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  • Freescale
  • Analog and Power Management
  • Power Management
  • Switching Regulator

 Switching Regulator
 
MC3471X

The switching regulator is a high-efficiency synchronous buck and or boost regulator, with integrated N-channel power MOSFETs to provide protection features and to allow space-efficient, compact design. These power management integrated circuit (PMIC) devices incorporate many advanced features, including precisely maintained up/down power sequencing designed to ensure the proper operation and protection of the CPU and power system. These capabilities are made possible by Freescale Semiconductor's SMARTMOS™ technology.


Datasheet/ Part Data Hide
Order Hide
Buy Direct
Distributor
Sample
Product Page Status Hide
ACTIVE
ARCHIVED
Analog Configuration Hide
LINEAR REGULATORS
PMUIC
POWERTRAIN CONTROL
SWITCHING REGULATORS
Num. of Linear/LDO Regulators Hide
1
2
3
5
Number of Regulators-Buck Switching Hide
1
2
3
4
Number of Regulators-Boost Switching Hide
0
1
4
Output Voltage Hide
-9.0 ADJ UP
1.2
1.5 ADJ DOWN
1.8
1.8 ADJ DOWN
2.6
2.8 ADJ DOWN
3.3
3.3 ADJ DOWN
3.6 ADJ DOWN
5.0
5.0 ADJ DOWN
5.25 ADJ DOWN
15.0 ADJ DOWN
Output Current Hide
0.01
0.03
0.04
0.06
0.08
0.1
0.15
0.2
0.3
0.4
0.5
0.55
0.6
1.25
1.4
1.5
2
3
3.5
5
to
Supply Voltage Hide
0.9
1.5
2.7
2.8
3
3.6
4.5
6
to
Supply Voltage Hide
2.2
4.2
5.5
6
18
26.5
to
Interface and Input Control Hide
I2C
PARALLEL
SPI
Ambient Operating Temperature (Ta) Hide
-40
-25
-20
-10
Ambient Operating Temperature (Ta) Hide
65
85
125
Protection Hide
N/A
OUTPUT CURRENT
OVER CURRENT
OVER TEMPERATURE
OVER VOLTAGE PROTECT
OVERVOLTAGE
REVERSE BATTERY
SHORT CIRCUIT
THERMAL SHUTDOWN
UNDERVOLTAGE
UNDERVOLTAGE DETECT
UNDERVOLTAGE LOCK OUT
Diagnostics Hide
NONE
PARALLEL
STATUS FLAG
STATUS REPORTING
Additional Features - Power Management Hide
ADJUSTABLE OSCILLATORS
DISABLE DC - DC
INTERNAL POWER MOSFET
KEEP-ALIVE RESET
MAIN AND SENSOR SUPPLY ENABLE PI
OUTPUT VOLTAGE FEEDBACK
POWER GOOD HIGH AND LOW
POWER SEQUENCING
RESET
SLEEP MODE
STOP MODE
VOLTAGE MARGINING
VOUT SET BY SERIAL INPUT
WATCHDOG
2X 5V SENSOR SUPPLY OUTPUTS
4 PROGRAMMABLE WAKEUPS
Download Hide
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Product (# of Parts)
Filter Datasheet/ Part Data
Filter Order
Description
Filter Product Page Status
Replacement Part
Filter Analog Configuration
Filter Num. of Linear/LDO Regulators
Filter Number of Regulators-Buck Switching
Filter Number of Regulators-Boost Switching
Filter Regulator
Output Voltage
Filter Regulator
Output Current
(A)
Filter Supply Voltage
(Min)
(V)
Filter Supply Voltage
(Max)
(V)
Filter Interface and Input Control
Filter Ambient Operating Temperature (Ta)
(Min)
(°C)
Filter Ambient Operating Temperature (Ta)
(Max)
(°C)
Filter Protection
Filter Diagnostics
Filter Additional Features - Power Management
More
MC33730 (2) Featured Product
DataSheetPart Number Table
Distributor
Buy Direct
Sample
 Switch Mode Power Supply with Multiple Linear Regulators Active - Linear Regulators
Switching Regulators
Powertrain Control		 5 1 0 5.0
3.3 ADJ down
5.0		 0.15
0.04
3.5		 4.5 26.5 Parallel -40 125 Undervoltage Lock Out
Reverse Battery
Over Voltage Protect		 None Adjustable Oscillators
Power Sequencing
MC33998 (4)
DataSheetPart Number Table
Distributor
 
