LTM4607EV#PBF Linear Technology, LTM4607EV#PBF Datasheet

IC BUCK/BOOST SYNC ADJ 5A 141LGA

LTM4607EV#PBF

Manufacturer Part Number
LTM4607EV#PBF
Description
IC BUCK/BOOST SYNC ADJ 5A 141LGA
Manufacturer
Linear Technology
Series
µModuler
Type
Point of Load (POL) Non-Isolatedr
Datasheet

Specifications of LTM4607EV#PBF

Design Resources
LTM4607 Spice Model
Output
0.8 ~ 24 V
Number Of Outputs
1
Power (watts)
120W
Mounting Type
Surface Mount
Voltage - Input
4.5 ~ 36 V
Package / Case
141-LGA
1st Output
0.8 ~ 24 VDC @ 5A
Size / Dimension
0.59" L x 0.59" W x 0.11" H (15mm x 15mm x 2.8mm)
Power (watts) - Rated
120W
Operating Temperature
-40°C ~ 85°C
Efficiency
98%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTM4607EV#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LTM4607EV#PBF@@
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
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n
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TYPICAL APPLICATION
APPLICATIONS
4.5V TO 36V
Single Inductor Architecture Allows V
Below or Equal to V
Wide V
Wide V
5A DC (10A DC in Buck Mode)
High Efficiency Up to 98%
Current Mode Control
Power Good Output Signal
Phase-Lockable Fixed Frequency: 200kHz to 400kHz
Ultrafast Transient Response
Current Foldback Protection
Output Overvoltage Protection
Small, Low Profile Surface Mount LGA Package
(15mm × 15mm × 2.8mm)
Telecom, Servers and Networking Equipment
Industrial and Automotive Equipment
High Power Battery-Operated Devices
20V/2.5A Buck-Boost DC/DC μModule Regulator with 4.5V to 36V Input
V
IN
IN
OUT
ON/OFF
Range: 4.5V to 36V
10μF
50V
Range: 0.8V to 24V
0.1μF
RUN
SS
SGND
OUT
V
LTM4607
IN
PGND
PLLIN
SENSE
SENSE
R
SENSE
V
4607 TA01
SW1
SW2
FCB
OUT
V
FB
+
CLOCK SYNC
4.7μH
IN
4.12k
Above,
R2
7mΩ
10μF
35V
+
DESCRIPTION
The LTM
boost power supply. Included in the package are the
switching controller, power FETs, and support components.
Operating over an input voltage range of 4.5V to 36V, the
LTM4607 supports an output voltage range of 0.8V to
24V, set by a resistor. This high efficiency design delivers
up to 5A continuous current in boost mode (10A in buck
mode). Only the inductor, sense resistor, bulk input and
output capacitors are needed to finish the design.
The low profile package enables utilization of unused space
on the bottom of PC boards for high density point of load
regulation. The high switching frequency and current
mode architecture enable a very fast transient response
to line and load changes without sacrificing stability. The
LTM4607 can be frequency synchronized with an external
clock to reduce undesirable frequency harmonics.
Fault protection features include overvoltage and foldback
current protection. The DC/DC μModule
in a small thermally enhanced 15mm × 15mm × 2.8mm
LGA package. The LTM4607 is Pb-free and RoHS compliant.
L, LT, LTC, LTM, Linear Technology, the Linear logo, μModule and PolyPhase are registered
trademarks and No R
trademarks are the property of their respective owners.
36V
330μF
25V
V
20V
2.5A
IN
OUT
®
4607 is a high efficiency switching mode buck-
, 24V
SENSE
µModule Regulator
Buck-Boost DC/DC
is a trademark of Linear Technology Corporation. All other
100
99
98
97
96
95
94
93
92
91
90
OUT
6
V
ƒ = 200kHz
OUT
Efficiency and Power Loss
11
= 20V, 2.5A
High Efficiency
vs Input Voltage
16
V
IN
21
(V)
®
regulator is offered
LTM4607
26
31
4607 TA01b
36
6
5
4
3
2
1
0
4607fb
1

Related parts for LTM4607EV#PBF

LTM4607EV#PBF Summary of contents

Page 1

... The DC/DC μModule in a small thermally enhanced 15mm × 15mm × 2.8mm LGA package. The LTM4607 is Pb-free and RoHS compliant. L, LT, LTC, LTM, Linear Technology, the Linear logo, μModule and PolyPhase are registered trademarks and No R trademarks are the property of their respective owners. ...

Page 2

... Storage Temperature Range .................. –55°C to 125°C ORDER INFORMATION LEAD FREE FINISH PART MARKING* LTM4607EV#PBF LTM4607V LTM4607IV#PBF LTM4607V Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER Output Specifications I Output Continuous Current Range OUTDC (See Output Current Derating Curves for Different and T IN OUT ΔV /V Reference Voltage Line Regulation FB ...

Page 4

LTM4607 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER Control Section V Feedback Reference Voltage FB V RUN Pin ON/OFF Threshold RUN I Soft-Start Charging Current SS V Start-Up Threshold STBYMD(START) V Keep-Active Power On Threshold STBYMD(KA) ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current 6V to 12V IN OUT 100 BURST 10 DCM CCM 0 0.01 0.1 1 LOAD CURRENT (A) 4607 G01 Efficiency vs Load Current 3.3μH Inductor ...

Page 6

LTM4607 TYPICAL PERFORMANCE CHARACTERISTICS Transient Response from 32V to 12V IN OUT I OUT 2A/DIV V OUT 100mV/DIV 4607 G10 200μs/DIV LOAD STEP CCM OUTPUT CAPS: 4 22μF CERAMIC CAPS AND 2 180μF ELECTROLYTIC CAPS 2 ...

