Product Summary
The ISL6236 is a dual step-down, switch-mode power-supply (SMPS) controller. It generates logic-supply voltages in battery-powered systems. The ISL6236 include two pulse-width modulation (PWM) controllers, 5V/3.3V and 1.5V/1.05V. The ISL6236 features a linear regulator providing 3.3V/5V, or adjustable from 0.7V to 4.5V output via LDOREFIN. The linear regulator provides up to 100mA output current with automatic linear-regulator bootstrapping to the BYP input. When in switchover, the LDO output can source up to 200mA. The ISL6236 includes on-board power-up sequencing, the power-good (POK) outputs, digital soft-start, and internal soft-stop output discharge that prevents negative voltages on shutdown.
Parametrics
ISL6236 absolute maximum ratings: (1)VIN, EN LDO to GND: -0.3V to +27V; (2)BOOT to GND: -0.3V to +33V; (3)BOOT to PHASE: -0.3V to +6V; (4)VCC, EN, SKIP, TON, PVCC, POK to GND: -0.3V to +6V; (5)LDO, FB1, REFIN2, LDOREFIN to GND: -0.3V to (VCC + 0.3V); (6)OUT, SECFB, VREF3, REF to GND: -0.3V to (VCC + 0.3V; (7)UGATE to PHASE: -0.3V to (PVCC + 0.3V); (8)ILIM to GND: -0.3V to (VCC + 0.3V); (9)LGATE, BYP to GND: -0.3V to (PVCC + 0.3V); (10)PGND to GND: -0.3V to +0.3V; (11)LDO, REF, VREF3 Short Circuit to GND: Continuous; (12)VCC Short Circuit to GND: 1s; (13)LDO Current (Internal Regulator) Continuous: 100mA; (14)LDO Current (Switched Over to OUT1) Continuous: +200mA.
Features
ISL6236 features: (1)Wide Input Voltage Range 5.5V to 25V; (2)Dual Fixed 1.05V/3.3V and 1.5V/5.0V Outputs or ; (3)Adjustable 0.7V to 5.5V (SMPS1) and 0V to 2.5V (SMPS2), ±1.5%Accuracy; (4)Secondary Feedback Input (Maintains Charge Pump Voltage); (5)1.7ms Digital Soft-Start and Independent Shutdown; (6)Fixed 3.3V/5.0V, or Adjustable Output 0.7V to 4.5V, ±1.5% (LDO): 200mA; (7)3.3V Reference Voltage ±2.0%: 5mA; (8)2.0V Reference Voltage ±1.0%: 50μA; (9)Constant ON-time Control with 100ns Load-Step Response; (10)Frequency Selectable; (11)rDS(ON) Current Sensing; (12)Programmable Current Limit with Foldback Capability; (13)Selectable PWM, Skip or Ultrasonic Mode; (14)BOOT Voltage Monitor with Automatic Refresh; (15)Independent POK1 and POK2 Comparators; (16)Soft-Start with Pre-Biased Output and Soft-Stop; (17)Independent ENABLE.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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ISL6236 |
Other |
Data Sheet |
Negotiable |
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ISL6236A |
Other |
Data Sheet |
Negotiable |
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ISL6236AIRZ |
IC MAIN PWR CTRLR QUAD 32-QFN |
Data Sheet |
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ISL6236AIRZ-T |
IC MAIN PWR CTRLR QUAD 32-QFN |
Data Sheet |
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ISL6236EVAL1 |
EVAL BOARD 1 FOR ISL6236 |
Data Sheet |
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ISL6236EVAL2 |
EVAL BOARD 2 FOR ISL6236 |
Data Sheet |
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ISL6236IRZAR5281 |
IC MAIN PWR CTRLR QUAD 32-QFN |
Data Sheet |
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ISL6236IRZA-TKR5281 |
IC QUAD OUT POWER CONTROL 32-QFN |
Data Sheet |
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