Enpirion® Power Datasheet
EP5358LUA/HUA 600mA PowerSoC
Voltage Mode Synchronous
PWM Buck with Integrated Inductor
www.altera.com/enpirion
Description
The EP5358LUA and EP5358HUA are 600mA
PowerSoCs that are AEC-Q100 qualified for
automotive applications. T he EP5358xUA (x = L or H)
is rated for up to 600m A of cont inuous output current.
The EP5358xUA integrates MOSFET switches,
control, compensation, and the magnetics in an
advanced 2.5mm x 2.25mm micro-QFN Package.
Integrated magnetics enables a tiny solution footprint,
low output ripple, low part-count, and high reliability,
while maintaining high efficiency. The complete
solution can be implemented in as little as 14mm2.
The EP5358xUA uses a 3-pin VID to easily select the
output voltage setting. Output voltage settings are
available in 2 optimized ranges providing coverage
for typical VOUT settings.
The VID pins can be changed on the fly for fast
dynamic voltage scaling. EP5358LUA further has the
option to use an external voltage divider.
The EP5358xUA is a perfect solution for noise
sensitive and space constrained applications that
require high efficiency.
Features
• Integrated Inductor Technology
• -40°C to +105°C Ambient Temperature Range
• AEC-Q100 Qualified for Automotive Applications
• 2.5mm x 2.25mm x 1.1mm uQFN Package
• Total Solution Footprint 14mm2
• Low VOUT Ripple f or RF Compatibility
• High efficiency, up to 93%
• Up to 600mA Continuous Output Current
• 5 MHz Switching Frequency
• 3 pin VID for Glitch Free Voltage Scaling
• VOUT Range 0.6V to VIN – 0.25V
• Short Circuit and Over Current Protection
• UVLO and Thermal Protection
• IC Level Reliability in a PowerSOC Solution
Applications
• Automotive Applications
• Wireless and RF Applications
• Small Form Factor Optical Modules
• Low noise FPGA IO and Transceivers
• Advanced Low Power Processors, DSP, IO,
Memory, Video, Multimedia Engines
VOUT
VIN
10µF
0805
X7R
4.7µF
0603
X7R
VOUTPVIN
AVIN
PGND AGND
VSENSE
EP5358xUA
VFB
VS0
VS1
VS2
ENABLE
Figure 1. Simplified Applications Circuit
Figure 2. Highest Efficiency in Smallest Solution Size
35
40
45
50
55
60
65
70
75
80
85
90
95
0100 200 300 400 500 600
EFFICIENCY (%)
OUTPUT CURRENT (mA)
Efficiency vs. I
OUT
(V
IN
= 5.0V)
VOUT = 3.3V
CONDITIONS
VIN = 5V
14mm2
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 2
Ordering Information
Part Number
Package Markings
TA (°C)
Package Description
EP5358LUA
BKXX
-40 to +105
16-pin (2.5mm x 2.25mm x 1.1mm) uQFN
EP5358HUA
BNXX
-40 to +105
16-pin (2.5mm x 2.25mm x 1.1mm) uQFN
EVB-EP5358xUA
QFN Evaluation Board
Packing a nd Marking Information: www.altera.com/support/reliability/packing/rel-packing-and-marking.html
Pin Assignments (Top View)
Figure 3 . EP5358LUA Pin Out Diagram (Top View) Figure 4. EP5358HUA Pin Out Diagram (Top View)
NOTE A: NC pins are not to be electrically connected to each other or to any external signal, ground, or voltage.
However, they must be soldered to the PCB. Failure to follow this guideline may result in part malfunction or damage.
NOTE B: White ‘dot’ on top left is pin 1 indicator on top of the device package.
Pin Description
PIN
NAME
FUNCTION
PIN
NAME
FUNCTION
1, 15, 16 NC(SW)
NO CONNECT – These pins are internally connected to the common switching node of the
internal MOSFETs. NC (SW) pins are not to be electrically connected to any external signal,
ground, or voltage. However, they must be soldered to the PCB. Failure to follow this guideline
may result in part malfunction or damage to the device.
2,3 PGND
Power ground. Connect these pins together and to the ground electrode of the Input and
output filter capacitors.
