Specifications
| Type | Description |
|---|---|
| Part Number | NCP1653 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | PDIP-8 P suffix Case 626; SO-8 D suffix Case 751 |
| Component Type | Power_IC |
| Control topology | Continuous Conduction Mode PFC boost controller; condition: NCP1653/NCP1653A |
| Operating modes | Average current-mode or peak current-mode operation; condition: average mode with external CM on VM pin; peak mode otherwise |
| Output regulation modes | Constant output voltage or follower boost operation; condition: PFC application |
| Switching Frequency NCP1653 | Min 90 kHz, Typ 102 kHz, Max 110 kHz; condition: TJ = -40 °C to +125 °C, VCC = 15 V |
| Switching Frequency NCP1653A | Min 60.3 kHz, Typ 67 kHz, Max 73.7 kHz; condition: TJ = -40 °C to +125 °C, VCC = 15 V |
| Maximum Duty Cycle | Min 94 %; condition: VM = 0 V |
| Gate Drive Output High Resistance | Min 5.0 Ω, Typ 9.0 Ω, Max 20 Ω; condition: draw 100 mA out of Drv pin, Isource = 100 mA |
| Gate Drive Output Low Resistance | Min 2.0 Ω, Typ 6.6 Ω, Max 18 Ω; condition: insert 100 mA into Drv pin, Isink = 100 mA |
| Gate Drive Rise Time | Typ 88 ns; condition: Drv = 2.2 nF to GND, 1.5 V to 13.5 V |
| Gate Drive Fall Time | Typ 61.5 ns; condition: Drv = 2.2 nF to GND, 13.5 V to 1.5 V |
| Reference Current | Min 192 µA, Typ 204 µA, Max 208 µA; condition: VM = 3 V |
| Regulation Block Ratio | Min 95 %, Typ 96 %, Max 98 %; condition: IregL/Iref |
| Vcontrol Pin Internal Resistor | Typ 300 kΩ; condition: control voltage / soft-start pin |
| Maximum Control Voltage | Typ 2.4 V; condition: IFB = 100 µA |
| Maximum Control Current | Typ 100 µA; condition: Icontrol(max) = Iref / 2 |
| Feedback Pin Voltage | Min 1.0 V, Typ 1.5 V, Max 1.9 V; condition: IFB = 100 µA |
| Feedback Pin Voltage | Min 1.3 V, Typ 1.8 V, Max 2.2 V; condition: IFB = 200 µA |
| Overvoltage Protection Ratio | Min 104 %, Typ 107 %; condition: IOVP/Iref |
| Overvoltage Protection Current Threshold | Typ 214 µA, Max 230 µA; condition: feedback pin current threshold |
| Overvoltage Protection Propagation Delay | Typ 500 ns; condition: OVP active disables Drive Output |
| Undervoltage Protection Activate Threshold Ratio | Min 4.0 %, Typ 8.0 %, Max 15 %; condition: VM = 3 V, IUVP(on)/Iref |
| Undervoltage Protection Deactivate Threshold Ratio | Min 7.0 %, Typ 12 %, Max 20 %; condition: VM = 3 V, IUVP(off)/Iref |
| Undervoltage Protection Lockout Hysteresis | Min 4.0 µA, Typ 8.0 µA; condition: feedback current hysteresis |
| Undervoltage Protection Propagation Delay | Typ 500 ns; condition: UVP / shutdown condition |
| Current Sense Pin Offset Voltage | Min 0 mV, Typ 10 mV, Max 30 mV; condition: IS = 100 µA |
| Overcurrent Protection Threshold | Min 185 µA, Typ 200 µA, Max 215 µA; condition: VM = 1 V |
| Input Voltage Sense Pin Internal Resistor | Typ 12 kΩ; condition: Rvac(int) |
| Overpower Limitation Threshold | Typ 3.0 nA²; condition: IS × Ivac |
| OPL Sense Current Threshold | Min 80 µA, Typ 100 µA, Max 140 µA; condition: Ivac = 30 µA, VM = 3 V |
| OPL Sense Current Threshold | Min 24 µA, Typ 32 µA, Max 48 µA; condition: Ivac = 100 µA, VM = 3 V |
| PWM Comparator Reference Voltage | Min 2.25 V, Typ 2.62 V, Max 2.75 V; condition: current modulation |
| Multiplier Current IM1 | Min 1.0 µA, Typ 2.85 µA, Max 5.8 µA; condition: Vcontrol = Vcontrol(max), Ivac = 30 µA, IS = 25 µA |
| Multiplier Current IM2 | Min 3.2 µA, Typ 9.5 µA, Max 18 µA; condition: Vcontrol = Vcontrol(max), Ivac = 30 µA, IS = 75 µA |
| Multiplier Current IM3 | Min 10 µA, Typ 35 µA, Max 58 µA; condition: Vcontrol = Vcontrol(max)/10, Ivac = 30 µA, IS = 25 µA |
| Multiplier Current IM4 | Min 30 µA, Typ 103.5 µA, Max 180 µA; condition: Vcontrol = Vcontrol(max)/10, Ivac = 30 µA, IS = 75 µA |
| Thermal Shutdown Threshold | Min 150 °C; condition: guaranteed by design |
| Thermal Shutdown Hysteresis | Typ 30 °C; condition: thermal shutdown |
| UVLO Startup Threshold | Min 12.25 V, Typ 13.25 V, Max 14.5 V; condition: supply voltage VCC |
| Minimum Operating Voltage After Startup | Min 8.0 V, Typ 8.7 V, Max 9.5 V; condition: supply voltage VCC(off) |
| UVLO Hysteresis | Min 4.0 V, Typ 4.55 V; condition: supply voltage hysteresis |
| Startup Supply Current | Typ 18 µA, Max 50 µA; condition: VCC = VCC(on) - 0.2 V |
| Startup Supply Current | Typ 0.95 mA, Max 1.5 mA; condition: VCC < 8.0 V, IFB = 200 µA |
| Startup Supply Current | Typ 21 µA, Max 50 µA; condition: 8.0 V < VCC < VCC(on) - 0.2 V, IFB = 200 µA |
