ISL97536 Intersil Corporation, ISL97536 Datasheet
ISL97536
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ISL97536 Summary of contents
Page 1
... Additional features include a 100ms Power-On- Reset output, <1µA shutdown current, short-circuit protection, and over-temperature protection. The ISL97536 is available in the 10 Ld MSOP package, making the entire converter occupy less than 0.15in area with components on one side only. The 10 Ld MSOP package is specified for operation over the full -40° ...
Page 2
... PWM Switching Frequency PWM t Minimum RSI Pulse Width RSI t Soft-Start Time SS t Power On Reset Delay Time POR 2 ISL97536 = +25°C) Thermal Information Thermal Resistance (Typical, Note 1) + +0.3V) MSOP10 Package . . . . . . . . . . . . . . . . . . . . . . . . . . IN + +0.3V) IN Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C ...
Page 3
... V 0.1µF O 10pF C4 124k 470pF 100k CLOCK EN EN SOFT- START 10µF + BANDGAP 5V – REFERENCE SGND RSI 3 ISL97536 PIN FUNCTION INDUCTOR SHORT PWM COMPEN- + SATION - PWM COMPARATOR RAMP PFM CONTROL GENERA- ON-TIME LOGIC TOR CONTROL + - PWM COMPARATOR UNDER- VOLTAGE LOCKOUT TEMPERATURE SYNCHRONOUS ...
Page 4
... I (mA) O FIGURE 3. LOAD REGULATION -0.05 -0.1 -0.15 -0 1.2V O -0.25 -0 1.8V O -0.35 V (V) IN FIGURE 5. LINE REGULATION ISL97536 = 1.8V 600mA with component values shown on page 1 at room ambient temperature, unless O 100 = 1. 1.2V O 800 1000 800.2 1000.2 1200 3. 2. ...
Page 5
... FIGURE 7. START- 0.2µs/DIV FIGURE 9. EXTERNAL SYNCHRONIZATION TO 2MHz 100µs/DIV FIGURE 11. LOAD TRANSIENT RESPONSE (22mA TO 600mA) 5 ISL97536 (Continued) = 1.8V 600mA with component values shown on page 1 at room ambient temperature, unless O = 600mA FIGURE 8. PWM STEADY-STATE OPERATION (I O SYNC (2V/DIV) ...
Page 6
... O FIGURE 13. EFFICIENCY vs I 0.5 0.3 12MHz 0.1 1.4MHz -0.1 -0.3 -0.5 0 200 400 600 800 V (V) IN FIGURE 15. LINE REGULATION @ 500mA ISL97536 (Continued) = 1.8V 600mA with component values shown on page 1 at room ambient temperature, unless O 1.4MHz 12MHz 1K 1. 5MHz FIGURE 17. OVERCURRENT HICCUP MODE 1 12MHz 0 ...
Page 7
... The inductor current limit is gradually increased to ensure proper soft-start operation. When the EN pin is connected to a logic low, the ISL97536 is in the shutdown 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
... Maximize the copper area around the PGND pin 4 6. Place several via holes under the chip to additional ground plane to improve heat dissipation The demo board is a good example of layout based on this outline. Please refer to the ISL97536 Application Brief (~10-100k), C ...
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 ISL97536 MDP0043 A MINI SO PACKAGE FAMILY ...