4 VFB/NC
EP5358LUA: Feedback pin for external divider option.
EP5358HUA: No Connect
5
VSENSE
Sense pin for preset output voltages. Refer to application section for proper configuration.
6 AGND
Analog ground. This is the quiet ground for the internal control circuitry, and the ground return
for external feedback voltage divider
7, 8
VOUT
Regulated Out put Vo lta ge. Refer to application section for proper layout and decoupling.
9, 10, 11 VS2,
VS1,
VS0
Output voltage select. VS2 = pin 9, VS1 = pin 10, VS0 = pin 11.
EP5358LUA: Selects one of seven preset output voltages or an external resistor divider.
EP5358HUA: Selects one of eight preset output voltages.
(Refer to section on output voltage select for more details.)
NC(SW)
PGND
VFB
VSENSE
AGND
1
2
3
4
5
6
PVIN
AVIN
ENABLE
VS0
VS2
14
13
12
11
10
9
NC(SW)
NC(SW)
16 15
PGND
VOUT
VOUT
VS1
78
NC(SW)
PGND
NC
VSENSE
AGND
1
2
3
4
5
6
PVIN
AVIN
ENABLE
VS0
VS2
14
13
12
11
10
9
NC(SW)
NC(SW)
16 15
PGND
VOUT
VOUT
VS1
78
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 3
PIN
NAME
FUNCTION
12
ENABLE
Output Enable. Enable = logic high; Disable = logic low
13
AVIN
Input power supply for the controller circuitry.
14
PVIN
Input Voltage for the MOSFET switches.
Absolute Maximum Ratings
CAUTION: Absolute Maximum ratings are stress ratings only. Functional operation beyond the recommended operating
conditions is not implied. Stress beyond the absolute maximum ratings may impair device life. Exposure to absolute
maximum rated conditions for extended periods may affect device reliability.
PARAMETER
SYMBOL
MIN
MAX
UNITS
Input Supply Voltage VIN -0.3 6.0 V
Voltages on: ENABLE, V
SENSE
, V
SO
– V
S2
-0.3 VIN+ 0.3 V
Voltages on: VFB (EP5358LUA) -0.3 2.7 V
Maximum Operating Junction Temperature TJ-ABS 150 °C
Storage Temperature Range T
STG
-65 150 °C
Reflow Temp, 10 Sec, MSL3 JEDEC J-STD-020C 260 °C
ESD Rating (based on Human Body Mode) 2000 V
Recommended Operating Cond itions
PARAMETER
SYMBOL
MIN
MAX
UNITS
Input Voltage Range VIN 2.4 5.5 V
Operating Ambient Temperature
T
A
-40 +105 °C
Operating Junction Temperature T
J
-40 +125 °C
Thermal Characteristics
PARAMETER
SYMBOL
TYP
UNITS
Thermal Resistance: Junction to Ambient –0 LFM (Note 1) θJA 85 °C/W
Thermal Overload Trip Point TJ-TP +155 °C
Thermal Overload Trip Point Hysteresis 25 °C
Note 1: Based on a four layer copper board and proper thermal design per JEDEC EIJ/JESD51 standards.
Electrical Characteristics
NOTE: VIN=3.6V, Minimum and Maximum values are over opera tin g ambient temperature range unless otherwise noted.
Typical values are at TA = 25°C.
