TP7660H from TOPPOWER Nanjing Extension Microelectronics, in a SOIC-8-150mil. 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	NC	unconnected	No connection. Datasheet recommends grounding this pin in the application circuit.
2	CAP+	passive	Positive terminal of the external flying (pump) capacitor. Connect a 10 uF capacitor between CAP+ (pin 2) and CAP- (pin 4).
3	GND	power_in	Ground reference for the device and for the input/output capacitors.
4	CAP-	passive	Negative terminal of the external flying (pump) capacitor. Connect a 10 uF capacitor between CAP+ (pin 2) and CAP- (pin 4).
5	VOUT	power_out	Inverted charge-pump output. Delivers a negative voltage of approximately -VDD (range -2.5 V to -11 V). Bypass to GND with a 10 uF storage capacitor. Typical output resistance 50 Ω at VIN=5 V, IOUT=10 mA.
6	NC	unconnected	No connection. Datasheet recommends grounding this pin in the application circuit.
7	OSC	bidirectional	Oscillator node. Left open the internal oscillator runs at ~10 kHz. May be pulled by an external CMOS clock (through a 1 kΩ series resistor) to raise frequency (charge-pump runs at half the clock), or loaded with an external capacitor between OSC (pin 7) and VDD (pin 8) to lower the oscillator frequency and reduce switching loss.
8	VDD	power_in	Positive supply input. Operating range 2.5 V to 11 V (absolute maximum 11.5 V). Bypass to GND with a 10 uF capacitor.

Key specifications

Parameter	Value
Manufacturer	TOPPOWER Nanjing Extension Microelectronics
Package	SOIC-8-150mil
Category	PMIC
Pins	8

CAD (KiCad official)

Symbol: TP7660H
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8-150mil (KiCad packages3D, STEP)

Provenance

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

Datasheet: TOPPOWER Nanjing Extension Microelectronics datasheet (7 pp, sha256 c4c325621b63dab9, retrieved 2026-08-17, tier: lcsc)
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).

Datasheet PDF