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PDF EP53A8HQA Data sheet ( Hoja de datos )
| Número de pieza | EP53A8HQA | |
| Descripción | 1A PowerSoC Voltage Mode Synchronous PWM Buck | |
| Fabricantes | Altera | |
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Enpirion® Power Datasheet
EP53A8LQA/HQA 1A PowerSoC
Voltage Mode Synchronous
PWM Buck with Integrated Inductor
Description
The EP53A8LQA and EP53A8HQA are 1A
PowerSoCs that are AEC-Q100 qualified for
automotive applications. The device integrates
MOSFET switches, control, compensation, and the
Inductor in an advanced 3mm x 3mm QFN Package.
Integrated inductor ensures the complete power
solution is fully characterized with the inductor
carefully matched to the silicon and compensation
network. It 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 27mm2 and operate
from -40°C to 105°C ambient temperature range.
The EP53A8xQA 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. EP53A8LQA further has the
option to use an external voltage divider.
Features
• Integrated Inductor Technology
• -40°C to +105°C Ambient Temperature Range
• AEC-Q100 Qualified for Automotive Applications
• 3mm x 3mm x 1.1mm QFN Package
• Total Solution Footprint ~ 27mm2
• Low VOUT Ripple for IO Compatibility
• High Efficiency, up to 94%
• VOUT Range 0.6V to VIN – 0.5V
• 1A Continuous Output Current
• 5 MHz Switching Frequency
• 3-pin VID for Glitch Free Voltage Scaling
• Short Circuit and Over Current Protection
• UVLO and Thermal Protection
• IC Level Reliability in a PowerSoC Solution
Applications
• Automotive Applications AEC-Q100 Requirement
• Portable Wireless and RF applications
• Wireless Broad Band Data Cards
• Solid State Storage Applications
• Noise and Space Sensitive Applications
VIN
4.7µF
0603
X7R
EP53A8xQA
100Ω
PVIN
VOUT
AVIN
ENABLE
VS0
VS1
VS2
PGND
VSENSE
VFB
AGND
Figure 1. Simplified Applications Circuit
VOUT
10µF
0805
X7R
100
95
90
85
80
75
70
65
60
55
50
45
40
0
Efficiency vs. IOUT (VIN = 3.3V)
27mm2
CONDITIONS
VIN = 3.3V
VOUT = 2.5V
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
OUTPUT CURRENT (A)
1
Figure 2. Highest Efficiency in Smallest Solution Size
10366
October 1, 2014
www.altera.com/enpirion
Rev A
1 page  
EP53A8LQA/EP53A8HQ A
PARAMETER
Soft Start Slew Rate
Soft Start Rise Time
SYMBOL
∆VSS
∆TSS
TEST CONDITIONS
EP53A8HQA (VID only)
EP53A8LQA (VID only)
EP53A8LQA (VFB mode); Note 2
MIN
170
TYP
8
4
225
MAX
280
UNITS
V/ms
µs
Note 1: Parameter guaranteed by design and characterization.
Note 2: Measured from when VIN ≥ VUVLO_R & ENABLE pin crosses its logic High threshold.
10366
October 1, 2014
www.altera.com/enpirion, Page 5
Rev A
5 Page 
EP53A8LQA/EP53A8HQ A
Typical Performance Characteristics (Continued)
Load Transient from 0 to 1A
VOUT
(AC Coupled)
CONDITIONS
VIN = 5V
VOUT = 1.2V
Load Transient from 0 to 1A
VOUT
(AC Coupled)
CONDITIONS
VIN = 5V
VOUT = 3.3V
LOAD
Load Transient from 0 to 1A
VOUT
(AC Coupled)
CONDITIONS
VIN = 3.7V
VOUT = 1.2V
LOAD
LOAD
Load Transient from 0 to 1A
VOUT
(AC Coupled)
CONDITIONS
VIN = 3.3V
VOUT = 1.8V
LOAD
10366
October 1, 2014
www.altera.com/enpirion, Page 11
Rev A
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet EP53A8HQA.PDF ] | |
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