Rainbow Electronics MAX1567 User Manual
Page 3
MAX1566/MAX1567
Six-Channel, High-Efficiency, Digital
Camera Power Supplies
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
PVSU
= V
PV
= V
PVM
= V
PVSD
= V
INDL2
= 3.6V, T
A
= 0°C to +85°C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
STEP-UP DC-TO-DC
Step-Up Startup-to-Normal
Operating Threshold
Rising edge or falling edge (Note 4)
2.30
2.5
2.65
V
Step-Up Startup-to-Normal
Operating Threshold Hysteresis
80
mV
Step-Up Voltage Adjust Range
3.0
5.5
V
Start Delay of ONSD, ONM,
ON1, ON2, and ON3 after
SU in Regulation
1024
OSC
cycles
FBSU Regulation Voltage
1.231
1.25
1.269
V
FBS U to C C S U Tr anscond uctance
FBSU = CCSU
80
135
185
µS
FBSU Input Leakage Current
FBSU = 1.25V
-100
0.01
+100
nA
Idle Mode
TM
Trip Level
150
mA
Current-Sense Amplifier
Transresistance
0.275
V/A
Step-Up Maximum Duty Cycle
FBSU = 1V
80
85
90
%
PVSU Leakage Current
V
LX
= 0V, PVSU = 3.6V
0.1
5
µA
LXSU Leakage Current
V
LX
= V
OUT
= 3.6V
0.1
5
µA
N channel
95
150
Switch On-Resistance
P channel
150
250
m
Ω
N-Channel Current Limit
1.8
2.1
2.4
A
P-Channel Turn-Off Current
20
mA
Startup Current Limit
PVSU = 1.8V (Note 5)
450
mA
Startup t
OFF
PVSU = 1.8V
700
ns
Startup Frequency
PVSU = 1.8V
200
kHz
MAIN DC-TO-DC CONVERTER
Main Step-Up Voltage
Adjust Range
SUSD = PVSU
3
5.5
V
Main Step-Down Voltage
Adjust Range
SUSD = GND, PVM must be greater than output (Note 6)
2.45
5.00
V
PVM Undervoltage Lockout in
Step-Down Mode
SUSD = GND (Note 6)
2.45
2.5
2.55
V
Regulation Voltage
1.231
1.25
1.269
V
FBM to CCM Transconductance
FBM = CCM
80
135
185
µS
FBM Input Leakage Current
FBM = 1.25V
-100
0.01
+100
nA
Step-up mode (SUSD = PVSU)
150
Idle Mode Trip Level
Step-down mode (SUSD = GND)
100
mA
Step-up mode (SUSD = PVSU)
0.25
Current-Sense Amplifier
Transresistance
Step-down mode (SUSD = GND)
0.5
V/A
Idle Mode is a trademark of Maxim Integrated Products, Inc.