IMP525
Pin Configuration
SO/MicroSO
V
DD
R
SW-OSC
C
S
L
X
1
2
3
4
IMP525
8
7
6
5
R
EL-OSC
V
A
V
B
GND
525_02.eps
Ordering Information
Part Number
IMP525EMA
IMP525ESA
IMP525/D
Input Voltage
0.9V to 2.5V
0.9V to 2.5V
0.9V to 2.5V
Regulated Output Voltage
YES
YES
YES
Temperature Range
– 40°C to +85°C
– 40°C to +85°C
25°C
Pins-Package
8-MicroSO
8-SO
Dice
Absolute Maximum Ratings
Supply Voltage, V
DD
, V
RSW-OSC
and V
REL-OSC
. . – 0.5V to +3.5V
Storage Temperature Range . . . . . . . . . . . . . . . . – 65°C to +150°C
Power Dissipation (SO package) . . . . . . . . . . . . 400mW
Power Dissipation (MicroSO package) . . . . . . . 300mW
Note: All voltages are referenced to GND.
These are stress ratings only and functional operation is not implied.
Exposure to absolute maximum ratings for prolonged time periods may
affect device reliability.
Electrical Characteristics
Unless otherwise noted, V
DD
= 1.5V, R
SW
= 1MΩ, R
EL
= 1.0MΩ, and T
A
= 25°C.
Parameter
ON-resistance of MOS Switch
Operating Voltage
Output Voltage at C
S
Output Voltage at C
S
Output Voltage Peak-to-Peak
Quiescent V
DD
Supply Current, Disabled
(Disable pin available on die only)
Quiescent V
DD
Supply Current, Disabled
Input Current at V
DD
Pin
Input Current: I
DD
Plus Inductor Current
V
A-B
Output Drive Frequency
Boost Converter Switching Frequency
Switching Duty Cycle
Disable Input LOW Voltage
(Disable pin available on die only)
Disable Input HIGH Voltage
(Disable pin available on die only)
Symbol
R
DS(ON)
V
CS
V
CS
V
A
-V
B
I
QDIS
I
QDIS
I
DD
I
IN
f
EL
f
SW
D
SW
V
DISL
V
DISH
Conditions
I = 50mA
V
DD
= 1.5V, See Figure 1, Table 1
V
DD
= 0.9V, See Figure 1, Table 2
V
DD
= 1.5V, See Figure 1
Disable = HIGH
R
SW-OSC
= GND
V
DD
= 1.5V
V
DD
= 0.9V to 1.5V
V
DD
= 1.5V
V
DD
= 1.5V, See Figure 1, Table 1
V
DD
= 1.5V, See Figure 1, Table 1
V
DD
= 1.5V, See Figure 1
Min
0.9
52
104
Typ
58
50
112
70
1.0
Max
15
2.5
65
124
Units
Ω
V
V
V
V
P-P
nA
µA
mA
mA
Hz
kHz
%
V
V
2.0
1.5
32
23
500
26
87.5
GND
V
DD
-0.5V
0.2
V
DD
2
IMP [ IMP, INC ]