PARAMETER
SYMBOL
TEST CONDIT IONS
MIN
TYP
MAX
UNITS
Operating Input
Voltage VIN 2.4 5.5 V
Under Voltage Lock-
out – VIN Rising VUVLO_R 2.0 V
Under Voltage Lock-
out – V
IN
Falling VUVLO_F 1.9 V
Drop Out Resistance R
DO
Input to Output Resistance 350 500 mΩ
Output Voltage Range VOUT EP5358LUA (VDO = ILOAD X RDO)
EP5358HUA 0.6
1.8 VIN-VDO
3.3 V
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 4
PARAMETER
SYMBOL
TEST CONDIT IONS
MIN
TYP
MAX
UNITS
Operating Input
Voltage Range VIN 2.4 5.5 V
Under Voltage Lock-
out – VIN Rising VUVLO_R 2.0 V
Under Voltage Lock-
out – V
IN
Falling VUVLO_F 1.9 V
Drop Out Resistance RDO Input to Output Resistance in 100%
duty cycle operation. 350 500 mΩ
Output Voltage Range VOUT EP5358LUA (VDO = ILOAD X RDO)
EP5358HUA 0.6
1.8 VIN-VDO
3.3 V
Dynamic Voltage Slew
Rate (VID Change) VSLEW EP5358LUA
EP5358HUA 4
8 V/ms
VID Pres et VOUT Initial
Accuracy ∆VOUT TA = 25°C, VIN = 3.6V;
ILOAD = 100mA ; 0.8V ≤ VOUT ≤
3.3V
-2 +2 %
Line Regulation ∆VOUT_LINE 2.4V ≤ VIN ≤ 5.5V; ILOAD = 0A 0.03 %/V
Load Regulation ∆VOUT_LOAD 0A ≤ ILOAD ≤ 600mA; VIN = 3.6V 0.48 %/A
Temperature Variation ∆VOUT_TEMP
L
-40°C ≤ TA ≤ +105°C 24 ppm/°C
Output Current Range IOUT 0 600 mA
Shut-down Current ISD Enable = Low 0.75 µA
OCP Threshold ILIM 2.4V ≤ VIN ≤ 5.5V
0.6V ≤ VOUT ≤ 3.3V 1.25 1.4 A
Feedback Pin Voltage
Initial Accuracy VFB TA = 25°C, VIN = 3.6V;
ILOAD = 100mA ;
0.8V ≤ VOUT ≤ 3.3V .588 0.6 0.612 V
Feedback Pin Input
Current IFB Note 1 <100 nA
VS0-VS2, Pin Logic
Low VVSLO 0.0 0.3 V
VS0-VS2, Pin Logic
High VVSHI 1.4 VIN V
VS0-VS2, Pin Input
Current IVSX Note 1 <100 nA
Enable Pin Logic Low VENLO 0.3 V
Enable Pin Logic High VENHI 1.4 V
Enable Pin Current I
ENABLE
Note 1 <100 nA
Operating Frequency FOSC 5 MHz
Soft Start Operation
Soft Start Slew Rate ∆VSS EP5358LUA (VID MODE)
EP5358HUA (VID MODE) 2.6
5.2 4
8 5.4
10.8 V/ms
V
OUT
Rise Time T
RISE
EP5358LUA VFB MO D E 146 225 304 µs
Note 1: Parameter guaranteed by design and characterization.
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 5
Typical Performance Curves
40
45
50
55
60
65
70
75
80
85
90
95
100
0100 200 300 400 500 600
EFFICIENCY (%)
OUTPUT CURRENT (mA)
Efficiency vs. I
OUT
(V
IN
= 3.3V)
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 1.2V
VOUT = 1.0V
CONDITIONS
V
IN
= 3.3V
35
40
45
50
55
60
65
70
75
80
85
90
95
0100 200 300 400 500 600
EFFICIENCY (%)
OUTPUT CURRENT (mA)
Efficiency vs. I
OUT
(V
IN
= 5.0V)
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 1.2V
VOUT = 1.0V
CONDITIONS
VIN = 5V
0.980
0.985
0.990
0.995
1.000
1.005
1.010
1.015
1.020
0100 200 300 400 500 600
OUTPUT VOL TAGE ( V)
OUTPUT CURRENT (mA)
Output Voltage vs. Output Curr ent
VIN = 5.0V
