MAX16023 Datasheet, PDF (2/17 Pages) Maxim Integrated Products – Battery-Backup Circuits with Regulated Output Voltage

Battery-Backup Circuits with
Regulated Output Voltage
ABSOLUTE MAXIMUM RATINGS
V_CC, BATT, OUT to GND..........................................-0.3V to +6V
RESET, PFO, BATT ON (all open drain)
to GND..................................................................-0.3V to +6V
RESET, PFO, BATT ON (all push-pull)
to GND .................................................-0.3V to (V_OUT + 0.3V)
PFI, CEIN, CEOUT to GND.......................-0.3V to (V_OUT + 0.3V)
MR to GND .................................................-0.3V to (V_CC + 0.3V)
Input Current
V_CC Peak Current.....................................................................1A
V_CC Continuous Current ...............................................250mA
BATT Peak Current .......................................................500mA
BATT Continuous Current ...............................................70mA
Output Current
OUT Short Circuit to GND Duration ....................................10s
RESET, BATT ON, CEOUT..............................................20mA
Continuous Power Dissipation (T_A = +70°C)
8-Pin TDFN (derate 24.4mW/°C above +70°C) .........1951mW
10-Pin TDFN (derate 24.4mW/°C above +70°C) .......1951mW
Thermal Resistance (Note 1)
θ_JA (8-Pin and 10-Pin TDFN)........................................41°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V_CC = 1.53V to 5.5V, V_BATT = 3V, reset not asserted, T_A = T_J = -40°C to +85°C, C_OUT = 10µF, unless otherwise noted. Typical val-
ues are at T_A = T_J = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating Voltage Range
V_CC, V_BATT (Note 3)
LDO = 1.2V
1.53
5.5
V
4.3
6
V_CC = LDO + 0.5V,
no load
LDO = 1.8V
LDO = 2.5V
LDO = 3V
4.7
7
5.2
7.5
5.5
8
Supply Current
I_CC
LDO = 3.3V
LDO = 1.2V
5.7
8
µA
16
20
V_CC = LDO + 0.5V,
I_OUT = 20mA
LDO = 1.8V
LDO = 2.5V
LDO = 3V
16
21
16
18.1
17
18.6
LDO = 3.3V
17
19
Supply Current in Battery-Backup
Mode
I_BATT
V_CC = 0, V_BATT = 3V,
no dropout, no load
3.5
5.26
µA
BATT Standby Current
SET Reference Voltage
SET Input Leakage Current
V_SET
V_CC > V_BATT + 0.2V
MAX16024_TB_, V_CC = 2.2V
MAX16024_TB_, SET = 1.2V
-0.01
+0.01 µA
1.144 1.2 1.272
V
-20
+20
nA
Output Voltage Range
V_OUT
MAX16024_TB_, V_CC > V_OUT
LDO = 1.2V
1.8
5.25
V
1.145 1.2 1.270
LDO = 1.8V
1.704 1.8 1.900
Output Voltage Accuracy
I_OUT = 1mA
LDO = 2.5V
LDO = 3V
2.368 2.5 2.634
V
2.837
3
3.165
LDO = 3.3V
3.114 3.3 3.482
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