

Overview
The ETA6003Q3Q is a DC DC Converter made by etasolution in a QFN3X3-16 package with 17 pins. -40℃~+85℃ 1 2A 4.2V 4.4V~5.5V 70uA Charging IC Lithium Battery Support Support QFN3X3-16 Battery Management ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ETA6003Q3Q_C5455585, from EasyEDA) and its footprint (EasyEDA_Cloud:TQFN-16_L3.0-W3.0-P0.50-TL-EP1.7, from EasyEDA), ready for a KiCad board. 13,212 are in stock at JLCPCB (part C5455585). 4 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
9- Supply, least
- 4.4 V · IN, recommended operating min · p. 3
- Supply, most
- 5.5 V · IN, recommended operating max · p. 3
- Supply, absolute maximum
- 6 V · IN, BATT absolute max · p. 2
- Works from
- -40 °C · operating temperature min · p. 2
- Works up to
- 85 °C · operating temperature max · p. 2
- Takes working
- 5 mA · IN operating current, switcher enabled and switching, typical · p. 3
- Current limit
- 3.5 A · highside current limit typical · p. 3
- Output
- 4.2 V · battery CV voltage, IBAT = 0 mA, default typical · p. 3
- Switches at
- 3 MHz · switching frequency typical · p. 3
What it is and has
3- Power management
- Switching Li-Ion battery charger with dynamic power-path control and input current limiting · p. 1
- DC-DC efficiency
- Up to 95% · p. 1
- Power path MOSFET
- 50mΩ · p. 1
Around it
5- cap 10 µF
- between IN and GND; Input bypass capacitor. · p. 4
- cap 10 µF
- between IN and PGND; Use the shortest possible trace and place closest to the IC. · p. 4
- ind 1 µH to 2.2 µH
- between SW and SYS; Switching regulator output filter inductor. · p. 4
- res 500Ω
- between ISET1 and GND; Example setting for 2 A AC fast charge current with USB_DET low. · p. 3
- res 2KΩ
- between ISET2 and GND; Example setting for 0.5 A USB charge current with USB_DET high. · p. 3
Specifications
38| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| IN, BATT Voltage | min -0.3 · max 6 V | 2 | |
| Operating Temperature Range | min -40 · max 85 ° C | 2 | |
| Storage Temperature Range | min -55 · max 150 ° C | 2 | |
| INPUT Range | VIN = 5V unless otherwise specified; typical values at TA = 25°C | min 4.4 · max 5.5 V | 3 |
| INPUT UVLO | Rising, Hys=500mV | typ 3.9 V | 3 |
| INPUT Operating Current | Switcher Enable, Switching | typ 5 mA | 3 |
| INPUT Operating Current | Switcher Enable, No Switching | typ 70 uA | 3 |
| BATT to INPUT leakage Current | Input Floating | typ 0 · max 5 uA | 3 |
| Vhold | When VIN drop to Vhold, then reduce DC-DC current limit | typ 4.5 V | 3 |
| VSYSMIN | ISYS=1A, Default | typ 3.6 V | 3 |
| VSYSMAX | typ 4.5 V | 3 | |
| Load Regulation | typ 40 mV/A | 3 | |
| Line Regulation | VIN =4.75 to 5.25V | typ 0.04 %/V | 3 |
| Switching Frequency | typ 3 MHz | 3 | |
| Max duty | min 100 % | 3 | |
| HIGHSIDE MOS RDSON | ISW =500mA | typ 100 mΩ | 3 |
| LOWSIDE MOS RDSON | ISW =500mA | typ 60 mΩ | 3 |
| HIGHSIDE Current limit | typ 3.5 A | 3 | |
| SYS UVLO | Falling, Hys=200mV | typ 2.25 V | 3 |
| Thermal Shutdown | Rising, Hys=30oC | typ 160 oC | 3 |
| BATT TO SYS RDSON | typ 50 mΩ | 3 | |
| Battery CV voltage | IBAT =0mA, default | min 4.16 · typ 4.2 · max 4.24 V | 3 |
| Charger Restart Threshold | From DONE to FastCharge | typ -150 mV | 3 |
| Battery Pre-condition Voltage | VBAT Rising Hys=180mV | typ 2.9 V | 3 |
| Pre-Condition Charge Current | typ 100 mA | 3 | |
