ADP2114 Configurable, Dual 2 A/Single 4 A, Synchronous Step-Down DC-to-DC Regulator

Applications Point-of-load regulation Telecom and networking systems Consumer electronics Industrial and Instrumentation Medical

The ADP2114 is a highly versatile, synchronous step-down, switching regulator that can be configured to satisfy a wide range of customer point of load requirements. The two PWM channels can be configured to deliver independent outputs at 2 A and 2 A (or 3 A/1 A) or can be configured as a single interleaved output capable of delivering 4 A. The two PWM channels are 180º phase shifted to reduce input ripple current and reduce input capacitance.

The ADP2114 provides high efficiency performance at full loads, enabling high switching frequencies at up to 1.2 MHz. At light loads, the ADP2114 can be set to operate in pulse skip mode for higher efficiency or in forced PWM mode to reduce EMI.

The device is designed with an optimized gate slew rate to reduce ENI emissions, allowing the device to supply sensitive, high performance signal chain applications. The frequency can be set to 300 kHz, 600 kHz and 1.2 MHz and can be synchronized to an external clock signal, minimizing the system noise between converters. The bidirectional synchronization pin is also configurable as a 90º out-of-phase output clock, providing the possibility for a stackable multiphase power solution. The ADP2114 input voltage range is from 2.75 V to 5.5 V, and it converts to fixed outputs of 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, or 3.3 V that can be set independently for each channel using external resistors. Using a resistor divider, it is also possible to set the output voltage as low as 0.6 V. The ADP2114 operates over the −40°C to +125°C junction temperature range.

Features and Benefits

Configurable 3 A/1 A or 2 A/2 A dual output load combinations or 4 A combined single output

High efficiency: up to 95%

Input voltage VIN: 2.75 V to 5.5 V

Selectable fixed output: 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V or adjustable output voltage to 0.6 V minimum

±1.5% accuracy reference voltage

Selectable fixed switching frequency: 300 kHz, 600 kHz, or 1.2 MHz

Optimized gate slew rate for reduced EMI

External synchronization or internal clock output

Dual-phase, 180° shifted PWM channels

Current mode for fast transient response, no current sense resistor required

Pulse-skip under light load or forced PWM operation

See data sheet for additonal features

Power Management

Design Tools

ADP2114/16 Dual Buck Regulator Design Tool .

Reference Designs

CN0190 Design & Integration Files .ZIP

Data Sheets

Document	note
ADP2114: Configurable, Dual 2 A/Single 4 A, Synchronous Step-Down DC-to-DC Regulator Data Sheet (Rev. C)	PDF 2.69 M

Application Notes

Document	note
AN-1144: Measuring Output Ripple and Switching Transients in Switching Regulators (Rev. 0)	PDF 3427 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADP2114ACPZ-R2 Production	32 ld LFCSP (5x5mm)	REEL 250	-40 to 85C	2.51	2.51	Y
ADP2114ACPZ-R7 Production	32 ld LFCSP (5x5mm) w/3.1mm exposed pad	REEL 1500	-40 to 85C	0	1.88	Y