MAX1533A Datasheet, PDF (2/38 Pages) Maxim Integrated Products – High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers

High-Efficiency, 5x Output, Main Power-Supply
Controllers for Notebook Computers
ABSOLUTE MAXIMUM RATINGS
IN, SHDN, INA, LDOA to GND ...............................-0.3V to +30V
GND to PGND .......................................................-0.3V to +0.3V
LDO5, LDO3, V_CC to GND .......................................-0.3V to +6V
ILIM3, ILIM5, PGDLY to GND...................................-0.3V to +6V
CSL3, CSH3, CSL5, CSH5 to GND ..........................-0.3V to +6V
ON3, ON5, FB3, FB5 to GND ..................................-0.3V to +6V
SKIP, OVP, UVP to GND...........................................-0.3V to +6V
PGOOD, FSEL, ADJA, ONA to GND ........................-0.3V to +6V
REF to GND ................................................-0.3V to (V_CC + 0.3V)
DL3, DL5 to PGND..................................-0.3V to (V_LDO5 + 0.3V)
BST3, BST5 to PGND .............................................-0.3V to +36V
LX3 to BST3..............................................................-6V to +0.3V
LX5 to BST5..............................................................-6V to +0.3V
DH5 to LX5 ..............................................-0.3V to (V_BST5 + 0.3V)
LDO3, LDO5 Short Circuit to GND .............................Momentary
REF Short Circuit to GND ...........................................Momentary
INA Shunt Current.............................................................+15mA
Continuous Power Dissipation (T_A = +70°C)
32-Pin TQFN (derate 21.3mW/°C above +70°C) .......1702mW
36-Pin TQFN (derate 26.3mW/°C above +70°C) .......2105mW
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
DH3 to LX3 ..............................................-0.3V to (V_BST3 + 0.3V)
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
(Circuit of Figure 1, V_IN = 12V, both SMPS enabled, V_CC = 5V, FSEL = REF, SKIP = GND, V_{ILIM_} = V_LDO5, V_INA = 15V, V_LDOA = 12V,
I_LDO5 = I_LDO3 = I_LDOA = no load, T_A = 0°C to +85°C, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
INPUT SUPPLIES (Note 1)
V_IN Input Voltage Range
V_IN Operating Supply Current
V_IN Standby Supply Current
V_IN Shutdown Supply Current
Quiescent Power Consumption
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
LDO5 in regulation
V_IN
IN = LDO5, V_OUT5 < 4.43V
6
26
V
4.5
5.5
I_IN
LDO5 switched over to CSL5
15
35
µA
I_IN(STBY)
V_IN = 6V to 26V, both SMPS off,
includes I_SHDN
100
170
µA
I_IN(SHDN) V_IN = 6V to 26V, SHDN = GND
5
17
µA
Both SMPS on, FB3 = FB5 = SKIP = GND,
P_Q
V_CSL3 = 3.5V, V_CSL5 = 5.3V, V_INA = 15V,
I_LDOA = 0, P_IN + P_CSL3 + P_CSL5 + P_INA
3.5
4.5
mW
V_CC Quiescent Supply Current
MAIN SMPS CONTROLLERS
3.3V Output Voltage in Fixed
Mode
5V Output Voltage in Fixed Mode
Feedback Voltage in Adjustable
Mode
I_CC
Both SMPS on, FB3 = FB5 = GND,
V_CSL3 = 3.5V, V_CSL5 = 5.3V
V_OUT3
V_OUT5
V_{FB_}
V_IN = 6V to 26V, SKIP = V_CC (Note 2)
V_IN = 6V to 26V, SKIP = V_CC (Note 2)
V_IN = 6V to 26V, FB3 or FB5,
duty factor = 20% to 80% (Note 2)
1.1
2.1
mA
3.280 3.33 3.380
V
4.975 5.05 5.125
V
0.990 1.005 1.020
V
Output-Voltage Adjust Range
FB3, FB5 Dual-Mode Threshold
Feedback Input Leakage Current
DC Load Regulation
Either SMPS
V_FB3 = V_FB5 = 1.1V
Either SMPS, SKIP = V_CC,
I_LOAD = 0 to full load
1.0
5.5
V
0.1
0.2
V
-0.1
+0.1
µA
-0.1
%
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