19-4816; Rev 2; 7/11
200mA, Automotive, Ultra-Low
Quiescent Current, Linear Regulator
General Description
The MAX16910 ultra-low quiescent current, high-voltage
linear regulator is ideal for use in automotive and battery-
operated systems. The device operates from a +3.5V to
+30V input voltage, delivers up to 200mA of load cur-
rent, and consumes only 20µA of quiescent current at
no load. The device consumes only 1.6µA current when
in shutdown. The input is +45V transient tolerant and is
designed to operate under load-dump conditions. The
MAX16910 can be configured as either fixed output volt-
age (+3.3V or +5V) or adjustable output voltage using an
external resistive divider.
The MAX16910 features an open-drain, active-low
RESET
output with fixed thresholds offered at 92.5% and 87.5%
of the output voltage. The
RESET
output remains low for
a fixed period of 60µs after the output voltage exceeds
its threshold. The
RESET
delay can be extended with an
external capacitor.
The MAX16910 includes an enable input, short-circuit
protection, and thermal shutdown. The MAX16910 oper-
ates over the -40°C to +125°C automotive temperature
range. The device is available in a space-saving, ther-
mally enhanced, 3mm x 3mm, 8-pin TDFN package and
5mm x 4mm, 8-pin SO package.
S Low_20µA_Quiescent_Current
S +3.5V_to_+30V_Wide_Input_Voltage_Range,_+45V_
Tolerant
S Operates_Through_Cold-Crank_Conditions
S Low-Dropout_Voltage_of_280mV_at_200mA
S Up_to_200mA_Output_Current_Capability
S Stable_Operation_with_Tiny_4.7µF_Output_Capacitor
S User-Selectable_Output_Voltage
+3.3V_or_+5V_Fixed
+1.5V_to_+11V_Adjustable_with_External
Features
MAX16910
____Resistive_Divider
S Open-Drain_RESET_Output_with_Adjustable_Delay
S Fixed-Reset_Threshold_Options:_87.5%_or_92.5%
S High-Voltage_Enable_Input_(+45V)
S Thermal_and_Short-Circuit_Protection
S Operating_-40°C_to_+125°C_Temperature_Range
S Operating_-40°C_to_+150°C_(T
J
)_Temperature_
Range
S Automotive_Qualified
Applications
Automotive
Industrial
Telecom
PART
MAX16910CATA_/V+
MAX16910CASA_/V+
5V FIXED OUTPUT
IN
1µF
ENABLE
+
-
14V
BATTERY
OUT
SETOV
4.7µF
10kI
V
CC
µC
I/O
RESET
Ordering Information
I
OUT
(mA)
TEMP
RANGE_(T
A
)
-40NC to
+125NC
-40NC to
+125NC
PIN-
PACKAGE
8 TDFN-EP*
(3mm x 3mm)
8 SO-EP*
(5mm x 4mm)
Typical Operating Circuits
200
200
MAX16910
SET
GND
RESET
TIMEOUT
1nF
(1.25ms DELAY)
Insert the desired suffix numbers (from the Selector Guide) into
the blank “_” to indicate reset threshold.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
*EP = Exposed pad.
Typical Operating Circuits continued on next page.
________________________________________________________________ _Maxim
Integrated Products_
_ 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
200mA, Automotive, Ultra-Low
Quiescent Current, Linear Regulator
MAX16910
Typical Operating Circuits (continued)
3.3V FIXED OUTPUT
IN
1µF
ENABLE
+
-
14V
BATTERY
MAX16910
SETOV
SET
GND
TIMEOUT
1nF
(1.25ms DELAY)
RESET
4.7µF
10kI
OUT
V
CC
µC
I/O
RESET
ADJUSTABLE OUTPUT
IN
1µF
ENABLE
+
-
14V
BATTERY
SET
GND
TIMEOUT
MAX16910
SETOV
R2
4.7µF
10kI
OUT
R1
V
CC
µC
I/O
RESET
RESET
1nF
(1.25ms DELAY)
2_ _ _______________________________________________________________________________________
200mA, Automotive, Ultra-Low
Quiescent Current, Linear Regulator
Pin Configurations
MAX16910
TIMEOUT
TOP VIEW
SETOV
GND
OUT
TOP VIEW
8
7
6
5
IN
1
+
MAX16910
*EP
8
7
6
5
OUT
GND
SETOV
TIMEOUT
ENABLE 2
MAX16910
+
1
IN
2
ENABLE
3
SET
*EP
4
RESET
SET
3
RESET 4
SO
*CONNECT EXPOSED PAD TO GND.
TDFN
*CONNECT EXPOSED PAD TO GND.
________________________________________________________________________________________ _ 3
200mA, Automotive, Ultra-Low
Quiescent Current, Linear Regulator
MAX16910
ABSOLUTE_MAXIMUM_RATINGS
(All voltages referenced to GND.)
IN, ENABLE, SET.................................................. -0.3V to +45V
OUT,
RESET
(open-drain output)............................-0.3V to +12V
SETOV, TIMEOUT....................................................-0.3V to +6V
Maximum Current (all pins except IN and OUT)...............50mA
Continuous Power Dissipation (TA = +70°C)
TDFN (derate 24.4mW/°C above +70°C)*.............1951mW
SO (derate 23.3mW/°C above +70°C)*................1861mW
*As per JEDEC51 Standard (multilayer board).
Operating Temperature Range..........................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range..............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Soldering Temperature (reflow) ......................................+260°C
PACKAGE_THERMAL_CHARACTERISTICS_(Note_1)
TDFN
Junction-to-Ambient Thermal Resistance (q
JA
) ...........41°C/W
Junction-to-Case Thermal Resistance (q
JC
)..................8°C/W
SO
Junction-to-Ambient Thermal Resistance (q
JA
) ...........43°C/W
Junction-to-Case Thermal Resistance (q
JC
)..................7°C/W
Note_1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maxim-ic.com/thermal-tutorial.
