19-4816; Rev 0; 7/09
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
Features
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
MAX16910
+3.3V or +5V Fixed
+1.5V to +11V Adjustable with External
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
Automotive Qualified
Applications
Automotive
Industrial
Telecom
PART
MAX16910CATA_/V+
MAX16910CASA_/V+
Ordering Information
I
OUT
(mA)
TEMP
RANGE
-40NC to
+125NC
-40NC to
+125NC
PIN-
PACKAGE
8 TDFN-EP*
(3mm x 3mm)
8 SO-EP*
(5mm x 4mm)
200
200
Typical Operating Circuits
5V FIXED OUTPUT
IN
1µF
ENABLE
+
-
14V
BATTERY
OUT
SETOV
4.7µF
10kI
V
CC
µC
I/O
RESET
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.
MAX16910
SET
GND
RESET
TIMEOUT
1nF
(1.25ms DELAY)
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
ENABLE 2
+
MAX16910
*EP
8
7
6
5
OUT
GND
SETOV
TIMEOUT
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 (T
A
= +70°C)
8-Pin TDFN (derate 24.4mW/°C above +70°C)*.............1951mW
8-Pin SO (derate 23.3mW/°C above +70°C)*................1861mW
Junction-to-Case Thermal Resistance (Θ
JC
) (Note 1)
8-Pin TDFN.......................................................................8°C/W
8-Pin SO...........................................................................7°C/W
Junction-to-Ambient Thermal Resistance (Θ
JA
) (Note 1)
8-Pin TDFN.....................................................................41°C/W
8-Pin SO.........................................................................43°C/W
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
*As per JEDEC51 Standard (multilayer board).
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
= T
J
= -40°C to +125°C, unless
otherwise noted. Typical values are T
A
= +25°C.) (Note 2)
PARAMETER
Supply Voltage Range
Supply Current
Shutdown Supply Current
Output Voltage
(5V Fixed Output Setting)
Output Voltage
(3.3V Fixed Output Setting)
Adjustable Output-Voltage Range
SETOV FB Voltage
Dropout Voltage (Note 4)
Short-Circuit Output Current Limit
Thermal Shutdown
I
SHDN
V
OUT50
V
OUT33
V
OUT
V
SETOV
DV
DO
I
SC
I
LOAD
= 1mA
I
LOAD
= 200mA, SET = GND, SETOV =
HIGH, V
OUT(NORM)
= +5.0V
Output shorted to GND (MAX16910C__)
(Note 5)
230
SYMBOL
V
IN
Continuous
For
P
400ms
I
LOAD
= 0, 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
200mA, V
IN
= 4.8V to 30V
(Note 3)
4.9
3.234
1.5
1.225
1.25
280
330
+180
20
1.6
3
5.0
3.3
5.1
3.366
11.0
1.275
600
CONDITIONS
MIN
3.5
TYP
MAX
30
45
30
3
UNITS
V
FA
FA
V
V
V
V
mV
mA
NC
4
______________________________________________________________________________________
200mA, Automotive, Ultra-Low
Quiescent Current, Linear Regulator
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
ENABLE
= +14V, C
TIMEOUT
= open, C
IN
= 1µF, C
OUT
= 4.7µF, unless otherwise noted. T
A
= T
J
= -40°C to +125°C, unless
otherwise noted. Typical values are T
A
= +25°C.) (Note 2)
PARAMETER
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
A
= +125NC
-50
0.2
0.4
+50
nA
FA
V
V
V
IL
V
IH
(Note 6)
2.4
0.65
0.4
V
V
FA
V
OL
MAX16910__9/V+, V
OUT
falling
MAX16910__8/V+, V
OUT
falling
V
OUT
rising
V
OUT
falling (Note 5)
I
SINK
= 0.5mA,
RESET
asserted
RESET
not asserted,
RESET
= 7V,
T
A
= +25NC
RESET
not asserted,
RESET
= 7V,
-40NC ≤ T
A
≤ +125NC
0.03
90
85
92.5
87.5
5
4
0.4
1
94
89
% of
V
OUT
% of
V
OUT
Fs
V
FA
FA
V
OUT
rising, TIMEOUT = OPEN
30
I
TO
TIMEOUT connected to GND
0.600
1.0
1.25
60
90
1.650
nA
ms/nF
Fs
PSRR
t
START
SYMBOL
(Note 5)
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 5)
Rising edge of V
IN
to V
OUT
, I
LOAD
= 50mA
(Note 5)
CONDITIONS
MIN
TYP
+25
1
1
12
12
60
160
MAX
UNITS
NC
mV
mV
mV
mV
dB
Fs
MAX16910
_______________________________________________________________________________________
5
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