Package Information
| Lead Count (#) | 16 |
| Pkg. Code | LDI |
| Pitch (mm) | 0.65 |
| Pkg. Type | QFN |
| Pkg. Dimensions (mm) | 3.99 x 3.99 x 0.90 |
Environmental & Export Classifications
| Pb (Lead) Free | No |
| ECCN (US) | EAR99 |
| RoHS (ISL6269AIRZ) | EnglishJapanese |
| Moisture Sensitivity Level (MSL) | |
| HTS (US) |
Product Attributes
| Lead Count (#) | 16 |
| Carrier Type | Tube |
| Pb (Lead) Free | No |
| Temp. Range | -40 to +85°C |
| Bias Voltage Range (V) | 5 - 5 |
| DDR Capable | No |
| Input Voltage (Max) (V) | 25 |
| Input Voltage (Max) [Rail 1] (V) | 25 - 25 |
| Input Voltage (Min) (V) | 5 |
| Input Voltage (Min) [Rail 1] (V) | 5 |
| Input Voltage Range (V) | 5 - 25 |
| Lead Compliant | No |
| Length (mm) | 4 |
| MOQ | 750 |
| Output Current (Max) [Rail 1] (A) | 25 |
| Output Current 1 (Max) (A) | 25 |
| Output Voltage (Max) (V) | 3.3 |
| Output Voltage (Max) [Rail 1] (V) | 3.3 |
| Output Voltage (Min) (V) | 0.6 |
| Output Voltage (Min) [Rail 1] (V) | 0.6 |
| Output Voltage 1 (Max) (V) | 3.3 |
| Outputs (#) | 1 |
| Parametric Category | Buck Controllers (External FETs) |
| Pitch (mm) | 0.7 |
| Pkg. Dimensions (mm) | 4.0 x 4.0 x 0.90 |
| Pkg. Type | QFN |
| Qualification Level | Standard |
| Tape & Reel | No |
| Thickness (mm) | 0.9 |
| Topology [Rail 1] | Buck |
| VBIAS (Max) (V) | 5 |
| VBIAS (Min) (V) | 5 |
| Width (mm) | 4 |
Description
The ISL6269A IC is a Single-phase Synchronous-Buck PWM controller featuring Intersil's Robust Ripple Regulator R3™ Technology that delivers truly superior dynamic response to input voltage and output load transients. Integrated MOSFET drivers and bootstrap diode result in fewer components and smaller implementation area. Intersil’s R3™ Technology combines the best features of fixed-frequency PWM and hysteretic PWM while eliminating many of their shortcomings. R3™ Technology employs an innovative modulator that synthesizes an AC ripple voltage signal VR, analogous to the output inductor ripple current. The AC signal VR enters a window comparator where the lower threshold is the error amplifier output VCOMP, and the upper threshold is a programmable voltage reference VW, resulting in generation of the PWM signal. The voltage reference VW sets the steady-state PWM frequency. Both edges of the PWM can be modulated in response to input voltage transients and output load transients, much faster than conventional fixed-frequency PWM controllers. Unlike a conventional hysteretic converter, the ISL6269A has an error amplifier that provides ±1% voltage regulation at the FB pin. The ISL6269A has a 1. 5ms digital soft-start and can be started into a prebiased output voltage. A resistor divider is used to program the output voltage setpoint. The ISL6269A can be configured to operate in Continuous Conduction Mode (CCM) or Diode Emulation Mode (DEM), which improves light-load efficiency. In CCM the controller always operates as a synchronous rectifier, however when DEM is enabled, the low-side MOSFET is permitted to stay off, blocking negative current flow into the low-side MOSFET from the output inductor.