EY1501DI-ADJ Datasheet, PDF (1/13 Pages) Altera Corporation – EY1501DI-ADJ High Performance 1A LDO

Enpirion^® Power Datasheet
EY1501DI-ADJ High Performance 1A LDO
EY1501DI-ADJ
Datasheet
The EY1501DI-ADJ is a low voltage, high current, single
output LDO specified at 1A output current. This LDO
operates from input voltages from 2.2V to 6V, and is
capable of providing output voltages from 0.8V to 5V.
The EY1501DI-ADJ features an adjustable output.
A sub-micron BiCMOS process is utilized to deliver the
best in class analog performance and overall value. This
CMOS LDO will consume significantly lower quiescent
current as a function of load compared to bipolar LDOs,
which translates into higher efficiency and packages
with smaller footprints. State of the art internal
compensation achieves a very fast load transient
response. An external capacitor on the soft-start pin
provides an adjustable soft-starting ramp. The EN
feature allows the part to be placed into a low quiescent
current shutdown mode. A Power OK logic output
signals a fault condition.
Table 1 shows the EY1501DI-ADJ features.
TABLE 1. EY1501DI-ADJ Features
PROGRAMMABLE
I_LIMIT
PART NUMBER
I_LIMIT
(DEFAULT)
V_OUT
EY1501DI-ADJ
No
1.75A
ADJ
Features
• ±0.2% initial V_OUT Accuracy
• ±1.8% V_OUT Accuracy Guaranteed Over Line, Load
and T_J = -40°C to +125°C
• Very Low 130mV Dropout Voltage at V_OUT = 2.5V
• Very Fast Transient Response
• Programmable Soft-starting
• Power OK Output
• Excellent 58dB PSRR at 1kHz
• Current Limit Protection
• Thermal Shutdown Function
• Available in a 10 Ld DFN Package
• Pb-Free (RoHS Compliant)
Applications
• DSP, FPGA and µP Core Power Supplies
• Noise-Sensitive Instrumentation Systems
• Post Regulation of Switched Mode Power Supplies
• Industrial Systems
• Medical Equipment
• Telecommunications and Networking Equipment
• Servers
• Hard Disk Drives (HD/HDD)
2.5V ± 10%
10µF
C_IN
10k
R₃
10 _VIN
9 _VIN
V_OUT ¹
V_OUT ²
82pF
C_PB
VFB ³
EY1501DI-ADJ
7 _EN
4
POK
0.01µF
C_SS
6 _SS
GND
5
2.61k
R₂
1.00k
R₁
1.8V
10µF
C_OUT
100k
R_POK
FIGURE 1. TYPICAL APPLICATION CIRCUIT
140
120
100
80
60
40
20
00
V_OUT = 2.5V
0.2
0.4
0.6
0.8
1.0
OUTPUT CURRENT (A)
FIGURE 2. DROPOUT vs LOAD CURRENT
101 Innovation Drive
San Jose, CA 95134
www.altera.com
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May 2014 Altera Corporation
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May 28, 2014
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