LTM4607IV#PBF Linear Technology, LTM4607IV#PBF Datasheet
![IC BUCK/BOOST SYNC ADJ 5A 141LGA](/photos/8/70/87008/ltm4607iv_pbf_sml.jpg)
LTM4607IV#PBF
Specifications of LTM4607IV#PBF
Available stocks
Related parts for LTM4607IV#PBF
LTM4607IV#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
... 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. For more information on lead free part marking, go to: This product is only offered in trays. For more information go to: ...
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 ...