EP53A7LQI Datasheet, PDF (5/19 Pages) Altera Corporation – 1A PowerSoC Light Load Mode Buck Regulator with Integrated Inductor

EP53A7LQI/EP53A7HQI
PARAMETER
LLM Pin Current
Operating Frequency
Soft Start Operation
SYMBOL
I_LLM
F_OSC
TEST CONDITIONS
MIN TYP
<100
5
Soft Start Slew Rate
∆V_SS
EP53A7LQI (VID only)
EP53A7HQI (VID only)
4
8
Soft Start Rise Time
∆T_SS
EP53A7LQI (VFB mode); Note 2
170
225
Note 1: Parameter guaranteed by design
Note 2: Measured from when V_IN ≥ V_{UVLO_R} & ENABLE pin crosses its logic High threshold.
MAX
UNITS
nA
MHz
V/mS
280
µS
Typical Performance Characteristics
95
90
85
LLM
80
75
70
65
60
55
50
45
10
PWM
VOUT=1.2V
100
Load Current (mA)
1000
Efficiency vs. Load Current: V_OUT = 1.2V, V_IN (from
top to bottom) = 2.5, 3.3, 3.7, 4.3, 5.0V
95
LLM
90
85
80
75
70
65
60
55
50
PWM
45
VOUT=2.5V
10
100
1000
Load Current (mA)
Efficiency vs. Load Current: V_OUT = 2.5V, V_IN (from
top to bottom) = 3.3, 3.7, 4.3, 5.0V
95 LLM
90
85
80
75
70
65
60
55
50
45
10
PWM
VOUT=1.8V
100
Load Current (mA)
1000
Efficiency vs. Load Current: V_OUT = 1.8V, V_IN (from
top to bottom) = 2.5, 3.3, 3.7, 4.3, 5.0V
95
LLM
90
85
80
75
70
65
60
55
50
PWM
45
VOUT=3.3V
10
100
1000
Load Current (mA)
Efficiency vs. Load Current: V_OUT = 3.3V, V_IN (from
top to bottom) = 3.7, 4.3, 5.0V
01543
5
October 11, 2013
www.altera.com/enpirion
Rev D