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Contents

README

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NDP1460QB

NDP · DC-DC Converters · QFN-20-EP(5x5)

NDP1460QB from NDP, in a QFN-20-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin, grouped with the PAD1 exposed pad as the ground connection.
2 GND power_in Ground pin, grouped with the PAD1 exposed pad as the ground connection.
3 GND power_in Ground pin, grouped with the PAD1 exposed pad as the ground connection.
4 NC unconnected Listed as No Connected in the pin table; the layout note says this pin is connected to VIN or GND for easy layout.
5 NC unconnected Listed as No Connected in the pin table; the layout note says this pin is connected to VIN or GND for easy layout.
6 VIN power_in Power input; the device operates from 7V to 37V, with VIN to GND absolute maximum of -0.3 to 44 V.
7 VIN power_in Power input; the device operates from 7V to 37V, with VIN to GND absolute maximum of -0.3 to 44 V.
8 VIN power_in Power input; the device operates from 7V to 37V, with VIN to GND absolute maximum of -0.3 to 44 V.
9 NC unconnected No Connected.
10 BST passive Boot strap pin; absolute maximum BST to GND is -0.3 to VIN+7 V.
11 NC unconnected No Connected.
12 SW power_out Switching node connected with an inductor; SW to GND absolute maximum is -0.3 to VIN+0.3 V.
13 SW power_out Switching node connected with an inductor; SW to GND absolute maximum is -0.3 to VIN+0.3 V.
14 SW power_out Switching node connected with an inductor; SW to GND absolute maximum is -0.3 to VIN+0.3 V.
15 NC unconnected No Connected.
16 FB input Feedback of output voltage; the internal reference is 1.0V and FB to GND absolute maximum is -0.3 to 6 V.
17 CSP input Positive pole of current sense; CSP, CSN1 and CSN2 to GND absolute maximum is -0.3 to 25 V.
18 CSN1 input Negative pole 1 of current sense; CSP, CSN1 and CSN2 to GND absolute maximum is -0.3 to 25 V.
19 CSN2 input Negative pole 2 of current sense; CSP, CSN1 and CSN2 to GND absolute maximum is -0.3 to 25 V.
20 FS input Connect a resistor to GND for frequency setting; floating sets 130 kHz, and the pin is shut down when below 0.6V.
21 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer NDP
Package QFN-20-EP(5x5)
Category Power Management (PMIC)
Pins 21

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 VIN 7 37 V 4
UVLO OFF Voltage VUVLO_OFF 6.8 7 V VIN Rising 4
Standby Current ISB 1.7 2.2 mA No Load 4
FB Reference Voltage VREF 0.98 1 1.02 V 4
Current Sense AMP VCS1 VCS1 51 55 59 mV CSP-CSN1 4
Current Sense AMP VCS2 VCS2 51 55 59 mV CSP-CSN2 4
Switching Frequency FSW 110 130 150 kHz FS Floating 4
Switching Frequency FSW 240 300 360 kHz Connect 75kΩ Resister 4
Absolute max VIN to GND -0.3 44 V 3
Absolute max FB, FS to GND -0.3 6 V 3
Absolute max CSP, CSN1, CSN2 to GND -0.3 25 V 3
Absolute max SW to GND (printed upper limit VIN+0.3) -0.3 V 3
Absolute max BST to GND (printed upper limit VIN+7) -0.3 V 3
Operating Junction Temperature TA -40 150 °C 3
Storage Junction Temperature Tstg -65 150 °C 3
Input Voltage (VIN) recommended operating VIN 8 36 V 3
Output Voltage (VOUT) recommended operating VOUT 3.3 20 V 3
Thermal Resistance Junction to case θJC 15 °C/W 3
Thermal Resistance Junction to ambient θJA 40 °C/W 3
Quiescent Current ICCQ 1300 μA VFB = 1.2V, No Switch 4
FB Bias Current IFB 0.2 μA 4
FS Shut Down VFS_SD 0.6 V 4
Maximum Duty Cycle 98 % 4
Minimum On-Time 250 ns 4
Current Limit ILIMIT 7.5 A 4
VOUT Short Protect VSCP 3 V 4
Hiccup Interval THICCUP 400 ms FS Floating 4
Soft Start Time TSS 2 ms 4
RDSON of Power MOSFET high side RDSON_H 14 mΩ Temperature=25℃ 4
RDSON of Power MOSFET low side RDSON_L 14 mΩ Temperature=25℃ 4
Thermal Regulation Temperature TTR 145 °C 4
Thermal Shutdown Temperature TSD 165 °C 4
Thermal Shutdown Hysteresis Temperature TSH 30 °C 4
Output Current (IOUT) recommended operating IOUT 6 A 3

CAD (KiCad official)

  • Symbol: NDP1460QB
  • Footprint: Package_DFN_QFN:QFN-20-1EP_5x5mm_P0.65mm_EP3.35x3.35mm
  • 3D model: QFN-20-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: ndp1460qb-etched.step / ndp1460qb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ndp1460qb.step / ndp1460qb.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: NDP datasheet (14 pp, sha256 04a621968408265a, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF