LTM4603IV-1#PBF Linear Technology, LTM4603IV-1#PBF Datasheet
LTM4603IV-1#PBF
Specifications of LTM4603IV-1#PBF
Available stocks
Related parts for LTM4603IV-1#PBF
LTM4603IV-1#PBF Summary of contents
Page 1
... The onboard remote sense amplifi not available in the LTM4603-1. The LTM4603/LTM4603-1 are pin compatible with the 12A LTM4601/LTM4601- LTC, LTM and PolyPhase are registered trademarks of Linear Technology Corporation. μModule is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...
Page 2
... LTM4603EV-1#PBF LTM4603EV-1#PBF LTM4603IV-1#PBF LTM4603IV-1#PBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi 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: ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi ...
Page 3
ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER I Input Supply Bias Current Q(VIN,NOLOAD) I Input Supply Current S(VIN) INTV V = 12V, RUN > Output Specifi cations I Output Continuous Current Range ...
Page 4
LTM4603/LTM4603-1 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER R Input Resistance IN CMRR Common Mode Rejection Ratio Control Stage V Error Amplifi er Input Voltage FB Accuracy V RUN Pin On/Off Threshold RUN I Soft-Start ...
Page 5
TYPICAL PERFORMANCE CHARACTERISTICS Effi ciency vs Load Current with 5V IN 100 0.6V IN OUT 1.2V IN OUT 5V , 1.5V IN OUT 1.8V IN OUT ...
Page 6
LTM4603/LTM4603-1 TYPICAL PERFORMANCE CHARACTERISTICS Start-Up OUT V OUT 0.5V/DIV I IN 0.5A/DIV 4603 G09 1ms/DIV V = 12V 1.5V OUT 22μF , 6.3V CERAMIC OUT 1 330μ SANYO POSCAP ...
Page 7
PIN FUNCTIONS (See Package Description for Pin Assignment) 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 3): Power ...
Page 8
LTM4603/LTM4603-1 PIN FUNCTIONS (See Package Description for Pin Assignment) MARG0 (Pin C12): This pin is the LSB logic input for the margining function. Together with the MARG1 pin will determine if margin high, margin low or no margin state is ...
Page 9
DECOUPLING REQUIREMENTS SYMBOL PARAMETER C External Input Capacitor Requirement 4.5V to 20V OUT C External Output Capacitor Requirement OUT (V = 4.5V to 20V OUT OPERATION Power Module Description The LTM4603 is a ...
Page 10
LTM4603/LTM4603-1 APPLICATIONS INFORMATION The typical LTM4603 application circuit is shown in Figure 18. External component selection is primarily determined by the maximum load current and output voltage. Refer to Table 2 for specifi c external capacitor requirements for a particular ...
Page 11
APPLICATIONS INFORMATION or choose a capacitor rated at a higher temperature than required. Always contact the capacitor manufacturer for derating requirements. In Figure 18, the 10μF ceramic capacitors are together used as a high frequency input decoupling capacitor ...
Page 12
LTM4603/LTM4603-1 APPLICATIONS INFORMATION 1.00 0.95 0.90 0.85 0.80 0.75 0.70 0.65 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0.1 0.15 0.2 0.25 Figure 4. Normalized Output Ripple Current vs Duty Cycle, Dlr = V ...
Page 13
APPLICATIONS INFORMATION the ramp of the internal reference and the output voltage. The total soft-start time can be calculated as • – SOFTSTART OUT MARGIN When the RUN pin ...
Page 14
LTM4603/LTM4603-1 APPLICATIONS INFORMATION to the rising edge of the external clock. The frequency range is ±30% around the operating frequency of 1MHz. A pulse detection circuit is used to detect a clock on the PLLIN pin to turn on the ...
Page 15
APPLICATIONS INFORMATION 1.5V , 0LFM 1 IN OUT 5V , 1.5V , 200LFM IN OUT 5V , 1.5V , 400LFM IN OUT AMBIENT TEMPERATURE (°C) 4603 F10 Figure ...
Page 16
LTM4603/LTM4603-1 APPLICATIONS INFORMATION Table 2. Output Voltage Response Versus Component Matrix (Refer to Figure 18) TYPICAL MEASURED VALUES C VENDORS PART NUMBER OUT1 TAIYO YUDEN JMK316BJ226ML-T501 (22μF , 6.3V) TAIYO YUDEN JMK325BJ476MM-T (47μF , 6.3V) TDK C3225X5R0J476M (47μF , 6.3V) ...
Page 17
APPLICATIONS INFORMATION Table 3. 1.5V Output DERATING CURVE V (V) IN Figures Figures Figures Figures 10 12, 20 Figures 10 12, 20 Figures 10, ...
Page 18
LTM4603/LTM4603-1 APPLICATIONS INFORMATION Safety Considerations The LTM4603 modules do not provide isolation from There is no internal fuse. If required, a slow blow fuse OUT with a rating twice the maximum input current needs to be provided ...
Page 19
APPLICATIONS INFORMATION Example for 5V Output LTM4603 minimum on-time = 100ns ((4.8 • 10pf)/ fSET LTM4603 minimum off-time = 400ns; t where t = 1/Frequency Duty Cycle = OUT IN ...
Page 20
LTM4603/LTM4603-1 APPLICATIONS INFORMATION V IN 10V TO 20V R2 100k 5% MARGIN R1 C2 392k 10μF 1% 25V C1 10μF 25V IMPROVE EFFICIENCY FOR ≥12V INPUT CMSSH-3C3 Figure 16 Design Without Differential Amplifi 4.5V ...
Page 21
APPLICATIONS INFORMATION V OUT V IN 4.5V TO 20V R2 100k PGOOD BULK OPT TABLE 2 10μF 25V 2 CER 5% MARGIN C12 0.1μF LTC6908 OUT1 2 5 R11 GND OUT2 ...
Page 22
LTM4603/LTM4603-1 TYPICAL APPLICATION 22 4603fa ...
Page 23
... 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. LTM4603/LTM4603 bbb ...
Page 24
... Basic 10A Power Supply with PLL, Output Tracking and Margining, LTM4603 Pin Compatible Basic 6A Power Supply www.linear.com ● REVIEW TEMPERATURE DERATING CURVE V OUT 3. 100pF C3 100μF 6. fSET SET 82.5k 13.3k 4603 TA05 4603fa LT 1008 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2007 ...