LTM4601/LTM4601-1 - 12A µModule (Power Module) Regulator with PLL, Output Tracking and Margining

The LTM®4601 is a complete 12A step-down switch mode DC/DC power supply with onboard switching controller, MOSFETs, inductor and all support components. The μModule® regulator is housed in small surface mount 15mm × 15mm × 2.82mm LGA and 15mm × 15mm × 3.42mm BGA packages. Operating over an input voltage range of 4.5V to 20V, the LTM4601 supports an output voltage range of 0.6V to 5V as well as output voltage tracking and margining. The high efficiency design delivers 12A continuous current (14A peak). Only bulk input and output capacitors are needed to complete the design.

The low profile and light weight package easily mounts in unused space on the back side of PC boards for high density point of load regulation. The μModule regulator can be synchronized with an external clock for reducing undesirable frequency harmonics and allows PolyPhase® operation for high load currents.

A high switching frequency and adaptive on-time current mode architecture deliver a very fast transient response to line and load changes without sacrificing stability. An onboard differential remote sense amplifier can be used to accurately regulate an output voltage independent of load current. The onboard remote sense amplifier is not available in the LTM4601-1.

Features

Complete Switch Mode Power Supply
Wide Input Voltage Range: 4.5V to 20V
12A DC Typical, 14A Peak Output Current
0.6V to 5V Output Voltage
Output Voltage Tracking and Margining
Parallel Multiple μModule Regulators for Current Sharing
Differential Remote Sensing for Precision Regulation (LTM4601 Only)
PLL Frequency Synchronization
±1.5% Regulation
Current Foldback Protection (Disabled at Start-Up)
SnPb or RoHS Compliant Finish
UltraFast™ Transient Response
Current Mode Control
Up to 95% Efficiency at 5VIN, 3.3VOUT
Programmable Soft-Start
Output Overvoltage Protection
Small Footprint, Low Profile (15mm × 15mm × 2.82mm) Surface Mount LGA and (15mm × 15mm × 3.42mm) BGA Packages

Typical Application

Applications

Telecom and Networking Equipment
Servers
Industrial Equipment
Point of Load Regulation

Packaging

**Order Information**
Part Number	Package	Temp	Price(1-99)	Price (1k)*
LTM4601EV-1#PBF	15mm × 15mm x 2.82mm LGA	E	$24.21	$15.95
LTM4601EV#PBF	15mm × 15mm x 2.82mm LGA	E	$25.05	$16.50
LTM4601EY-1#PBF	15mm × 15mm × 3.42mm BGA	E	$24.45	$17.11
LTM4601EY#PBF	15mm × 15mm × 3.42mm BGA	E	$26.87	$17.70
LTM4601IV-1#PBF	15mm × 15mm x 2.82mm LGA	I	$26.64	$17.55
LTM4601IV#PBF	15mm × 15mm x 2.82mm LGA	I	$27.55	$18.15
LTM4601IY-1#PBF	15mm × 15mm × 3.42mm BGA	I	$26.74	$18.71
LTM4601IY#PBF	15mm × 15mm × 3.42mm BGA	I	$29.28	$19.29

Demo Boards


Part Number	Description	Price
DC1041A-A	LTM4601 Demo Board \| 4.5V ≤ VIN ≤ 20V, Vout = 0.6V to 5V @ 12A	$65.00
DC1043A-A	LTM4601 Demo Board \| LTM4601(x2), 5V ≤ VIN ≤ 20V, Vout = 0.6V to 3.3V @ 20A	$75.00
DC1043A-B	LTM4601 Demo Board \| LTM4601(x3), 5V ≤ VIN ≤ 20V, Vout = 0.6V to 3.3V @ 30A	$85.00
DC1043A-C	LTM4601 Demo Board \| LTM4601(x4), 5V ≤ VIN ≤ 20V, Vout = 0.6V to 3.3V @ 40A	$95.00
DC1118A-A	LTM4601EV Demo Board \| LTM4601(x2), 5V ≤ VIN ≤ 20V, Vout1 = 3.3V @ 10A, Vout2 = 2.5V @ 12A	$75.00
DC1118A-B	LTM4601EV Demo Board \| LTM4601(x3), 5V ≤ VIN ≤ 20V, Vout1 = 3.3V @ 10A, Vout2 = 2.5V @ 12A, Vout3 = 1.8V @ 12A	$85.00
DC1118A-C	LTM4601EV Demo Board \| LTM4601(x4), 5V ≤ VIN ≤ 20V, Vout1 = 3.3V @ 10A, Vout2 = 2.5V @ 12A, Vout3 = 1.8V @ 12A, Vout4 = 1.5V @ 12A	$95.00