW | min -0.3 · max 7 V | 5 | |
| Positive power supply voltage VIN_A | min -0.3 · max 7 V | 5 | |
| Inhibit voltage VINH | Maximum: VI + 0.3 V | min -0.3 V | 5 |
| Max. voltage of output pin SWITCH voltage | min -0.3 · max 7 V | 5 | |
| Feedback voltage VFB/VO | min -0.3 · max 2.5 V | 5 | |
| Output voltage VO | for VO > 1.6 V | min -0.3 · max 6 V | 5 |
| Max junction temperature TJ | min -40 · max 150 °C | 5 | |
| Storage temperature range TSTG | min -65 · max 150 °C | 5 | |
| Lead temperature (soldering) TLEAD | 10 sec | max 260 °C | 5 |
| Thermal resistance junction-ambient RthJA | DFN6D (3 x 3 mm) | typ 55 °C/W | 5 |
| Thermal resistance junction-case RthJC | DFN6D (3 x 3 mm) | typ 10 °C/W | 5 |
| Feedback voltage FB | min 784 · typ 800 · max 816 mV | 6 | |
| VFB pin bias current IFB | max 600 nA | 6 | |
| Minimum input voltage VI | IO = 10mA to 1.5A | min 2.7 V | 6 |
| Quiescent current IQ | VINH > 1.2V | max 1.5 mA | 6 |
| Quiescent current IQ | VINH < 0.4V, TJ = -30°C to 85°C | max 1 uA | 6 |
| Output current IO | VI = 2.7 to 5.5V Note 1 | min 1.5 A | 6 |
| Inhibit threshold VINH | Device ON, VI = 2.7 to 5.5V | min 1.3 V | 6 |
| Inhibit threshold VINH | Device ON, VI = 2.7 to 5V | min 1.2 V | 6 |
| Inhibit threshold VINH | Device OFF | max 0.4 V | 6 |
| Inhibit pin current IINH | max 2 uA | 6 | |
| Reference line regulation %VO/ΔVI | VI = 2.7V to 5.5V Note 1 | typ 0.2 · max 0.3 %VO/ΔVI | 6 |
| Reference load regulation %VO/ΔIO | IO = 10mA to 1.5A Note 1 | typ 0.2 · max 0.3 %VO/ΔIO | 6 |
| PWM switching frequency PWMfS | VFB = 0.8V | min 1.2 · typ 1.5 · max 1.8 MHz | 6 |
| Maximum duty cycle DMAX | min 80 · typ 87 % | 6 | |
| NMOS switch on resistance RDSON-N | ISW = 750 mA | typ 0.12 Ω | 6 |
| PMOS switch on resistance RDSON-P | ISW = 750 mA | typ 0.15 Ω | 6 |
| Switching current limitation ISWL | Note 1 | typ 2.3 A | 6 |
| Efficiency Note 1 ν | IO = 10mA to 100mA, VO = 3.3V | min 65 % | 6 |
| Efficiency Note 1 ν | IO = 100mA to 1.5A, VO = 3.3V | min 85 · typ 90 % | 6 |
| Thermal shutdown TSHDN | min 130 · typ 150 °C | 6 | |
| Thermal shutdown hysteresis THYS | typ 15 °C | 6 | |
| Load transient response %VO/ΔIO | IO = 100mA to 750mA, TJ = 25°C tR = tF ≥ 200ns, Note 1 | min -5 · max 5 %VO | 6 |
| Short circuit removal response %VO/ΔIO | IO = 10mA to IO = short, TJ = 25°C Note 1 | min -10 · max 10 %VO | 6 |
Pins, by the datasheet
7- 1 FB/VO
- Feedback voltage for the adjustable version. · p. 4
- 2 GND
- System ground. · p. 4
- 3 SW
- Switching pin. · p. 4
- 4 VIN_SW
- Power supply for the mosfet switch. · p. 4
- 5 VIN_A
- Power supply for analogic circuit. · p. 4
- 6 VINH
- Inhibit pin to turn off the device. · p. 4
- EP Exposed pad
- Exposed pad to be connected to GND. · p. 4
Ordering codes, by the datasheet
4- ST1S06PUR
- DFN6D (3 x 3 mm) · ST1S06; marking ST1S06; adjustable output · p. 1
- ST1S06APUR
- DFN6D (3 x 3 mm) · ST1S06A; marking ST1S06A · p. 1
- ST1S06PU12R
- DFN6D (3 x 3 mm) · ST1S06XX12; marking 1S0612 · p. 1
- ST1S06PU33R
- DFN6D (3 x 3 mm) · ST1S06XX33; marking 1S0633 · p. 1
Parameters
20- Current Limit
- 2.3A
- Features
- Cycle-by-cycle current limiting
- Frequency - Switching
- 1.5MHz
- Function
- Step-down type
- Junction Temperature(Max)
- 150℃
- Number of Outputs
- 1
- Operating Temperature
- -30℃~+85℃@(TJ)
- Output Current
- 1.5A
- Output Type
- Adjustable
- Output Voltage
- 800mV~5.22V
- Quiescent Current
- 1.5mA
- Reference Voltage
- 800mV
- Standby Current
- 1uA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- Yes
- Thermal Resistance(Junction to Ambient)
- 55℃/W
- Thermal Resistance(Junction to Case)
- 10℃/W
- Topology
- Buck
- Voltage - Supply
- 2.7V~6V
- Voltage - Supply(Absolute Max)
- 7V
Order codes
1- ST1S06PURLCSC C93500
Pinout
7| Pin | Name | Type |
|---|---|---|
| 1 | VO/VFB | Unspecified |
| 2 | GND | Unspecified |
| 3 | SW | Unspecified |
| 4 | VIN_SW | Unspecified |
| 5 | VIN_A | Unspecified |
| 6 | INH | Unspecified |
| 7 | EP | Unspecified |
Open-source boards using it
All 4- 4 layers60.8 × 64.8 mm
- 4 layers115.5 × 14.4 mm
- 4 layers62 × 49.8 mm
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Is there a KiCad symbol and footprint for the ST1S06PUR?
Yes. The symbol is EasyEDA_Cloud:ST1S06PUR and the footprint EasyEDA_Cloud:DFN-6_L3.0-W3.0-P0.95-LS3.1-TL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ST1S06PUR?
DFN-6(3x3), with 7 pins. Its footprint is drawn on this page.
Where is the ST1S06PUR datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the ST1S06PUR?
JLCPCB lists it as part C93500, with 335 in stock; the sellers' links on this page open their listings.
What can replace the ST1S06PUR?
Parts like it in the library: the ST1S06PU12R by STMicroelectronics and the ST1S06PU33R by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ST1S06PUR?
4 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
2
ST1S06PU12R
DFN-6(3x3)-30℃~+85℃@(TJ) 1 1.2V 1.5A 1.5MHz 2.7V~6V Buck Buck Built-in Fixed Yes DFN-6(3x3) DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersST1S06PU33R
DFN-6(3x3)-30℃~+125℃@(TJ) 1 1.5A 1.5MHz 1.5mA 2.7V~6V 3.3V Buck Buck Built-in Yes DFN-6(3x3) DC-DC Converters ROHSSTMicroelectronicsDC-DC Converters