MAX5092 查看數據表（PDF） - Maxim Integrated
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MAX5092 Datasheet PDF : 23 Pages
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MAX5092/MAX5093
4V to 72V Input LDOs with Boost Preregulator
Electrical Characteristics (continued)
(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
Boost Internal Switch Maximum
On-Time
Internal Switch Current Limit
Boost Turn-On Response Time
Internal Diode Forward Voltage
Drop
LDO
Guaranteed Output Current
Output Voltage
Minimum Adjustable Output
Voltage
SYMBOL
CONDITIONS
MIN
tON-max
1.80
ILIM
Measured in steady-state condition
1.5
Time from VBSOUT falling below regulation
to switch on-time
VF
MAX5092_ only, IF = 1A
TYP
2.25
2
0.95
MAX
2.70
3.0
5
UNITS
µs
A
µs
V
IOUT
VBSOUT - VOUT = 2V (Note 6)
250
mA
SET = SGND, IOUT = 1mA
MAX5092A/
3.25
3.3
3.35
MAX5093A 100µA ≤ IOUT ≤ 250mA
3.2
3.3
3.4
VOUT
SET = SGND, IOUT = 1mA
MAX5092B/
V
4.900
5
5.075
MAX5093B 100µA ≤ IOUT ≤ 250mA
4.85
5
5.10
VADJMIN Boost operation, VIN = 4V, VBSOUT = 7V
1.5
V
Maximum Adjustable Output
Voltage
Adjustable Output Voltage
Dropout Voltage
LDO Startup Response Time
Line Regulation
SET Reference Voltage
SET Input Bias Current
Load Regulation
Power-Supply Rejection Ratio
Short-Circuit Current
VADJMAX
VADJ
∆VDO
∆VOUT /
∆VIN
VSET
ISET
∆VOUT /
∆IOUT
PSRR
ISC
Boost
operation, VIN
= 4V
MAX5092_,
VBSOUT = 11V
MAX5093_,
VBSOUT = 12V
LDO operation, VIN ≥ VBST_DIS
(boost converter off) (Note 7)
IOUT = 250mA (Note 8)
Rising edge of VBSOUT to the rising edge
of VOUT, RL = 500Ω, SET = SGND
7V ≤ VIN ≤
MAX5092A/MAX5093A
72V,
ILOAD = 10mA MAX5092B/MAX5093B
7V ≤ VIN ≤ 28V, ILOAD = 250mA
1.5
1.205
IOUT = 1mA to 250mA
f = 100Hz
f = 1MHz
IOUT = 10mA,
VBSOUT(AC) = 500mVP-P,
VOUT = 5V
IOUT = 10mA,
VBSOUT(AC) = 500mVP-P,
VOUT = 5V
255
9
10
0.9
200
1.6
1.235
0.5
0.2
80
60
490
10.0
1.6
0.4
0.5
1.265
100
0.6
V
V
V
µs
mV/V
V
nA
mV/mA
dB
mA
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