ISL9103 Maxim Integrated Products, ISL9103 Datasheet
ISL9103
Related parts for ISL9103
ISL9103 Summary of contents
Page 1
... In addition, the ISL9103, ISL9103A offers a quick bleeding function that discharges the output capacitor when the IC is disabled. The ISL9103, ISL9103A is offered in a 1.6x1.6mm µTDFN package. The complete converter occupies less than 2 0.5cm ...
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... These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 2 ISL9103, ISL9103A OUTPUT VOLTAGE (V) TEMP RANGE (Note 2) (° ...
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... Temperature limits established by characterization and are not production tested. PARAMETER SUPPLY Undervoltage Lockout Threshold (UVLO) UVLO Hysteresis Quiescent Supply Current (for ISL9103 Adjustable Output Voltage Only) Quiescent Supply Current (for ISL9103A Adjustable Output Only) Shut Down Supply Current OUTPUT REGULATION ...
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... I (A) O FIGURE 2. EFFICIENCY vs LOAD CURRENT (VO = 2.5V) 1.800 VIN = 3.6V, RISING 1.795 1.790 1.785 VIN = 3.6V, FALLING 1.780 1.775 0 100 200 300 I (mA) OUT FIGURE 4. OUTPUT VOLTAGE vs LOAD CURRENT (ISL9103, VO_NORMINAL = 1.8V) = 3.6V 2.2µH, MAX UNITS 2.75 MHz - 0 µA - °C - ° 5.5V IN 0.4 0.5 400 500 FN6828 ...
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... Typical Operating Performance 2.520 2.515 VIN = 4.0V, RISING 2.510 2.505 VIN = 4.0V, FALLING 2.500 2.495 0 100 200 I OUT FIGURE 5. OUTPUT VOLTAGE vs LOAD CURRENT (ISL9103, VO_NORMINAL = 2.5V) 5V/DIV 1V/DIV 500mA/DIV 5V/DIV FIGURE 7. SOFT-START TO PWM MODE ( 1.5V 500mA) OUT OUT 5V/DIV V SW 50mV/DIV V OUT 20mA/DIV ...
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... V SW 50mV/DIV V (AC COUPLED) OUT 200mA/DIV I L FIGURE 15. LOAD TRANSIENT FROM PFM TO PWM MODE (V = 3.6V 2.5V, 5mA TO 300mA) IN OUT 6 ISL9103, ISL9103A (Continued) 5V/DIV 50mV/DIV 20mA/DIV = 3.6V, FIGURE 12. LOAD TRANSIENT IN PFM MODE (V IN 5V/DIV V SW 50mV/DIV V OUT I o 200mA/DIV FIGURE 14. LOAD TRANSIENT FROM PWM TO PFM MODE ...
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... Regulator enable pin. Enable the device when driven to high. Shut down the chip and discharge output capacitor when driven to low. Do not leave this pin floating. SW Switching node connection. Connect to one terminal of inductor. GND Ground connection. 7 ISL9103, ISL9103A (Continued) 5V/DIV 50mV/DIV 500mA/DIV FIGURE 18. LOAD TRANSIENT IN PWM MODE (V = 3.6V, IN 5V/DIV ...
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... Panasonic capacitor C3 Capacitor KEMET R1, R2 Resistor Various 8 ISL9103, ISL9103A ISL9103, ISL9103A ADJUSTABLE OUTPUT SW VIN ENABLE EN FB GND ISL9103, ISL9103A FIXED OUTPUT VIN SW ENABLE EN FB GND FIGURE 21. TYPICAL APPLICATIONS DIAGRAM TABLE 1. BILL OF MATERIALS PART NUMBER CDRH2D14NP-2R2NC ECJ-1VB1A106M C0402C470J5GACTU - L OUTPUT 2.2µ 500mA C2 10µ ...
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... NOTE: For Adjustable output version, the internal feedback resistor divider is disabled and the FB pin is directly connected to the error amplifier. Theory of Operation The ISL9103, ISL9103A is a step-down switching regulator optimized for battery-powered handheld applications. The regulator operates at typical 2.4MHz fixed switching frequency under heavy load condition to allow small external inductor and capacitors to be used for minimal printed-circuit board (PCB) area ...
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... SW node does not cross zero during any cycle within the 16-consecutive cycles. Once ISL9103, ISL9103A enters the skip mode, the pulse modulation starts being controlled by the SKIP comparator shown in Figure 22. Each pulse cycle is still synchronized by the PWM clock. The ...
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... Low Dropout Operation The ISL9103, ISL9103A features low dropout operation to maximize the battery life. When the input voltage drops to a level that ISL9103, ISL9103A can no longer operate under switching regulation to maintain the output voltage, the P-Channel MOSFET is completely turned on (100% duty cycle) ...
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... The PCB layout is a very important converter design step to make sure the designed converter works well, especially under the high current high switching frequency condition. For ISL9103, ISL9103A, the power loop is composed of the output inductor L, the output capacitor C the PGND pin necessary to make the power loop as small as possible and the connecting traces among them should be direct, short and wide ...
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... L6.1.6x1.6 6 LEAD ULTRA THIN DUAL FLAT NO-LEAD COL PLASTIC PACKAGE (UTDFN COL) Rev 1, 11/07 1.60 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( TYPICAL RECOMMENDED LAND PATTERN 13 ISL9103, ISL9103A A PIN #1 INDEX AREA 0.5 ±0 MAX REF NOTES: 1 ...