el7534 Intersil Corporation, el7534 Datasheet
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el7534
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el7534 Summary of contents
Page 1
... Additional features include a 100ms Power-On-Reset output, <1µA shut-down current, short-circuit protection, and over-temperature protection. The EL7534 is available in the 10 Ld MSOP package, making the entire converter occupy less than 0.15 in PCB area with components on one side only. Both packages are specified for operation over the full -40° ...
Page 2
... OLPOR AC CHARACTERISTICS F PWM Switching Frequency PWM t Minimum RSI Pulse Width RSI t Soft-start Time SS t Power On Reset Delay Time POR 2 EL7534 = 25°C) Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C + +0.3V) Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150° +0.3V) Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125° 3.3V 10µ 1.8µH, V ...
Page 3
... V O 0.1µF 10pF 124K 100K CLOCK 1.5MHz EN EN SOFT-START 10µF + BANDGAP – REFERENCE 2.5V- 3.5V SGND RSI 3 EL7534 PIN FUNCTION PWM COMPEN- + SATION - PWM COMPARATOR CONTROL RAMP LOGIC GENERATOR UNDER- VOLTAGE LOCKOUT TEMPERATURE SENSE POR and SGND for variable CURRENT LIMIT P-DRIVER 1.8µ ...
Page 4
... V =3.3V I =600mA IN O -0.3% -0.4% -0.5% -0.6% V =5V I =600mA IN O -0.7% - (°C) J FIGURE 5. LOAD/LINE REGULATIONS vs JUNCTION TEMPERATURE 4 EL7534 = 1.8V 600mA with component values shown on page 1 at room ambient temperature, unless O V =1.8V O 400 600 =3.3V, I =600mA =5V 100 150 V = 100 ...
Page 5
... Performance Curves and Waveforms All waveforms are taken 3.3V otherwise noted. 0.5ms/DIV FIGURE 7. START-UP 1 50ms/DIV FIGURE 9. POR FUNCTION 5 EL7534 (Continued) = 1.8V 600mA with component values shown on page 1 at room ambient temperature, unless (1V/DIV (0.5A/DIV (1V/DIV (2V/DIV (2V/DIV) ...
Page 6
... AMBIENT TEMPERATURE (°C) FIGURE 12. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE 6 EL7534 (Continued) = 1.8V 600mA with component values shown on page 1 at room ambient temperature, unless O 100 125 150 FIGURE 13. PACKAGE POWER DISSIPATION vs AMBIENT JEDEC JESD51-7 HIGH EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD 1 ...
Page 7
... The output voltage is gradually increased to ensure proper soft- start operation. When the EN pin is connected to a logic low, the EL7534 is in the shut-down mode. All the control circuitry and both MOSFETs are off, and V falls to zero. In this mode, the OUT total input current is less than 1µ ...
Page 8
... EN pin connects to logic HI. Thermal Performance The EL7534 fused-lead MSOP10 package. Compared with regular MSOP10 package, the fused-lead package provides lower thermal resistance. The θ 4-layer board and 125°C/W on 2-layer board. Maximizing the ...
Page 9
... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 9 EL7534 MDP0043 A MINI SO PACKAGE FAMILY ...