Switching Converters, Regulators & Controllers 600mA BUCK REGULATOR INTEGRATED INDUCTOR

EP5368QI

Manufacturer Part NumberEP5368QI
DescriptionSwitching Converters, Regulators & Controllers 600mA BUCK REGULATOR INTEGRATED INDUCTOR
ManufacturerEnpirion
EP5368QI datasheet
 


Specifications of EP5368QI

Output Voltage0.8 V to 3.3 VOutput Current600 mA
Input Voltage2.4 V to 5.5 VSwitching Frequency4 MHz
Operating Temperature Range- 40 C to + 85 CMounting StyleSMD/SMT
Duty Cycle (max)100 %Package / CaseQFN-16
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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Description
The EP5368QI is a synchronous buck converter
with
integrated
Inductor,
MOSFETS, and Compensation providing the
smallest possible solution size. The EP5368QI
requires only two small MLCC capacitors to
make a complete solution.
inductor greatly simplifies design, contains noise,
reduces part count, and reduces solution
footprint. Low output ripple ensures compatibility
with RF systems.
The EP5368QI operates at a switching frequency
of 4 MHz, enabling this unprecedented level of
integration and small external components. Type
III voltage mode control is used to provide high
noise immunity and wide control loop bandwidth.
The device can source 600mA of current over
the industrial temperature range and up to
700mA over the commercial temperature range.
The small footprint makes this part ideal for
space constrained applications. Output voltage
is programmed via a 3-pin VID selector providing
seven pre-programmed output voltages along
with an option for external resistor divider.
Figure 1: Features INTEGRATED INDUCTOR
TECHNOLOGY
03260
600mA Synchronous Buck Regulator
RoHS Compliant; Halogen Free
Features
Integrated Inductor
PWM
controller,
3mm x 3mm x 1.1mm QFN package
Only two low cost MLCC caps required
4 MHz switching frequency
High efficiency, up to 94%
Integration of the
Up to 700mA continuous output current
Wide 2.4V to 5.5V input range
V
Range 0.603V to V
OUT
100% duty cycle capable
Less than 1 A standby current
Low V
Short circuit and over current protection
UVLO and thermal protection
Stable over entire operating range
RoHS compliant; MSL 3 260° C reflow
Application
Noise sensitive RF applications
Area constrained applications
Smart phones and PDAs
Personal Media Players
Advanced Mobile Processors, DSP, IO,
Memory, Video, Multimedia Engines
V
IN
4.7 F
0603
Voltage
Select
Figure 2: Typical Application Schematic
09/23/2010
EP5368QI
with Integrated Inductor
– 0.4V
IN
ripple for RF compatibility
OUT
V
ENABLE
Sense
V
V
in
out
22 F
EP5368QI
0805
V
FB
V
S0
V
S1
V
S2
GND
www.enpirion.com
V
OUT
Rev: F

EP5368QI Summary of contents

  • Page 1

    ... Description The EP5368QI is a synchronous buck converter with integrated Inductor, MOSFETS, and Compensation providing the smallest possible solution size. The EP5368QI requires only two small MLCC capacitors to make a complete solution. inductor greatly simplifies design, contains noise, reduces part count, and reduces solution footprint ...

  • Page 2

    ... Ordering Information Temp Rating Part Number (° C) EP5368QI -40 to +85 EP5368QI-E EP5368QI Evaluation Board Pin Description PIN NAME NO CONNECT – These pins should not be electrically connected to each other or to any external signal, voltage, or ground. One or more of these pins may be connected internally. 15, 16 These pins must be soldered to the PCB ...

  • Page 3

    ... Thermal Resistance: Junction to Ambient (0 LFM) Thermal Overload Trip Point Thermal Overload Trip Point Hysteresis Enpirion 2010 all rights reserved, E&OE 03260 Exposure to absolute maximum rated conditions for SYMBOL – SYMBOL SYMBOL 3 09/23/2010 EP5368QI Functional operation beyond the MIN MAX UNITS V -0.3 7 -0 ...

  • Page 4

    ... IN OUT (Application Circuit Figure 6) Enable = Low 2.4V ≤V ≤5.5V, 0.6V ≤ V ≤ 3. Pin = Low Pin = High VID programming mode VFB programming mode 4 09/23/2010 EP5368QI = 3.6V IN MIN TYP MAX UNITS 2.4 5.5 V 2.2 2.3 V 2.1 2.2 V 400 500 m 0.603 ...

  • Page 5

    ... Load Current (A) Efficiency Versus Load 3.7V (from top to bottom) 2.5V, 1.8V, 1.5V, 1.2V. OUT Transient 3.6V 1.2V, Load = 0-500mA IN OUT Shutdown 3.6V 1.5V, Load = 500mA IN OUT 5 09/23/2010 EP5368QI www.enpirion.com Rev: F ...

  • Page 6

    ... Voltage Ripple 3.3V 1.8V, Load = 0mA IN OUT 0805, 2.0mV/Div. OUT Enpirion 2010 all rights reserved, E&OE 03260 Voltage Ripple 3.3V OUT 0805, 2.0mV/Div. OUT Voltage Ripple 3.3V OUT 0805, 2.0mV/Div. OUT 6 09/23/2010 EP5368QI = 1.8V, Load = 600mA = 1.8V, Load = 600mA www.enpirion.com Rev: F ...

  • Page 7

    ... Sawtooth Generator Enpirion 2010 all rights reserved, E&OE 03260 P-Drive Logic N-Drive Compensation Network (-) Error Amp (+) DAC VREF Figure 4: Functional Block Diagram 7 09/23/2010 EP5368QI V IN NC(SW) V OUT GND V SENSE Switch V FB Voltage Select Package Boundry VS0 VS1 VS2 www.enpirion.com Rev: F ...

  • Page 8

    ... When VOUT is programmed using a preset voltage in VID mode, the device has a constant slew rate. When the EP5368QI is configured in external resistor divider mode, the device has a constant VOUT ramp time. Output voltage slew rate and ramp time is given in the Electrical Characteristics Table. ...

  • Page 9

    ... Application Information Output Voltage Select To provide the highest degree of flexibility in choosing output voltage, the EP5368QI uses a 3 pin VID, or Voltage ID, output voltage select arrangement. This allows the designer to choose one of seven preset voltages use an external voltage divider ...

  • Page 10

    ... OUT to V -0.4V. IN Enpirion 2010 all rights reserved, E&OE 03260 Dynamically Adjustable Output The EP5368QI is designed to allow for V OUT dynamic switching between the predefined VID 3.3V voltage levels The inter-voltage slew rate is 2.5V optimized to prevent excess undershoot or 1 ...

  • Page 11

    ... C = 15pF 0402 MLCC capacitor. a out Then 0805 can be programmed over the range of OUT 0.603V not connect the sense line. NOTE: Stability cannot be assured if these guidelines are not followed. Figure 7: EP5368QI Package PCB Footprint 11 09/23/2010 EP5368QI is given as 501 603 OUT -0.4V. IN www.enpirion.com ...

  • Page 12

    ... Enpirion products are not authorized for use in nuclear control systems, as critical components in life support systems or equipment used in hazardous environment without the express written authority from Enpirion.  Enpirion 2010 all rights reserved, E&OE 03260 Figure 8: EP5368QI Package Dimensions 12 09/23/2010 EP5368QI www ...