VIN = 3.3V
CONDITIONS
V
OUT
= 1.0V
1.180
1.185
1.190
1.195
1.200
1.205
1.210
1.215
1.220
0100 200 300 400 500 600
OUTPUT VOL TAGE ( V)
OUTPUT CURRENT (mA)
Output Voltage vs. Output Curr ent
VIN = 5.0V
VIN = 3.3V
CONDITIONS
V
OUT
= 1.2V
1.480
1.485
1.490
1.495
1.500
1.505
1.510
1.515
1.520
0100 200 300 400 500 600
OUTPUT VOL TAGE ( V)
OUTPUT CURRENT (mA)
Output Voltage vs. Output Curr ent
VIN = 5.0V
VIN = 3.3V
CONDITIONS
V
OUT
= 1.5V
1.780
1.785
1.790
1.795
1.800
1.805
1.810
1.815
1.820
0100 200 300 400 500 600
OUTPUT VOL TAGE ( V)
OUTPUT CURRENT (mA)
Output Voltage vs. Output Curr ent
VIN = 5.0V
VIN = 3.3V
CONDITIONS
V
OUT
= 1.8V
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 6
Typical Performance Curves (Continued)
2.480
2.485
2.490
2.495
2.500
2.505
2.510
2.515
2.520
0100 200 300 400 500 600
OUTPUT VOL TAGE ( V)
OUTPUT CURRENT (mA)
Output Voltage vs. Output Curr ent
VIN = 5.0V
VIN = 3.3V
CONDITIONS
V
OUT
= 2.5V
3.280
3.285
3.290
3.295
3.300
3.305
3.310
3.315
3.320
0100 200 300 400 500 600
OUTPUT VOL TAGE ( V)
OUTPUT CURRENT (mA)
Output Voltage vs. Output Curr ent
VIN = 5.0V
CONDITIONS
V
OUT
= 3.3V
0.980
0.985
0.990
0.995
1.000
1.005
1.010
1.015
1.020
2.5 33.5 44.5 5
OUTPUT VOL TAGE ( V)
INPUT VOL TAGE ( V)
Output Voltage vs. Input Voltage
LOAD = 600mA
LOAD = 0A
CONDITIONS
VOUT_NOM = 1.0V
1.180
1.185
1.190
1.195
1.200
1.205
1.210
1.215
1.220
2.5 33.5 44.5 5
OUTPUT VOL TAGE ( V)
INPUT VOL TAGE ( V)
Output Voltage vs. Input Voltage
LOAD = 600mA
LOAD = 0A
CONDITIONS
VOUT_NOM = 1.2V
1.480
1.485
1.490
1.495
1.500
1.505
1.510
1.515
1.520
2.5 33.5 44.5 5
OUTPUT VOL TAGE ( V)
INPUT VOL TAGE ( V)
Output Voltage vs. Input Voltage
LOAD = 600mA
LOAD = 0A
CONDITIONS
VOUT_NOM = 1.5V
1.780
1.785
1.790
1.795
1.800
1.805
1.810
1.815
1.820
2.5 33.5 44.5 5
OUTPUT VOL TAGE ( V)
INPUT VOL TAGE ( V)
Output Voltage vs. Input Voltage
LOAD = 600mA
LOAD = 0A
CONDITIONS
VOUT_NOM = 1.8V
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 7
Typical Performance Curves (Continued)
2.480
2.485
2.490
2.495
2.500
2.505
2.510
2.515
2.520
33.5 44.5 5
OUTPUT VOL TAGE ( V)
INPUT VOL TAGE ( V)
Output Voltage vs. Input Voltage
LOAD = 600mA
LOAD = 0A
CONDITIONS
VOUT_NOM = 2.5V
3.200
3.220
3.240
3.260
3.280
3.300
3.320
3.340
3.360
3.380
3.400
55.1 5.2 5.3 5.4 5.5
OUTPUT VOL TAGE ( V)
INPUT VOL TAGE ( V)
Output Voltage vs. Input Voltage
LOAD = 600mA
LOAD = 0A
CONDITIONS
VOUT_NOM = 3.3V
0.980
0.990
1.000
1.010
1.020
1.030
-50 -30 -10 10 30 50 70 90 110
OUTPUT VOL TAGE ( V)
AMBIENT TEMPER ATURE (°C)
Output Voltage vs. Temperature
LOAD = 600mA
LOAD = 0A
CONDITIONS
V
IN
= 5.0V
V
OUT_NOM
= 1.0V
0.980
0.990
1.000
1.010
1.020
1.030
-50 -30 -10 10 30 50 70 90 110