 
 2.6/5.0V Switching Power Supply Active - Switching Regulators 2 3 0 2.6
2.6
5.0
5.0		 0.4
0.01
1.4
0.2		 6 26.5 Parallel -40 125 Undervoltage Lock Out
Output Current		 Status Reporting
None		 Keep-Alive Reset
Reset
2x 5V Sensor Supply Outputs
Power Sequencing
Main and Sensor Supply Enable Pi
MC34700 (2)
DataSheetPart Number Table
Distributor
Buy Direct
Sample
 9-18V Four Output, Multi-Purpose Switching Power Supply Active - Switching Regulators
Linear Regulators		 1 3 0 3.6 ADJ down
5.25 ADJ down
3.6 ADJ down		 0.4
1.5
1.25		 1.5 18 Parallel -40 85 Over Current
Undervoltage Detect
Short Circuit
Overvoltage		 Status Flag Power Sequencing
Disable DC - DC
MC34701 (4)
DataSheetPart Number Table
Distributor
 
 
 Microprocessor Power Supply (1.5 A) Active - Switching Regulators 1 1 0 5.0 ADJ down
5.0 ADJ down		 1.5
2		 2.8 6 Parallel
I2C		 -40 85 Over Temperature
Undervoltage Lock Out
Over Current		 None Reset
Power Sequencing
Watchdog
Output Voltage Feedback
Voltage Margining
MC34702 (4)
DataSheetPart Number Table
Distributor
 
 
 Microprocessor Power Supply (3.0 A) Active - Switching Regulators 1 1 0 5.0 ADJ down
5.0 ADJ down		 2
3		 2.8 6 I2C
Parallel		 -40 85 Undervoltage Lock Out
Over Temperature
Over Current		 None Watchdog
Voltage Margining
Reset
Power Sequencing
Output Voltage Feedback
MC34704 (4)
DataSheetPart Number Table
Distributor
Buy Direct
Sample
 Multi-channel Power Management IC (PMIC) Active - Switching Regulators
PMUIC		 - 4 4
1		 5.0
3.6 ADJ down
1.8 ADJ down
3.6 ADJ down
15.0 ADJ down
-9.0 ADJ up
15.0 ADJ down		 0.5
0.5
0.55
0.3
0.06
0.06
0.03		 2.7 5.5 I2C
Parallel		 -20 85 Overvoltage
Over Current
Undervoltage Lock Out
Short Circuit
Undervoltage Detect		 Status Reporting -
MC34712 (2)
DataSheetPart Number Table
Distributor
Buy Direct
Sample
 3.0A 1.0MHz Fully Integrated DDR Switch-Mode Power Supply Active - Switching Regulators - 1 0 1.5 ADJ down 3 3 6 Parallel -40 85 Short Circuit
Overvoltage
Over Current
Undervoltage
Thermal Shutdown		 Parallel Disable DC - DC
Power Good High and Low
MC34713 (2)
DataSheetPart Number Table
Distributor
Buy Direct
Sample
 5.0A 1.0MHz Fully Integrated Single Switch-Mode Power Supply Active - Switching Regulators - 1 0 3.3 ADJ down 5 3 6 Parallel -40 85 Short Circuit
Overvoltage
Over Current
Undervoltage
Thermal Shutdown		 Parallel Disable DC - DC
Power Good High and Low
MC34716 (2)
DataSheetPart Number Table
Distributor
Buy Direct
Sample
 1.0 MHz Dual Switch-Mode DDR Power Supply Active - Switching Regulators - 2 0 1.5 ADJ down
3.3 ADJ down		 3
5		 3 6 Parallel -40 85 Short Circuit
Overvoltage
Over Current
Undervoltage
Thermal Shutdown		 Parallel Disable DC - DC
Power Good High and Low
MC34717 (2)
DataSheetPart Number Table
Distributor
Buy Direct
Sample
 5.0 A 1.0 MHz Fully Integrated Dual Switch-Mode Power Supply Active - Switching Regulators - 2 0 3.3 ADJ down 5 3 6 Parallel -40 85 Overvoltage
Over Current
Undervoltage
Thermal Shutdown
Short Circuit		 Parallel Power Good High and Low
Disable DC - DC
MC34726 (3)
DataSheetPart Number Table
Distributor
 
Sample
 300mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode Active - Switching Regulators - 1 - 1.8
1.2
3.3		 0.3
0.3
0.3		 2.7
3.6		 5.5 Parallel -25 85 Over Current
Thermal Shutdown		 - -
MC34727 (3)
DataSheetPart Number Table
Distributor
 
Sample
 600mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode Active - Switching Regulators - 1 - 3.3
1.8
1.2		 0.6
0.6
0.6		 3.6
2.7		 5.5 Parallel -25 85 Over Current
Thermal Shutdown		 - -
MPC18730 (2)
DataSheetPart Number Table
Distributor
Buy Direct
Sample
 1.15V/2.4V 2-CH DC to DC converters with 3 low dropout regulators Active - Linear Regulators
Switching Regulators		 3 2 0 2.8 ADJ down
2.8 ADJ down
3.3 ADJ down
1.5 ADJ down		 0.06
0.08
0.1
0.08		 0.9 2.2
4.2		 SPI -10 65 N/A None Vout Set by Serial Input
Power Good High and Low
Sleep Mode
Stop Mode
Internal Power MOSFET
4 Programmable Wakeups


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