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| MIC2810_08 Datasheet, PDF (4/18 Pages) Micrel Semiconductor – Digital Power Management IC 2MHz, 600mA DC/DC w/Dual 300mA/300mA Low VIN LDOs | |||
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Micrel, Inc.
MIC2810
Absolute Maximum Ratings(1)
Supply Voltage (VIN, VIN1, VIN2)............................... 0V to 6V
Enable Input Voltage (VEN, VEN1, VEN2)................... 0V to VIN
Power Dissipation .................................. Internally Limited(3)
Lead Temperature (soldering, 10 sec.)...................... 260°C
Storage Temperature (Ts) .........................â65°C to +150°C
ESD Rating(4).................................................................. 2kV
Operating Ratings(2)
Supply Voltage (VIN, VIN2)................................. 2.7V to 5.5V
Supply Voltage (VIN1)...................................... 1.65V to 5.5V
Enable Input Voltage (VEN, VEN1, VEN2)................... 0V to VIN
Junction Temperature (TJ) ........................ â40°C to +125°C
Junction Thermal Resistance
MLF-16 (θJA) ......................................................56°C/W
Electrical Characteristics(5)
VIN = VIN1 = VIN2 = EN1 = EN2 = EN = /LOWQ = VOUT(6) + 1V; COUTDC/DC = 2.2µF, CLDO1 = CLDO2 = 2.2µF; IOUTDC/DC = 100mA;
IOUTLDO1 = IOUTLDO2 = 100µA; TJ = 25°C, bold values indicate â40°C < TJ < +125°C; unless noted.
Parameter
UVLO Threshold
UVLO Hysteresis
Ground Pin Current
Conditions
Rising input voltage during turn-on
VFB = GND (not switching);
Min Typ
2.45 2.55
100
800
Max
2.65
1100
Units
V
mV
µA
LDO1 or LDO2 (EN = GND; EN1 or EN2 = GND)
55
85
µA
95
µA
Ground Pin Current in
Shutdown
EN = EN1 = EN2 = 0V
0.2
5
µA
Ground Pin Current
(LOWQ® mode)
IDC/DC < ILDO1 < ILDO2 < 10mA (/LOWQ = GND)
38
60
µA
80
µA
Over-temperature Shutdown
LDO1 or LDO2 (EN = GND; EN1 or EN2 = GND);
IOUT < 10mA (/LOWQ = GND)
20
70
µA
160
°C
Over-temperature Shutdown
Hysteresis
23
°C
Enable Inputs (EN; EN1; EN2; /LOWQ )
Enable Input Voltage
Logic Low
0.2
V
Logic High
1.0
V
Enable Input Current
Turn-on Time
VIL < 0.2V
VIH > 1.0V
0.1
1
µA
0.1
1
µA
Turn-on Time
240
500
µs
(LDO1 and LDO2)
Turn-on Time (DC/DC)
(/LOWQ = VIN; ILOAD = 300mA); (/LOWQ = GND; ILOAD =
10mA)
83
350
µs
POR Output
VTH
Low Threshold, % of nominal (VDC/DC or VLDO1 or VLDO2) (Flag
ON)
90
91
%
VOL
High Threshold, % of nominal (VDC/DC AND VLDO1 AND
VLDO2) (Flag OFF)
POR Output Logic Low Voltage; IL = 250µA
96
99
%
10
100
mV
IPOR
Flag Leakage Current, Flag OFF
0.01
1
µA
SET INPUT
SET Pin Current Source
VSET = 0V
0.75 1.25 1.75
µA
SET Pin Threshold Voltage
POR = High
1.25
V
February 2008
4
M9999-022008-C
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