| AC Fast Charge Current | RISET1 =500Ω, USB_DET= low; Icharge=1V*1000/RISET1 | typ 2 A | 3 |
| USB Charge Current | RISET2 =2KΩ, USB_DET= high; Icharge=1V*1000/RISET2 | typ 0.5 A | 3 |
| Pre-condition Timer | typ 120 min | 3 | |
| Fast-Charge Timer | typ 960 min | 3 | |
| EOC current | Percent of the fast charge current | typ 10 % | 3 |
| NTC Threshold, Cold | Charger Suspended | typ 76.5 %VIN | 3 |
| NTC Threshold, Hot | Charger Suspended | typ 35 %VIN | 3 |
| NTC Threshold Hysteresis | typ 1.5 %VIN | 4 | |
| NTC Disable Threshold | typ 100 mV | 4 | |
| NTC Input Leakage | typ 0 uA | 4 | |
| ENB, ENPPB Logic Input High | min 1.6 V | 4 | |
| ENB, ENPPB Logic Input Low | max 0.3 V | 4 | |
| STAT Output Low Voltage | ISTATS=10mA | max 0.2 V | 4 |
Pins, by the datasheet
16- 1 SYS
- System voltage and switching regulator output; connect an inductor and capacitor to form the output filter. · p. 4
- 2 IN
- AC adaptor or USB charger input; bypass with a 10 uF capacitor each to GND and PGND. · p. 4
- 3 SW
- Switching regulator node; connect a 1 uH to 2.2 uH inductor to SYS. · p. 4
- 4 SW
- Switching regulator node; connect a 1 uH to 2.2 uH inductor to SYS. · p. 4
- 5 PGND
- Power ground; bypass to IN with a 10 uF capacitor and the shortest possible trace. · p. 4
- 6 ENB
- Active low charging enable; high disables charging while retaining the BATT to SYS power path. · p. 4
- 7 NTC
- Thermistor input. · p. 4
- 8 ENPPB
- Tie to GND to enable the BATT to SYS power path or to BATT to disable it for shipping mode. · p. 4
- 9 STATS
- Charging status indication; open drain output capable of driving 10 mA. · p. 4
- 10 GND
- Analog ground; bypass to IN with a 10 uF capacitor. · p. 4
- 11 ISET1
- Connect a resistor to GND to set AC fast charge current when USB_DET is low. · p. 4
- 12 ISET2
- Connect a resistor to GND to set USB charge current when USB_DET is high. · p. 4
- 13 USB_DET
- Low selects ISET1 for AC fast charging; high selects ISET2 for USB charging; defaults low. · p. 4
- 14 BATT
- Battery pin; connect a battery. · p. 4
- 15 SYS
- System voltage and switching regulator output; connect an inductor and capacitor to form the output filter. · p. 4
- 16 BATT
- Battery pin; connect a battery. · p. 4
Ordering codes, by the datasheet
1- ETA6003Q3Q
- QFN3X3-16 · 5000 pieces per reel · p. 1
Parameters
16- 0V Battery Charge
- Support
- Battery Temperature Detection
- Support
- Charge Current - Max
- 2A
- Charging Saturation Voltage
- 4.2V
- Current Limit
- 3.5A
- Features
- Under-voltage lockout
- Frequency - Switching
- 3MHz
- Number of Cells
- 1
- Operating Temperature
- -40℃~+85℃
- Output Voltage
- 4.2V
- Quiescent Current
- 5mA
- Supply Current (Iq)
- 70uA
- The Chip Type
- Charging IC
- Type of Battery
- Lithium Battery
- Voltage - Supply
- 4.4V~5.5V
- Voltage - Supply(Absolute Max)
- 6V
Order codes
1- ETA6003Q3QLCSC C5455585
Pinout
17| Pin | Name | Type |
|---|---|---|
| 1 | SYS | Unspecified |
| 2 | IN | Unspecified |
| 3 | SW | Unspecified |
| 4 | SW | Unspecified |
| 5 | PGND | Unspecified |
| 6 | ENB | Unspecified |
| 7 | NTC | Unspecified |
| 8 | ENPPB | Unspecified |
| 9 | STAT | Unspecified |
| 10 | GND | Unspecified |
| 11 | ISET1 | Unspecified |
| 12 | ISET2 | Unspecified |
| 13 | USB_DET | Unspecified |
| 14 | BATT | Unspecified |
| 15 | SYS | Unspecified |
| 16 | BATT | Unspecified |
| 17 | EP | Unspecified |
Open-source boards using it
All 4- 2 layers44.9 × 71.1 mm

