SP6641BEK-L-5-0-TR Datasheet, PDF (2/14 Pages) Exar Corporation – 500mA Alkaline DC/DC Boost Regulator in SOT-23

ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional
operation of the device at these ratings or any other
above those indicated in the operation sections of
the specifications below is not implied. Exposure to
absolute maximum rating conditions for extended
periods of time may affect reliability.
LX, V_OUT, SHDN, V_BATT to GND pin ....... -0.3 to 6.0V
LX Current .......................................................... 1.5A
Reverse V_BATT Current ................................... 220mA
Storage Temperature ........................ -65°C to 150°C
Operating Temperature ..................... -40°C to +85°C
Lead Temperature (Soldering, 10 sec) .......... 300 °C
ELECTRICAL SPECIFICATIONS
V_BATT = V_SHDN = 1.3V, I_LOAD = 0mA, -40°C <T_A < +85°C, V_OUT = +3.3V or +5.0V preset, typical values at 27°C
unless otherwise noted.
PARAMETER
MIN
Input Voltage Operating Range,
0.5
V_BATT
Startup Voltage, V_BATT
Output Voltage, V_OUT
Quiescent Current into V_OUT,
I_Q(OUT)
Quiescent Current into V_BATT,
I_QB
Shutdown Current into V_OUT,
I_SHDN
Shutdown Current into V_BATT,
I_SHDN
Inductor Current Limit
(SP6641A)
Inductor Current Limit
(SP6641B)
Output Current (SP6641AEK-3.3)
3.16
4.80
280
850
Output Current (SP6641BEK-3.3)
Output Current (SP6641AEK-5.0)
Output Current (SP6641BEK-5.0)
Minimum Off-Time Constant
K_OFF
NMOS Switch Resistance
SHDN Input Voltage
Vil
Vih
80
SHDN Input Current
TYP
0.85
3.30
5.00
10
250
1
20
330
1000
90
190
200
500
100
175
275
500
1.50
0.3
1
MAX UNITS CONDITIONS
4.5
V
after startup
0.90
V
R_LOAD=3kΩ, T_A =27°C
1.00
V
R_LOAD=3kΩ,-40°C <T_A < +85°C
3.44
V
3.3V V_OUT preset
5.20
V
5.0V V_OUT preset
15
µA
V_OUT=3.5V, 3.3V V_OUT preset
V_OUT=5.5V, 5.0V V_OUT preset
500
nA
V_OUT=3.5V, 3.3V V_OUT preset
V_OUT=5.5V, 5.0V V_OUT preset
500
nA
V_SHDN =0V
100
nA
V_SHDN =0V
380 mA
1150 mA
0.75
20
100
mA
mA
mA
mA
mA
mA
mA
mA
V*µs
Ω
%
%
nA
V_BATT =1.3V
V_BATT =2.6V
V_BATT =1.3V
V_BATT =2.6V
V_BATT =2.0V
V_BATT =3.3V
V_BATT =2.0V
V_BATT =3.3V
T_OFF ≥ K_OFF / (V_OUT – V_IN)
Inmos=100mA
% of V_BATT
% of V_BATT
Rev. 5/26/05, *Patent Pending
SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23
2
© Copyright 2002 Sipex Corporation