| Startup Supply Current | Typ 21 µA, Max 50 µA; condition: VCC < VCC(on) - 0.2 V, IFB = 0 µA |
| Operating Supply Current | Typ 3.7 mA, Max 5.0 mA; condition: VCC = 15 V, Drv = open, VM = 3 V |
| Operating Supply Current | Typ 4.7 mA, Max 6.0 mA; condition: VCC = 15 V, Drv = 1 nF to GND, VM = 1 V |
| Shutdown Supply Current | Typ 33 µA, Max 50 µA; condition: VCC = 15 V and IFB = 0 A |
| VCC Operating Range | 8.75 V to 18 V; condition: supply voltage pin operating range |
| Pins 1-5 Maximum Voltage Range | -0.3 V to +9 V; condition: FB, Vcontrol, In, CS, VM pins |
| Pins 1-5 Maximum Current | 100 mA; condition: FB, Vcontrol, In, CS, VM pins |
| Drive Output Maximum Voltage Range | -0.3 V to +18 V; condition: Pin 7 Drv |
| Drive Output Maximum Current Range | 1.5 A; condition: Pin 7 Drv, guaranteed by design |
| Power Supply Maximum Voltage Range | -0.3 V to +18 V; condition: Pin 8 VCC |
| Transient Power Supply Voltage | 25 V; condition: duration < 10 ms, IVCC < 20 mA |
| Maximum Power Dissipation PDIP-8 | 800 mW; condition: P suffix Case 626, TA = 70 °C |
| Thermal Resistance Junction-to-Air PDIP-8 | 100 °C/W; condition: P suffix Case 626 |
| Maximum Power Dissipation SO-8 | 450 mW; condition: D suffix Case 751, TA = 70 °C |
| Thermal Resistance Junction-to-Air SO-8 | 178 °C/W; condition: D suffix Case 751 |
| Operating Junction Temperature Range | -40 °C to +125 °C; condition: TJ |
| Storage Temperature Range | -65 °C to +150 °C; condition: Tstg |
| Datasheet Status | request_only |
Product Overview
The NCP1653 is a Texas Instruments Power_Management Power_IC identified as a CCM PFC controller. The control topology is a Continuous Conduction Mode PFC boost controller for NCP1653/NCP1653A devices. In PFC application circuits, the output regulation can be configured for constant output voltage or follower boost operation.
The controller supports average current-mode or peak current-mode operation. Average mode is used with an external CM on the VM pin, while peak mode applies otherwise. For the NCP1653 version, switching frequency is specified from 90 kHz minimum to 110 kHz maximum with 102 kHz typical at TJ = -40 °C to +125 °C and VCC = 15 V. The NCP1653A frequency option is specified from 60.3 kHz to 73.7 kHz.
Package and assembly options include PDIP-8 P suffix Case 626 and SO-8 D suffix Case 751. Supply operation is specified over 8.75 V to 18 V, with UVLO startup from 12.25 V to 14.5 V and minimum post-startup operating voltage from 8.0 V to 9.5 V. Protection functions include overvoltage, undervoltage, overcurrent, overpower limitation, and thermal shutdown.
Key Features
- Continuous Conduction Mode PFC boost control topology
- Average current-mode or peak current-mode operation
- Constant output voltage or follower boost regulation
- NCP1653 switching frequency from 90 kHz to 110 kHz
- NCP1653A switching frequency from 60.3 kHz to 73.7 kHz
- Minimum 94% maximum duty cycle at VM = 0 V
- Gate drive rise time typical 88 ns
- Gate drive fall time typical 61.5 ns
- UVLO startup threshold from 12.25 V to 14.5 V
- Thermal shutdown threshold minimum 150 °C
Typical Applications
- PFC boost converter control
- Continuous conduction mode PFC stages
- Constant output voltage PFC applications
- Follower boost PFC applications
- Average current-mode PFC designs
- Peak current-mode PFC designs
- Gate-driven power MOSFET PFC circuits
Procurement Notes
When requesting a quote for NCP1653, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What type of controller is the NCP1653?
The NCP1653 is specified as a CCM PFC controller and uses a Continuous Conduction Mode PFC boost control topology for NCP1653/NCP1653A applications.
Which operating modes are supported by the NCP1653?
The controller supports average current-mode or peak current-mode operation. Average mode applies with an external CM on the VM pin, while peak current-mode operation is used otherwise.
What switching frequency is specified for the NCP1653?
For NCP1653, the switching frequency is specified as 90 kHz minimum, 102 kHz typical, and 110 kHz maximum at TJ = -40 °C to +125 °C with VCC = 15 V.
What packages are listed for this controller?
The listed package cases are PDIP-8 P suffix Case 626 and SO-8 D suffix Case 751. The PDIP-8 rating includes 800 mW maximum power dissipation at TA = 70 °C, while SO-8 is 450 mW.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 26, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.