Datasheet

(V
IN
= +14V, I
OUT
= 1mA, C
IN
= 100μF, C
OUT
= 22μF, L = 22μH, C
BP
= 1μF, V
EN
= +2.4V (Figure 2), SGND = PGND = 0V, T
A
= T
J
=
-40°C to +125°C, unless otherwise noted. Typical values are at T
A
= T
J
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Voltage V
OUT
5V version, MAX5096B/MAX5097B,
5.5V ≤ V
IN
≤ 40V, I
OUT
= 10mA
4.89 5 5.09 V
3.3V version, MAX5096A/MAX5097A,
4V ≤ V
IN
≤ 40V, I
OUT
= 10mA
3.219 3.3 3.378 V
ADJ Set Point V
ADJ
I
OUT
= 10mA 1.21 1.2375 1.26 V
ADJ Input Bias Current I
FB
V
ADJ
= 4V 0.5 100 nA
Adjustable Output Voltage Range V
ADJ
I
OUT
= 10mA 1.237 11.000 V
Dropout Voltage ΔV
DO
I
OUT
= 100mA,
V
OUT
= 0.98 x V
OUT
(nominal) (5V
version only), MAX5096B/MAX5097B
0.37 V
Startup Response Time
Rising edge of EN to
V
OUT
= 10% V
OUT
(nominal),
R
L
= 500Ω, V
ADJ
= SGND,
V
LDO/BUCK
= 4V, C
SS
= 2nF
300 µs
Line Regulation
ΔV
OUT
/
ΔV
IN
5V version, +5.5V ≤ V
IN
≤ +40V,
I
OUT
= 100mA
0.125
mV/V
3.3V version, +4V ≤ V
IN
≤ +40V,
I
OUT
= 100mA
0.093
Load Regulation
ΔV
OUT
/
ΔI
OUT
5V version,
I
OUT
= 100μA to
100mA, V
IN
= 14V
T
J
= +25°C 0.242 0.374
mV/mA
T
J
= -40°C to +125°C 0.242 1
3.3V version,
I
OUT
= 100μA to
100mA, V
IN
= 14V
T
J
= +25°C 0.164 0.237
T
J
= -40°C to +125°C 0.164 1
Power-Supply Rejection Ratio PSRR
I
OUT
= 10mA, f = 100Hz, 500mV
P-P
,
V
OUT
= +5V, V
IN
= +14V
60 dB
Short-Circuit Current I
SC
V
IN
= 6V 150 330 500 mA
LDO/BUCK High Threshold 2.0 V
LDO/BUCK Low Threshold 0.8 V
LDO/BUCK Input Leakage V
LDO/BUCK
= 11V 1 µA
Transition Timing from LDO Mode
to Buck Mode
Falling edge of LDO/BUCK to buck
converter on
32
Clock
Periods
Transition Timing from Buck Mode
to LDO Mode
Rising edge of LDO/BUCK to LDO
operation
100 µs
SOFT-START, ENABLE (EN) AND RESET
Soft-Start Charge Current I
SS
V
SS
= 0.1V 3 5 7 µA
Soft-Start Reference Voltage V
SS-REF
V
OUT
= V
OUT (nominal)
- 20% 0.9 0.99 1.1 V
EN High-Voltage Threshold V
ENH
EN = high, regulator on 1.4 V
MAX5096/MAX5097 40V, 600mA Buck Converters with Low-
Quiescent-Current Linear Regulator Mode
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Electrical Characteristics (continued)