SMB118 SUMMIT Microelectronics, Inc:, SMB118 Datasheet - Page 12

• Manufacturer Part Number: SMB118
• Description: Six-channel Programmable Dc-dc Power Managers With Battery Charger
• Manufacturer: SUMMIT Microelectronics, Inc:

Summit Microelectronics, Inc
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
V
V
V
∆V
A
I
I
R
R
D.C. (Boost)
D.C. (Buck)
EA
EAB
OUT
OUT
FB
VOL
DRVH
DRVL
FB
Voltage (nominal set point,
Buck)
Voltage (nominal set point,
Boost)
Feedback Voltage
Reference range
Feedback Voltage
Reference
Error amp open loop gain
Error amp output drive
Error amp input bias current
HS Gate drive impedance
(Buck only)
LS Gate drive impedance
Duty Cycle
Duty Cycle
V
V
Programmable in 4mV steps
FB3 Pin, V
Note 2
Output High
Output Low
Output High
Output Low
Maximum, V
Minimum, PWM mode,
V
Maximum, V
Minimum, PWM mode,
V
2107 2.4 5/5/2008
BATT
BATT
BATT
BATT
=4.2V, I
=4.2V, I
= 4.2V
= 4.2V
FB
BATT
BATT
= 0.656V,
LOAD
LOAD
= 4.2V
= 4.2V
=0A
=0A
+VIN
+0.5
80
-2
0
Preliminary Specification
±20
100
SMB118/218
60
15
15
15
15
90
9
6
7
+VIN
+35
+2
10
98
10
11
1
dB
µA
nA
%
%
%
%
%
Ω
Ω
Ω
Ω
V
V
V
12