- 4 layers55 × 55 mm

- 4 layers71.9 × 20 mm

HD800-wireless
AarnimM22/HD800-wireless
dual CS43131 + nrf5340 DAC/AMP for turning Sennheiser HD800 into wireless
121 parts - 2 layers36 × 65 mm

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Is there a KiCad symbol and footprint for the ETA6003Q3Q?
Yes. The symbol is EasyEDA_Cloud:ETA6003Q3Q_C5455585 and the footprint EasyEDA_Cloud:TQFN-16_L3.0-W3.0-P0.50-TL-EP1.7, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ETA6003Q3Q?
QFN3X3-16, with 17 pins. Its footprint is drawn on this page.
Where is the ETA6003Q3Q datasheet?
etasolution publishes it: the Datasheet link on this page opens it.
Where can I order the ETA6003Q3Q?
JLCPCB lists it as part C5455585, with 13,212 in stock; the sellers' links on this page open their listings.
What can replace the ETA6003Q3Q?
Parts like it in the library: the RP600K001B-TR by Nisshinbo Micro Devices Inc., the RP600K003B-TR by Nisshinbo Micro Devices Inc., the RP600K006B-TR by Nisshinbo Micro Devices Inc. and the RP600K007B-TR by Nisshinbo Micro Devices Inc.. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ETA6003Q3Q?
4 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8RP600K001B-TR
DFN-10-EP(2.5x2.7)-40℃~+85℃@(TA) 1 1.2MHz 4.2V 500mA 800mV~5.5V Boost Boost Built-in Fixed No DFN-10-EP(2.5x2.7) DC-DC Converters ROHSNisshinbo Micro Devices Inc.DC-DC ConvertersRP600K003B-TR
DFN-10-EP(2.5x2.7)-40℃~+85℃@(TA) 1 1.2MHz 4.2V 500mA 800mV~5.5V Boost Boost Built-in Fixed No DFN-10-EP(2.5x2.7) DC-DC Converters ROHSNisshinbo Micro Devices Inc.DC-DC ConvertersRP600K006B-TR
DFN-10-EP(2.5x2.7)-40℃~+85℃@(TA) 1 1.2MHz 4.2V 500mA 800mV~5.5V Boost Boost Built-in Fixed No DFN-10-EP(2.5x2.7) DC-DC Converters ROHSNisshinbo Micro Devices Inc.DC-DC ConvertersRP600K007B-TR
DFN-10-EP(2.5x2.7)-40℃~+85℃@(TA) 1 1.2MHz 4.2V 500mA 800mV~5.5V Boost Boost Built-in Fixed No DFN-10-EP(2.5x2.7) DC-DC Converters ROHSNisshinbo Micro Devices Inc.DC-DC ConvertersRP600K010A-TR
DFN-10-EP(2.5x2.7)-40℃~+85℃@(TA) 1 1.2MHz 4.2V 500mA 800mV~5.5V Boost Boost Built-in Fixed No DFN-10-EP(2.5x2.7) DC-DC Converters ROHSNisshinbo Micro Devices Inc.DC-DC ConvertersRP600K013B-TR
DFN-10-EP(2.5x2.7)-40℃~+85℃@(TA) 1 1.2MHz 4.2V 500mA 800mV~5.5V Boost Boost Built-in Fixed No DFN-10-EP(2.5x2.7) DC-DC Converters ROHSNisshinbo Micro Devices Inc.DC-DC ConvertersRP600K101D-TR
DFN-10-EP(2.5x2.7)-40℃~+85℃@(TA) 1 1.2MHz 4.2V 500mA 800mV~5.5V Boost Boost Built-in Fixed No DFN-10-EP(2.5x2.7) DC-DC Converters ROHSNisshinbo Micro Devices Inc.DC-DC ConvertersRP600K104D-TR
DFN-10-EP(2.5x2.7)-40℃~+85℃@(TA) 1 1.2MHz 4.2V 500mA 800mV~5.5V Boost Boost Built-in Fixed No DFN-10-EP(2.5x2.7) DC-DC Converters ROHSNisshinbo Micro Devices Inc.DC-DC Converters