OUTPUT VOL TAGE ( V)
AMBIENT TEMPER ATURE (°C)
Output Voltage vs. Temperature
LOAD = 600mA
LOAD = 0A
CONDITIONS
V
IN
= 3.3V
V
OUT_NOM
= 1.0V
1.780
1.790
1.800
1.810
1.820
1.830
1.840
-50 -30 -10 10 30 50 70 90 110
OUTPUT VOL TAGE ( V)
AMBIENT TEMPER ATURE (°C)
Output Voltage vs. Temperature
LOAD = 600mA
LOAD = 0A
CONDITIONS
V
IN
= 3.3V
V
OUT_NOM
= 1.8V
1.780
1.790
1.800
1.810
1.820
1.830
1.840
-50 -30 -10 10 30 50 70 90 110
OUTPUT VOL TAGE ( V)
AMBIENT TEMPER ATURE (°C)
Output Voltage vs. Temperature
LOAD = 600mA
LOAD = 0A
CONDITIONS
V
IN
= 5.0V
V
OUT_NOM
= 1.8V
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 8
Typical Performance Curves (Continued)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
55 60 65 70 75 80 85 90 95 100 105
MAXIMUM OUTP UT CURRENT (A)
AMBIENT TEMPER ATURE (°C)
No De-rating (V
IN
= 3.3V)
VOUT = 1.8V
VOUT = 2.5V
CONDITIONS
VIN = 3.3V
TJMAX = 125°C
θJA = 85°C/W
No Air Flow
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
55 60 65 70 75 80 85 90 95 100 105
MAXIMUM OUTP UT CURRENT (A)
AMBIENT TEMPER ATURE (°C)
No De-rating (V
IN
= 5V)
VOUT = 2.5V
VOUT = 3.3V
CONDITIONS
VIN = 5.0V
TJMAX = 125°C
θJA = 85°C/W
No Air Flow
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 9
Typical Performance Characteristics
VOUT
(AC Coupled)
Output Ripple at 20MHz Bandwidth
CONDITIONS
VIN = 5V
VOUT = 1.2V
IOUT = 500mA
VOUT
(AC Coupled)
Output Ripple at 20MHz Bandwidth
CONDITIONS
VIN = 5V
VOUT = 3.3V
IOUT = 500mA
VOUT
(AC Coupled)
Output Ripple at 20MHz Bandwidth
CONDITIONS
VIN = 3.3V
VOUT = 1.8V
IOUT = 500mA
VOUT
(AC Coupled)
Output Ripple at 20MHz Bandwidth
CONDITIONS
VIN = 3.3V
VOUT = 1.2V
IOUT = 500mA
ENABLE
Enable Power Up
CONDITIONS
VIN = 5V
VOUT = 3.3V (VID Mode)
IOUT = 10mA
VOUT
ENABLE
Enable Power Down
CONDITIONS
VIN = 5V
VOUT = 3.3V (VID Mode)
IOUT = 10mA
VOUT
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 10
Typical Performance Characteristics (Continued)
ENABLE
Enable Power Up
CONDITIONS
VIN = 5V
VOUT = 3.3V (VID Mode)
IOUT = 500mA
VOUT
ENABLE
Enable Power Down
CONDITIONS
VIN = 5V
VOUT = 3.3V (VID Mode)
IOUT = 500mA
VOUT
VOUT
(AC Coupled)
Load Transient from 0 to 500mA
CONDITIONS
VIN = 5V
VOUT = 1.2V
LOAD
VOUT
(AC Coupled)
Load Transient from 0 to 500mA
CONDITIONS
VIN = 3.3V
VOUT = 1.8V
LOAD
10380 June 26, 2015 Rev C
EP5358LUA/EP5358HUA
www.altera.com/enpirion, Page 11
Functional Block Diagram
DAC
Switch
VREF
(+)
(-)
Error
Amp
VSENSE
VFB
VOUT
Package Boundry
P-Drive
N-Drive
UVLO
Thermal Limit
Current Limit
Soft Start
Sawtooth
Generator
(+)
(-)PWM
Comp
PVIN
ENABLE
PGND
Logic
Compensation
Network
NC(SW)
Voltage
Select
VS0 VS1
AVIN VS2AGND
Figure 5 : Functional Block Diagram
10380 June 26, 2015 Rev C