Page 7

PIN FUNCTIONS V (Bank 1): Power Input Pins. Apply input voltage be- IN tween these pins and PGND pins. Recommend placing input decoupling capacitance directly between V and PGND pins. V (Bank 5): Power Output Pins. Apply output load OUT ...

Page 8

LTM4607 SIMPLIFIED BLOCK DIAGRAM EXTV CC INTV CC PGOOD RUN ON/OFF 100k STBYMD 0.1μF COMP SS SS 0.1μF PLLIN PLLFLTR FILTER FCB 1000pF DECOUPLING REQUIREMENTS SYMBOL PARAMETER C External Input Capacitor Requirement 4.5V to 36V ...

Page 9

OPERATION Power Module Description The LTM4607 is a non-isolated buck-boost DC/DC power supply. It can deliver a wide range output voltage from 0.8V to 24V over a wide input range from 4.5V to 36V, by only adding the sensing resistor, ...

Page 10

LTM4607 APPLICATIONS INFORMATION oscillator and a phase detector. This allows turning on the internal top MOSFET for locking to the rising edge of the external clock. A pulse detection circuit is used to detect a clock on the PLLIN pin ...

Page 11

APPLICATIONS INFORMATION or choose a capacitor rated at a higher temperature than required. Always contact the capacitor manufacturer for derating requirements. Output Capacitors In boost mode, the discontinuous current shifts from the input to the output, so the output capacitor ...

Page 12

LTM4607 APPLICATIONS INFORMATION In buck mode, the allowed maximum average load cur- rent is: 130mV Δ OUT(MAX,BUCK SENSE The maximum current sensing R SENSE mode is SENSE(MAX,BOOST) 2 • 160mV • V ...

Page 13

APPLICATIONS INFORMATION pin for turning off the controller. If the pin is left open or decoupled with a capacitor to ground, the SS pin is internally provided with a starting current, permitting external control for turning on the controller. If ...

Page 14

LTM4607 APPLICATIONS INFORMATION To choose a proper inductor, we need to know the current ripples at different input voltages. The inductor should be chosen by considering the worst case in the practi- cal operating region. If the maximum output power ...

Page 15

APPLICATIONS INFORMATION 0.6 1.5μH 0.4 2.5μH 3.3μH 0.2 4.7μ INPUT VOLTAGE V (V) IN Figure 4. Current Ripple Ratio at Different Inputs for Boost Mode Figure 4 shows the current ripple ratio at ...

Page 16

LTM4607 APPLICATIONS INFORMATION Table 3. Typical Components (f = 400kHz) C VENDORS PART NUMBER OUT1 TDK C4532X7R1E226M (22μF , 25V) INDUCTOR VENDORS PART NUMBER Toko FDA1254 Sumida CDEP134, CDEP145, CDEP147 OUT SENSE (V) (V) (0.5W RATING) ...

Page 17

... SENSING RESISTOR MANUFACTURER WEBSITE Panasonic www.panasonic.com/industrial/components KOA www.koaspeer.com Vishay www.vishay.com *Maximum load current is based on the Linear Technology DC1198A at room temperature with natural convection. Poor board layout design may decrease the maximum load current. Table 4. Boost Mode DERATING CURVE V (V) OUT Figure 7, 9 ...

Page 18

LTM4607 APPLICATIONS INFORMATION 12V IN OUT 5V to 16V IN OUT 0.5 1 1.5 2 2.5 OUTPUT CURRENT (A) Figure 5. Boost Mode Operation 4.0 3.5 3.0 2.5 2.0 ...

Page 19

APPLICATIONS INFORMATION AMBIENT TEMPERATURE (°C) 20V TO 12V WITH 0LFM IN OUT 20V TO 12V WITH 200LFM IN OUT 20V TO 12V WITH 400LFM IN OUT Figure ...

Page 20

LTM4607 APPLICATIONS INFORMATION Layout Checklist/Example The high integration of LTM4607 makes the PCB board layout very simple and easy. However, to optimize its electri- cal and thermal performance, some layout considerations are still necessary. • Use large PCB copper areas ...

Page 21

TYPICAL APPLICATIONS V IN 12V TO 36V R1 1. 12V Figure 17. Boost Mode Operation with 5V to 12V Input with Low Switching Noise (Optional) CLOCK SYNC 10μF 50V V PLLIN IN PGOOD V ...

Page 22

LTM4607 TYPICAL APPLICATIONS 36V R1 1. Figure 18. Wide Input Mode with 5V to 36V Input, 12V at 5A Output V IN 4.5V TO 36V R1 1. CLOCK SYNC 10μF 50V ...

Page 23

TYPICAL APPLICATIONS 36V LTC6908-1 5.1V C1 ZENER 0.1μ OUT1 R4 GND OUT2 324k SET MOD 2-PHASE OSCILLATOR V IN 12V TO 24V 10μF 50V V PLLIN IN PGOOD ×2 ON/OFF RUN –12V LTM4607 COMP ...

Page 24

LTM4607 PACKAGE DESCRIPTION bbb 6.9850 5.7150 4.4450 3.1750 1.9050 0.6350 0.0000 0.6350 1.9050 3.1750 4.4450 5.7150 6.9850 4607fb ...

Page 25

... Added new Figure 21. Updated the Related Parts. Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTM4607 ...

Page 26

... V ≤ 10V SENSE IN OUT ® Operation, LTM4603-1 Version Has No Remote ≤ 5V; 9mm × 15mm × 2.3mm OUT ≤ 5V; 9mm × 15mm × 2.8mm OUT LT 0111 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 ≤ 30V OUT 4607fb ...

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