Owner manual

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
mΩ
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.