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Part Number: MC34710
Description: The 34710 is a dual-output power regulator IC integrating a switching regulator, linear regulator, sup...
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MC34710
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General Description
MC34710 General Description
The 34710 is a dual-output power regulator IC integrating a switching regulator, linear regulator, supervisory circuitry, and power supply sequencing circuitry. With a wide operating input voltage range of 13 V to 32 V and 0°C to 85°C temperature limits, the 34710 is applicable to many commercial and industrial applications using embedded MCUs.
A user-selectable 5.0 V / 3.3 V buck DC-DC switching regulator is provided for board-level I/O and user circuitry up to 700 mA. Thelinear regulator provides MCU core supply voltages selectable aseither 3.3V, 2.5V, 1.8V, or 1.5V at currents up to 500 mA. The switching and linear regulator output voltages are set via three digital input mode terminals.
MC34710 Maximum Ratings
| Rating | Symbol | Max | Unit |
| GLOBAL ABSOLUTE MAXIMUM RATINGS | |||
| Input Power Supply Voltage IB+ = 0 A |
VB+ | -0.3 to 36 | V |
| Terminal Soldering Temperature (1) | TSOLDER | 260 | °C |
| Power Dissipation (2) | PD | 3.0 | W |
| ESD Standoff Voltage Non-Operating, Unbiased, Human Body Model (3) |
VESD1 | ±2000 | V |
| Thermal Resistance Junction-to-Ambient (4) Junction-to-Ambient (2) Junction-to-Exposed-Pad |
RJA RJA RJC |
45 25 2.0 |
°C/W |
| GLOBAL OPERATING RATINGS | |||
| Operating Ambient Temperature | TA | 0 to 85 | °C |
| Operating Junction Temperature | TJ | 0 to 105 | °C |
| Input Power Supply Voltage IB+ = 0.0 A to 3.0 A |
VB+ | 13 to 32 | V |
| Quiescent Bias Current from B+ (5) VB+ = 13 V to 32 V |
IB+(q) | 7.5 | mA |
| VI /O SWITCHING REGULATOR (6) | |||
| Maximum Output Voltage Startup Overshoot (COUT = 330 F) Mode0 = 0 Mode0 = Open |
VI / O(STARTUP | 5.4 3.6 |
V |
| Maximum Output Current TA = 0°C to 105°C |
IVI/O | 700 | mA |
1.Soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may cause malfunction or permanent damage to the device.
2.With 2.0 in2 of copper heatsink.
3.ESD1 testing is performed in accordance with the Human Body Model (CZAP = 100 pF, RZAP = 1500 ).
4.With no additional heatsinking.
5.Maximum quiescent power dissipation is 0.25 W.
6.13 V VB+ 32 V and - 20°C TJ 145°C unless otherwise noted.
MC34710 Features
· Efficient 5.0 V / 3.3 V Buck Regulator
· Low Noise User-Selectable 3.3 V / 2.5 V / 1.8 V / 1.5 V LDO Linear Regulator
· On-Chip Thermal Shutdown Circuitry
· Supervisory Functions (Power-ON Reset and Error Reset Circuitry)
· Sequenced I/O and Core Voltages
· Pb-Free Packaging Designated by Suffix Code EW
· Low Noise User-Selectable 3.3 V / 2.5 V / 1.8 V / 1.5 V LDO Linear Regulator
· On-Chip Thermal Shutdown Circuitry
· Supervisory Functions (Power-ON Reset and Error Reset Circuitry)
· Sequenced I/O and Core Voltages
· Pb-Free Packaging Designated by Suffix Code EW
MC34710 Connection Diagram
MC34710
PDF/DataSheet Download
- Datasheet: MC34710
- File Size: 560828 KB
- Manufacturer: FREESCALE
- Click here to Download
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