MAX5092AATE(2006) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX5092AATE Datasheet PDF : 23 Pages
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4V to 72V Input LDOs with Boost Preregulator
ABSOLUTE MAXIMUM RATINGS
IN, EN, LX, BSOUT to SGND..................................-0.3V to +80V
PGND_BST, PGND_LDO to SGND .......................-0.3V to +0.3V
VL, RESET, OUT, OUT_SENSE to SGND ...............-0.3V to +12V
BSOUT to LX (MAX5092_)......................................-0.3V to +12V
SET, BSFB, CT to SGND ..........................................-0.3V to +6V
HOLD to SGND….....................................-0.3V to (VOUT + 0.3V)
OUT Current (IOUT) Short Circuit to PGND_LDO,
(VIN ≤ 28V) ..............................................................Continuous
Note 1: As per JEDEC Standard 51 (Multilayer Board).
RESET Sinking Current .........................................................5mA
Continuous Power Dissipation (TA = +70°C)
16-Pin Thin QFN (derate 33.3mW/°C
above +70°C)...............................................2666mW (Note 1)
Operating Temperature Range .........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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
(VIN = VEN = 14V, IOUT = 1mA, CIN = 47µF, CBSOUT = 22µF, COUT = 10µF, CVL = 1µF, TA = TJ = -40°C to +125°C, unless otherwise
noted. See Figures 4–7 as applicable. Typical specifications are at TA = +25°C.) (Note 2)
PARAMETER
INPUT SUPPLY
Input Voltage Range
Internal Input Undervoltage
Lockout
Supply Current (Boost Converter
Off)
Supply Current (Boost Converter
On)
SYMBOL
CONDITIONS
MIN
VIN
(Note 3)
4
VUVLOF VIN falling
3.0
VUVLOR VIN rising
3.4
LDO mode,
TJ = -40°C to +125°C
IQ
IOUT = 100µA
(Note 4)
LDO mode, IOUT = 250mA
IS
VIN = 5V
TYP MAX UNITS
72
V
3.2
3.4
V
3.6
3.8
65
85
µA
70
100
0.4
1.0
mA
Shutdown Supply Current
ISHDN
VEN ≤ +0.4V
TJ = -40°C to +125°C
(Note 4)
6
10
µA
BOOST CONVERTER
Minimum BSOUT Output Current
Boost Converter Disable
Threshold
IBSOUT
VBST_DIS
VIN = 4V
VIN rising
250
mA
7.5
8.0
8.5
V
Boost Converter Disable
Threshold Hysteresis
0.5
V
BSOUT Output Voltage
Maximum BSOUT Output Voltage
BSFB Regulation Voltage
BSFB Input Bias Current
Boost Internal Switch
On-Resistance
VBSOUT VIN = 4V, BSFB = SGND
MAX5092_
VBSOUT(MAX) MAX5093_
VBSFB
IBSFB
RDS(ON)
6.65 7.00 7.35
V
11
V
12
1.18 1.24 1.30
V
100
nA
0.5
1.2
Ω
Boost Internal Switch Minimum
Off-Time
tOFF
0.80
1
1.25
µs
2 _______________________________________________________________________________________
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