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5.5-28V 2ch Synchronous Buck converter (controller) with Built-in Linear Regulator - BD9528AMUV

This IC is a switching regulator controller with high output current which can achieve low output voltage (1.0V to 5.5V) from a wide input voltage range (5.5V to 28V). High efficiency for the switching regulator can be realized by utilizing an external N-MOSFET power transistor. A new technology called H3Reg™ is a Rohm proprietary control method to realize ultra high transient response against load change. SLLM™ (Simple Light Load Mode) technology is also integrated to improve efficiency in light load mode, providing high efficiency over a wide load range. For protection and ease of use, the soft start function, variable frequency function, short circuit protection function with timer latch, and REF synchronous function are all built in. This switching regulator is specially designed for Note PC.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number | BD9528AMUV-E2
Status | Active
Package | VQFN032V5050
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

ch

2

Integrated FET / Controller

Controller

Buck / Boost / Buck-Boost / Inverting

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

5.5

Vin1(Max.)[V]

28.0

Vout1(Min.)[V]

1.0

Vout1(Max.)[V]

5.5

Vin2(Min.)[V]

5.5

Vin2(Max.)[V]

28.0

Vout2(Min.)[V]

1.0

Vout2(Max.)[V]

5.5

SW frequency(Max.)[MHz]

0.5

Light Load mode

Yes

EN

Yes

PGOOD

Yes

Operating Temperature (Min.)[°C]

-20

Operating Temperature (Max.)[°C]

100

Features:

・2ch H3REG™ Switching Regulator Controller
・Adjustable Simple Light Load Mode (SLLM), Quiet Light Load Mode (QLLM) and Forced continuous Mode
・Thermal Shut Down (TSD), Under Voltage LockOut (UVLO), Over Current Protection (OCP),
    Over Voltage Protection (OVP), Short circuit protection with 0.75ms timer-latch (SCP)
・Soft start function to minimize rush current during startup
・Switching Frequency Variable (f=150kHz~500kHz)
・Built-in Power good circuit
・Built-in 2ch Linear regulator (5V/3.3V ,Total 100mA)
・Built in reference voltage(0.7V)
・Built-in BOOT-Di
・Built-in output discharge