IMP528
Pin Configuration
SO/ MicroSO
VDD
RSW-OSC
CS
1
8
7
6
5
REL-OSC
IMP528
2
3
4
V
A
VB
LX
GND
Pin Compatible With IMP803 and IMP560
528_02.eps
Ordering Information
Part Number
IMP528ESA
IMP528EMA
IMP528/D*
Input Voltage
Regulated Output Voltage Temperature Range
Pins-Package
8-SO
2.0V to 6.5V
2.0V to 6.5V
2.0V to 6.5V
2.0V to 6.5V
Yes
Yes
Yes
Yes
–40°C to +85°C
–40°C to +85°C
25°C
8-MicroSO
Dice
IMP528/D1**
25°C
Dice
* Disable pad not active
** Disable pad active
Add /T to ordering part number for Tape and Reel.
Absolute Maximum Ratings
Note: All voltages are referenced to GND.
VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to +7.0V
VRSW-OSC and VREL-OSC . . . . . . . . . . . . . . . . . . . –0.5V to VDD +0.3V
VCS, LX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to +120V
Operating Temperature Range . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . . –65°C to +150°C
Power Dissipation (SO) . . . . . . . . . . . . . . . . . . 400mW
These are stress ratings only and functional operation is not
implied. Exposure to absolute maximum ratings for prolonged
time periods may affect device reliability.
Power Dissipation (MicroSO) . . . . . . . . . . . . . 300mW
VA, VB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to VCS (pin 3)
Electrical Characteristics
Unless otherwise noted, VDD = 3.0V, RSW = 910kΩ, REL = 2.7MΩ, and TA = 25°C.
Parameter
Symbol Conditions
Min
Typ
Max
Units
ON-resistance of MOS Switch
RDS(ON)
I = 100mA
3.0
110
220
420
500
20
8
Ω
V
Output Voltage Regulation
VCS
VDD = 2.0 to 6.5V
Output Voltage Peak-to-peak (in regulation)
Input Current at VDD Pin
V -VB
A
VDD = 2.0 to 6.5V
V
IDD
IDD
IDDQ
IIN
VDD = 3.0V, See Figure 1
VDD = 5.0V
700
750
200
31
µA
µA
nA
mA
Hz
kHz
%
Input Current at VDD Pin
Quiescent VDD Supply Current, Disabled
Input Current: IDD Plus Inductor Current
VRSW-OSC <100mV
VDD = 3.0V, See Figure 1
VDD = 3.0V, See Figure 1
VDD = 3.0V, See Figure 1
VDD = 3.0V, See Figure 1
21
VA-B Output Drive Frequency
fEL
250
61
Switching Frequency
Switching Duty Cycle
fSW
DSW
88
ꢀ
2
408-432-9100/www.impweb.com
© 2001 IMP, Inc.
IMP [ IMP, INC ]
