MAX1565 Datasheet, PDF (5/26 Pages) Maxim Integrated Products – Small, High-Efficiency, Five-Channel Digital Still Camera Power Supply

Small, High-Efficiency, Five-Channel
Digital Still Camera Power Supply
ELECTRICAL CHARACTERISTICS (continued)
(V_OUTSU = 3.3V, T_A = -40°C to +85°C, unless otherwise noted.)
PARAMETER
Reference Line Regulation
CONDITIONS
2.7V < OUTSU < 5.5V
OSC Discharge Trip Level
Rising edge
OSC Discharge Resistance
OSC = 1.5V, I_OSC = 3mA
STEP-UP DC-TO-DC CONVERTER
Step-Up Startup-to-Normal
Operating Threshold
Rising or falling edge (Note 4)
Step-Up Voltage Adjust Range
FBSU Regulation Voltage
OUTSU Regulation Voltage
FBSELSU = GND
FBSU to COMPSU
Transconductance
FBSU = COMPSU
FBSU Input Leakage Current
Idle-Mode Trip Level
Step-Up Maximum Duty Cycle
FBSU = 1.25V
(Note 6)
FBSU =1V
OUTSU Leakage Current
LXSU Leakage Current
Switch On-Resistance
V_LX = 0V, OUTSU = 5.5V
V_LXSU = V_OUT = 5.5V
N-channel
P-channel
N-Channel Current limit
STEP-DOWN DC-TO-DC CONVERTER
FBSD Regulation Voltage
OUTSD Regulation Voltage
FBSELSD = GND
FBSD to COMPSD
Transconductance
FBSD = COMPSD
FBSD Input Leakage Current
FBSD = 1.25V
Idle-Mode Trip Level
LXSD Leakage Current
Switch On-Resistance
P-Channel Current Limit
(Note 6)
V_LXSD = 5.5V, OUTSU = 5.5V
V_LXSD = 0V, OUTSU = 5.5V
N-channel
P-channel
SDOK Output Low Voltage
FBSD = 0.4V; 0.1mA into SDOK pin
SDOK Operating Voltage Range
AUXILIARY DC-TO-DC CONTROLLERS (AUX 1, 2, AND 3)
Maximum Duty Cycle
FB_ = 1V
FB_ Regulation Voltage
FB_ = COMP_
MIN TYP MAX UNITS
5
mV
1.225
1.275
V
80
Ω
2.30
2.7
1.225
3.283
80
-100
150
80
1.6
1.225
1.47
80
-100
110
0.7
1
80
1.225
2.60
V
5.5
V
1.275
V
3.417
V
185
µS
+100
nA
275
mA
90
%
20
µA
20
µA
150
mΩ
250
2.4
A
1.275
V
1.53
V
185
µS
+100
nA
195
mA
20
µA
20
150
mΩ
250
1.0
A
0.1
V
5.5
V
90
%
1.275
V
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