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_
(V
IN
= V
ENABLE
= +14V, C
TIMEOUT
= open, C
IN
= 1µF, C
OUT
= 4.7µF, unless otherwise noted. T
A
= -40°C to +125°C, T
A
P
T
J
P
+150°C, unless otherwise noted. Typical values are T
A
= +25°C.) (Note 2)
PARAMETER
Supply Voltage Range
Supply Current
Shutdown Supply Current
I
SHDN
SYMBOL
V
IN
Continuous
For
P
400ms
I
LOAD
= 0mA, SET = GND, V
OUT
= 5V
ENABLE = GND, T
A
= +25NC
ENABLE = GND, -40NC
P
T
A
P
+125NC
1mA
P
I
LOAD
P
200mA,
V
IN
= 6V to 30V (Note 3)
1mA
P
I
LOAD
P
50mA,
V
IN
= 6V to 30V, T
J
= +150°C (Notes 3, 4)
1mA
P
I
LOAD
P
200mA, V
IN
= 4.8V to 30V
(Note 3)
1mA
P
I
LOAD
P
50mA, V
IN
= 4.8V to 30V,
T
J
= +150°C (Notes 3, 4)
I
LOAD
= 1mA (Note 4)
I
LOAD
= 200mA, SET = GND, SETOV =
HIGH, V
OUT(NORM)
= +5.0V
Dropout Voltage (Note 5)
DV
DO
I
LOAD
= 50mA, SET = GND, SETOV =
HIGH, V
OUT(NORM)
= +5.0V, T
J
= +150°C
(Notes 3, 4)
4.9
4.9
3.234
3.234
1.5
1.225
1.25
280
20
1.6
3
5.0
5.0
3.3
3.3
5.1
V
5.1
3.366
V
3.366
11.0
1.275
600
mV
600
V
V
CONDITIONS
MIN
3.5
TYP
MAX
30
45
30
3
UNITS
V
FA
FA
Output Voltage
(5V Fixed Output Setting)
V
OUT50
Output Voltage
(3.3V Fixed Output Setting)
Adjustable Output-Voltage Range
SETOV FB Voltage
V
OUT33
V
OUT
V
SETOV
4_ _ _______________________________________________________________________________________
200mA, Automotive, Ultra-Low
Quiescent Current, Linear Regulator
ELECTRICAL_CHARACTERISTICS_(continued)
PARAMETER
Short-Circuit Output Current Limit
Thermal Shutdown
Thermal Shutdown Hysteresis
Line Regulation
(5V Fixed Output Setting)
Line Regulation
(3.3V Fixed Output Setting)
Load Regulation
(5V Fixed Output Setting)
Load Regulation
(3.3V Fixed Output Setting)
Power-Supply Rejection Ratio
Startup Response Time
TIMEOUT_INPUT
TIMEOUT Ramp Current
TIMEOUT Ramp Delay
RESET
Default Timeout Period
RESET_OUTPUT
RESET
Threshold
RESET
Threshold Hysteresis
OUT to
RESET
Delay
RESET
Output-Voltage Low
(Open-Drain)
RESET
Open-Drain Leakage
Current
RESET
Open-Drain Leakage
Current
ENABLE
ENABLE Logic-Low
ENABLE Logic-High
ENABLE Pulldown Current
SET_INPUT
SET Input Current (All Modes)
SET Logic-Low
Set Logic-High
V
ILSET
V
IHSET
2.4
T
A
= +25NC
T
J
= +150NC
-50
0.2
0.4
+50
nA
FA
V
V
V
IL
V
IH
(Note 7)
2.4
0.65
0.4
V
V
FA
V
OL
V
OUT
rising, TIMEOUT = OPEN
MAX16910__9/V+, V
OUT
falling
MAX16910__8/V+, V
OUT
falling
V
OUT
rising
V
OUT
falling (Note 6)
I
SINK
= 0.5mA,
RESET
asserted
RESET
not asserted,
RESET
= 7V,
T
A
= +25NC
RESET
not asserted,
RESET
= 7V
0.03
30
90
85
I
TO
TIMEOUT connected to GND
0.600
1.0
1.25
60
92.5
87.5
5
4
0.4
1
90
94
89
1.650
FA
ms/nF
Fs
% of
V
OUT
% of
V
OUT
Fs
V
FA
FA
PSRR
t
START
SYMBOL
I
SC
(Note 6)
(Note 6)
V
IN
= 6V to 30V, I
LOAD
= 1mA
V
IN
= 4.8V to 30V, I
LOAD
= 1mA
I
LOAD
= 1mA to 200mA
I
LOAD
= 1mA to 200mA
I
LOAD
= 10mA, f = 100Hz, 500mV
P-P
(Note 6)
Rising edge of V
IN
to V
OUT
, I
LOAD
= 50mA
(Note 6)
MAX16910
(V
IN
= V
ENABLE
= +14V, C
TIMEOUT
= open, C
IN
= 1µF, C
OUT
= 4.7µF, unless otherwise noted. T
A
= -40°C to +125°C, T
A
P
T
J
P
+150°C, unless otherwise noted. Typical values are T
A
= +25°C.) (Note 2)
CONDITIONS
Output shorted to GND (MAX16910C__)
MIN
230
TYP
330
+180
+25
1
1
12
12
60
160
MAX
UNITS
mA
NC
NC
mV
mV
mV
mV
dB
Fs
________________________________________________________________________________________ _ 5
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