SMB218 View Datasheet(PDF) - Summit Microelectronics
Part Name
Description
Manufacturer
SMB218 Datasheet PDF : 37 Pages
| |||
PLEASE NOTE: The SMB118 has entered End-of-Life.
SMB118/218
DC OPERATING CHARACTERISTICS (CONTINUED)
(Over commercial operating conditions, unless otherwise noted. All voltages are relative to GND.)
Channel 3 – Step-down BUCK or Step-up BOOST
VOUT
Voltage (nominal set point, VBATT=4.2V, ILOAD=0A
Buck)
+0.5
+VIN V
VOUT
Voltage (nominal set point, VBATT=4.2V, ILOAD=0A
Boost)
+VIN
+35
V
VFB
Feedback Voltage
Reference range
Programmable in 4mV steps
0
1
V
∆VFB
Feedback Voltage
Reference
FB3 Pin, VFB = 0.656V,
Note 2
-2
+2
%
AVOL
Error amp open loop gain
60
dB
IEA
Error amp output drive
±20
µA
IEAB
Error amp input bias current
9
10
nA
RDRVH
HS Gate drive impedance
(Buck only)
Output High
Output Low
15
Ω
15
Ω
RDRVL
LS Gate drive impedance
Output High
Output Low
15
Ω
15
Ω
D.C. (Boost) Duty Cycle
D.C. (Buck)
Duty Cycle
Maximum, VBATT = 4.2V
Minimum, PWM mode,
VBATT = 4.2V
Maximum, VBATT = 4.2V
Minimum, PWM mode,
VBATT = 4.2V
80
90
98
%
6
10
%
100
%
7
11
%
Summit Microelectronics, Inc
2107 3.0 10/15/2008
12
Share Link: 