XC9714
SMALL BUCK DC/DC CONVERTER FOR INDUSTRIAL APPLICATIONS
36V 2A Synchronous Step-Down DC/DC Converter, Topr≤125ºC
The XC9714 Series delivers reliable, high-efficiency power conversion across a wide operating voltage range of 4.5V to 36V. Output voltage is adjustable from 2.5V to 18.0V, supporting up to 2.0A output current with exceptional stability.
Featuring a switching frequency of 800kHz, the XC9714 allows users to select between PWM control and PWM/PFM automatic switching via the MODE pin. The XC9714 Series offers exceptional versatility, a single part number can be used across multiple power supply lines. The output voltage can be easily adjusted using an external resistor, while the soft-start time can be extended beyond the internal default by connecting an external resistor and capacitor to the EN/SS pin.
A built-in Power Good function continuously monitors the output voltage status, enabling simple and reliable power sequence configuration when combined with the adjustable soft-start feature.
For safe and stable operation, the XC9714 includes multiple protection features, such as current limit, overvoltage protection, thermal shutdown, and Lx short protection.
Engineered for flexibility, safety, and performance, the XC9714 Series is the ideal solution for your next power management design
KEY FEATURES:
- Wide Input Voltage Range
- Up to 36V (40V Ab. Max.)
- Supports high step-down ratio.
- Wide Operating Temperature Range
- -40ºC to 125ºC
- Thermal Shutdown @ 160ºC
- Switch between PWM and PWM/PFM operation using the MODE pin
- Low Current Consumption
- Only 9 μA Quiescent Current
- 0.5 μA in Standby Mode
- Space Saving Solution
- Ultra-small Package (3.0 x 3.0 x 0.75mm)
- Replace inefficient Linear Regulators
KEY ELECTRICAL PARAMETERS:
| SERIES | XC9714  |
||
| IOUT (max) | 2.0 A | ||
|
ON Resistance (Typ.) |
N-Ch (H) |
0.2 Ω
|
|
| N-Ch (L) | 0.12 Ω | ||
| VIN Range | 4.5 V ~ 36 V | ||
| VOUT Range | 2.5 V ~ 18.0 V | ||
| FB Voltage | 0.75 V ±1.5% | ||
| Switching Frequency | 800kHz | ||
| Operation Mode | PWM (MODE=”H”) | ||
| PWM/PFM (MODE=”L”) | |||
| Quiescent Current (Typ.) | 9 μA | ||
| Standby Current (Typ.) | 0.5 μA | ||
| Protection Circuits | Current Limit (Foldback) | ||
| Output Over Voltage Protection | |||
| Lx short protection | |||
| Thermal Shutdown (160 ºC) | |||
| Other Features | Adjustable Soft-Start | ||
| Power Good | |||
| Inductor Value | 6.8 μH | ||
| Amb. Op. Temp. Range | -40 ~ 125 ºC | ||
| Standard Packages | DFN3030-12A or HSOP-8N | ||
| Smallest Package (mm) | 3.0 x 3.0 x 0.75mm | ||
TYPICAL APPLICATION CIRCUIT
PCB LAYOUT
EFFICIENCY vs. OUTPUT CURRENT
RIPPLE VOLTAGE VS. OUTPUT CURRENT
APPLICATION BLOCK DIAGRAM FOR SMALL INDUSTRIAL SENSORS
12V/24V TO 5.0V, THEN TO 3.3V
These ICs support a wide input voltage range, making them tolerant to input line overshoots. For high-current voltage rails, the XC9714 (2 A) is recommended. For lower-current lines, such as gate-driver supplies, suitable options include the coil-integrated XCL247/XCL248 (600 mA) or the XC9704/XC9705 (600 mA). Built-in Power Good (PG) and adjustable soft-start functions provide precise control for secondary-side power sequencing.
12V/24V DIRECTLY TO 3.3V
The control method can be changed dynamically with the MODE pin.
- MODE “H” = PWM ⇒ Low noise (For sensors, etc.)
- MODE “L” = PWM/PFM ⇒ High efficiency at light load
- Features low ripple, making it ideal for a wide range of applications
PACKAGE AND PIN-OUT
Solutions for Inverting, Positive and Negative, Flyback and Isolation/Multi-Channel
The XC9714 can also be used for solutions including Inverting, Positive and Negative, Flyback, and Isolation/Multi-Channel applications.
To learn more about the below please contact your local representative
