LTM4670
Low V , Quad µModule Regulator with
IN
Configurable 10A Output Array
FEATURES
DESCRIPTION
The LTM®4670 is a quad DC/DC step-down µModule®
(micromodule) regulator with 10A per output. Outputs can
be paralleled in an array for up to 40A capability. Included in
the package are the switching controller, power MOSFETs,
inductor and all support components. Operating over an input
voltage range of 2.25V to 5.5V, each output voltage ranges
n
Quad Output Step-Down µModule Regulator
with 10A per Output
n
n
n
n
n
n
Input Voltage Range: 2.25V to 5.5V
Output Voltage Range: 0.5V to V
IN
10A DC Output Current Each Channel
Ultra Low EMI Noise
Parallelable for Up to 40A Output Current
Selectable Pulse-Skipping Mode/Forced
Continuous Mode
from 0.5V to V set by only one external resistor. Its high
IN
efficiency design delivers 10A continuous output current per
channel. Only a few input and output capacitors are needed.
n
n
n
n
n
Output Voltage Tracking
The LTM4670 employs a Silent Switcher®2 architecture
with internal hot loop bypass capacitors to achieve both
low EMI and high efficiency. The default frequency is inter-
nally set to 2MHz, it can be externally synchronized to a
clock from 1MHz to 2.6MHz.
Die Temperature Monitoring Output
External Frequency Synchronization
Power Good Indicator
Overvoltage, Overcurrent and Overtemperature
Protection
7.5mm × 15mm × 4.65mm BGA Package
n
Fault protection features include overvoltage, overcurrent
and overtemperature protection. The LTM4670 is Pb-free
and RoHS compliant.
APPLICATIONS
n
Configurable Output Array
Telecom, Networking and Industrial Equipment
n
10A
Multirail Point-of-Load Regulation
20A
10A
10A
10A
30A
10A
n
FPGAs, DSPs and ASICs Applications
40A
10A
10A
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
Efficiency and
Quad Output, 10A DC/DC μModule Regulator
Power Loss at 1.5VOUT
ꢅ
V
IN
2.25V TO 5.5V
ꢀ
ꢀꢁꢂꢃꢂꢄ
ꢁꢂꢃ
ꢀꢁꢁ
ꢀꢁ
ꢀꢁ
ꢀꢁ
ꢀꢁ
ꢀꢁ
ꢀꢁ
ꢀꢁ
ꢀꢁ
ꢀꢁ
ꢀ
ꢀ.ꢁ
V
ꢀ
OUT
22μF
×4
6.3V
ꢁꢂꢃꢄ
ꢀ
ꢃ ꢄ.ꢄꢀ
Rꢀꢁꢂ
ꢀRꢁꢂꢃ
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉ
ꢁꢂ
0.8V, 10A
ꢀꢁꢂ
100μF
×2
6.3V
0.1μF
0.1μF
ꢀꢁꢁꢂꢃꢂꢀꢄꢃꢅ
100k
ꢀ.ꢁ
ꢀ.ꢁ
ꢀ.ꢁ
ꢀ.ꢁ
ꢀ
ꢀꢀꢁꢁꢂ
ꢀ
ꢃ ꢄ.ꢄꢀ
ꢁꢂ
ꢅ
ꢀ
ꢁꢂꢃ
ꢀꢁꢂꢃꢂꢄ
ꢀ
Rꢀꢁꢂ
ꢀRꢁꢂꢃ
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉ
ꢁꢂꢃꢄ
1V, 10A
ꢀꢁꢂ
100μF
×2
6.3V
60.4k
ꢀꢁꢂꢃR ꢄꢁꢅꢅ
ꢀꢀꢁꢁꢂ
ꢀꢁꢂꢃꢄꢅꢆ
ꢀ
ꢃ ꢄ.ꢄꢀ
ꢁꢂ
ꢅ
ꢀ
ꢁꢂꢃ
ꢀꢁꢂꢃꢂꢄ
ꢀ
ꢃ ꢄ.ꢄꢀ
ꢁꢂ
ꢀ
Rꢀꢁꢂ
ꢀRꢁꢂꢃ
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉ
ꢁꢂꢃꢄ
1.2V, 10A
ꢀꢁꢂ
100μF
×2
6.3V
0.1μF
0.1μF
43.2k
30.1k
ꢀ
ꢄ ꢅ.ꢆꢀ
ꢁꢂꢃ
ꢀꢀꢁꢁꢂ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀꢁ
PINS NOT USED
ꢅ
ꢀ
ꢁꢂꢃ
ꢀꢁꢂꢃꢂꢄ
ꢀꢁAꢂ ꢃꢄRRꢅꢆꢇ ꢈAꢉ
IN THIS CIRCUIT:
PGOOD1,2,3,4
SW1,2,3,4
ꢀꢁꢂꢃ ꢄAꢃꢅꢆ
Rꢀꢁꢂ
ꢀRꢁꢂꢃ
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉ
ꢀ
1.5V, 10A
ꢁꢂꢃꢄ
ꢀꢁꢂ
100μF
×2
COMP1,2,3,4
6.3V
ꢀꢀꢁꢁꢂ
ꢀꢁꢂꢃꢄꢅꢆꢅꢇꢅꢈ ꢀꢁꢂꢃꢄꢅꢄꢆꢄꢇ
4670 TA01a
Rev. A
1
Document Feedback
For more information www.analog.com