FAN5233MTC

FAN5233MTC Datasheet

FAN5233

Part	Datasheet
FAN5233MTC	FAN5233MTC (pdf)

Related Parts	Information
FAN5233MTCX	FAN5233MTCX

PDF Datasheet Preview
FAN5233 System Electronics Regulator for Mobile PCs • 5.4V to 24V input voltage range • Five regulated outputs • 5V 5A PWM • 3.3V 5A PWM • 5V 50mA Always On Linear • 12V/Adjustable 120mA Boost PWM • >96% • Hysteretic mode for light loads • PWM mode for normal loads • Main regulators switch out of phase • 300kHz frequency switching • RDS ON current sense over-current • Reduced BOM Max. • Optional current sense resistor for precision over-current detect • Power Good signal for all voltages • Input under-voltage lock-out UVLO • Thermal shutdown • ACPI compliant • 24-pin TSSOP • Notebook PCs • Web tablets • Battery-powered instruments The FAN5233 is a high and high precision multiple-output voltage regulator for notebook PC and other similar battery-powered applications. It integrates three pulse-width modulated PWM switching regulator controllers and one linear regulator to convert 5.4V-to-24V notebook battery power into the voltage used by the circuitry that surrounds the microprocessor in these systems. The two primary PWM controllers in the FAN5233 use synchronous-mode to provide 3.3V and 5V at over 5A each. They switch out-of-phase to minimize input ripple-current. Utilization of both input and output voltage feedback in a current-mode control allows for fast and stable loop response over a wide range of input and output variations. PWM control in normal operation and hysteretic control under light load provides of greater than 95% over a wide range of input and output variations. The third PWM controller generates 12V at 120mA. A proprietary technology is used for sensing of output current using the RDS ON of the external MOSFETs, eliminating external current sense resistors which saves board space and reduces BOM cost. One integrated linear regulator provides stand-by ALWAYS-ON power at 5V for light 50mA loads. Additional FAN5233 features include over-voltage, undervoltage, and over-current monitors and thermal shutdown protection. A single Power-Good signal is issued when soft start is completed and all outputs are within ±10% of their settings. FAN5233 5V-ALWAYS 3.3V 5A + 50mA SDN3.3 PGOOD Vin = 5.4-24V FAN5233 1 VIN CPUMP5 24 2 FPWM HSD5 23 3 CPUMP3.3 SW5 22 4 HSD3.3 ISEN5 21 5 SW3.3 6 5V-ALW 7 LSD3.3 8 GND3.3 9 ISEN3.3 LSD5 20 GND5 19 VFB5 18 SDN5 17 SW12 16 10 VFB3.3 11 SDN3.3 12 PGOOD VFB12 15 SGND 14 SDWN 13 SDN5 VFB12 SDWN PRODUCT SPECIFICATION 5V-ALWAYS 5V 5A + 12V 120mA + Pin Assignments VIN FPWM CPUMP3.3 HSD3.3 SW3.3 5V-ALWAYS LSD3.3 GND3.3 ISEN3.3 VFB3.3 SDN3.3 PGOOD Top View CPUMP5 HSD5 SW5 ISEN5 LSD5 GND5 VFB5 SDN5 SW12 VFB12 SGND SDWN Pin Description Pin Name VIN FPWM Ordering Information Product Number FAN5233MTC FAN5233MTCX Temperature Range -20°C to 85°C -20°C to 85°C Package TSSOP-24 TSSOP-24 PRODUCT SPECIFICATION Packing Rails Tape and Reel DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, or c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 1/22/02 0.0m 002 Stock#DS30005233 2001 Fairchild Semiconductor Corporation

PDF Datasheet Preview

FAN5233

System Electronics Regulator for Mobile PCs
• 5.4V to 24V input voltage range
• Five regulated outputs
• 5V 5A PWM
• 3.3V 5A PWM
• 5V 50mA Always On Linear
• 12V/Adjustable 120mA Boost PWM
• >96%
• Hysteretic mode for light loads
• PWM mode for normal loads
• Main regulators switch out of phase
• 300kHz frequency switching
• RDS ON current sense over-current
• Reduced BOM Max.
• Optional current sense resistor for precision over-current
detect
• Power Good signal for all voltages
• Input under-voltage lock-out UVLO
• Thermal shutdown
• ACPI compliant
• 24-pin TSSOP
• Notebook PCs
• Web tablets
• Battery-powered instruments

The FAN5233 is a high and high precision multiple-output voltage regulator for notebook PC and other similar battery-powered applications. It integrates three pulse-width modulated PWM switching regulator controllers and one linear regulator to convert 5.4V-to-24V notebook battery power into the voltage used by the circuitry that surrounds the microprocessor in these systems.

The two primary PWM controllers in the FAN5233 use synchronous-mode to provide 3.3V and 5V at over 5A each. They switch out-of-phase to minimize input ripple-current. Utilization of both input and output voltage feedback in a current-mode control allows for fast and stable loop response over a wide range of input and output variations. PWM control in normal operation and hysteretic control under light load provides of greater than 95% over a wide range of input and output variations. The third PWM controller generates 12V at 120mA. A proprietary technology is used for sensing of output current using the RDS ON of the external MOSFETs, eliminating external current sense resistors which saves board space and reduces BOM cost.

One integrated linear regulator provides stand-by ALWAYS-ON power at 5V for light 50mA loads. Additional FAN5233 features include over-voltage, undervoltage, and over-current monitors and thermal shutdown protection. A single Power-Good signal is issued when soft start is completed and all outputs are within ±10% of their settings.

FAN5233
5V-ALWAYS
3.3V 5A +
50mA

SDN3.3 PGOOD

Vin = 5.4-24V

FAN5233
1 VIN

CPUMP5 24
2 FPWM

HSD5 23
3 CPUMP3.3

SW5 22
4 HSD3.3

ISEN5 21
5 SW3.3 6 5V-ALW 7 LSD3.3 8 GND3.3 9 ISEN3.3

LSD5 20 GND5 19 VFB5 18 SDN5 17 SW12 16
10 VFB3.3 11 SDN3.3 12 PGOOD

VFB12 15 SGND 14 SDWN 13

SDN5 VFB12 SDWN

PRODUCT SPECIFICATION
5V-ALWAYS 5V 5A +
12V 120mA +

Pin Assignments

VIN FPWM

CPUMP3.3 HSD3.3 SW3.3
5V-ALWAYS LSD3.3 GND3.3 ISEN3.3 VFB3.3 SDN3.3 PGOOD

Top View

CPUMP5 HSD5 SW5 ISEN5 LSD5 GND5 VFB5

SDN5 SW12 VFB12 SGND

SDWN

Pin Description

Pin Name VIN FPWM
Ordering Information

Product Number FAN5233MTC FAN5233MTCX

Temperature Range -20°C to 85°C -20°C to 85°C

Package TSSOP-24 TSSOP-24

PRODUCT SPECIFICATION

Packing Rails

Tape and Reel

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:

Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, or c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.

A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
1/22/02 0.0m 002 Stock#DS30005233 2001 Fairchild Semiconductor Corporation

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Datasheet ID: FAN5233MTC 513926