Rainbow Electronics MAX16910 User Manual
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 batteryoperated systems. The device operates from a +3.5V to
+30V input voltage, delivers up to 200mA of load current, 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 voltage (+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 operates over the -40°C to +125°C automotive temperature
range. The device is available in a space-saving, thermally enhanced, 3mm x 3mm, 8-pin TDFN package and
5mm x 4mm, 8-pin SO package.
MAX16910
Features
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
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
Typical Operating Circuits
5V FIXED OUTPUT
IN
1µF
+
14V
BATTERY
-
Typical Operating Circuits continued on next page.
ENABLE
SET
GND
MAX16910
TIMEOUT
OUT
SETOV
RESET
1nF
(1.25ms DELAY)
4.7µF
10kI
V
CC
RESET
µC
I/O
Ordering Information
I
PART
MAX16910CATA_/V+ 200
MAX16910CASA_/V+ 200
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.
OUT
(mA)
TEMP
RANGE
-40NC to
+125NC
-40NC to
+125NC
PINPACKAGE
8 TDFN-EP*
(3mm x 3mm)
8 SO-EP*
(5mm x 4mm)
_______________________________________________________________ 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
Typical Operating Circuits (continued)
Quiescent Current, Linear Regulator
3.3V FIXED OUTPUT
MAX16910
IN
1µF
+
14V
BATTERY
-
1µF
+
14V
BATTERY
-
ENABLE
SET
GND
ADJUSTABLE OUTPUT
IN
ENABLE
SET
GND
MAX16910
TIMEOUT
MAX16910
TIMEOUT
SETOV
RESET
1nF
(1.25ms DELAY)
OUT
SETOV
RESET
1nF
(1.25ms DELAY)
OUT
4.7µF
R1
R2
4.7µF
V
10kI
RESET
V
10kI
RESET
CC
µC
CC
µC
I/O
I/O
2 ______________________________________________________________________________________
200mA, Automotive, Ultra-Low
Quiescent Current, Linear Regulator
Pin Configurations
TOP VIEW
OUT
8172635
MAX16910
+
IN
*CONNECT EXPOSED PAD TO GND.
GND
ENABLE
TDFN
SETOV
SET
TIMEOUT
*EP
4
RESET
TOP VIEW
+
1
IN
2
MAX16910
3
SET
RESET
4
*CONNECT EXPOSED PAD TO GND.
*EP
SO
87OUT
GNDENABLE
SETOV
6
TIMEOUT
5
MAX16910
_______________________________________________________________________________________ 3
200mA, Automotive, Ultra-Low
Quiescent Current, Linear Regulator
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)
8-Pin TDFN (derate 24.4mW/°C above +70°C)*.............1951mW
8-Pin SO (derate 23.3mW/°C above +70°C)*................1861mW
MAX16910
*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
(VIN = V
otherwise noted. Typical values are TA = +25°C.) (Note 2)
ENABLE
= +14V, C
TIMEOUT
= open, CIN = 1µF, C
OUT
Junction-to-Case Thermal Resistance (ΘJC) (Note 1)
8-Pin TDFN.......................................................................8°C/W
8-Pin SO...........................................................................7°C/W
Junction-to-Ambient Thermal Resistance (ΘJA) (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
= 4.7µF, unless otherwise noted. TA = TJ = -40°C to +125°C, unless
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
Supply Current I
Shutdown Supply Current I
Output Voltage
(5V Fixed Output Setting)
Output Voltage
(3.3V Fixed Output Setting)
Adjustable Output-Voltage Range V
SETOV FB Voltage V
Dropout Voltage (Note 4) DV
Short-Circuit Output Current Limit I
Thermal Shutdown (Note 5) +180 NC
SHDN
V
OUT50
V
OUT33
OUT
SETOVILOAD
SC
Continuous 3.5 30
IN
For P 400ms 45
= 0, SET = GND, V
LOAD
ENABLE = GND, TA = +25NC 1.6 3
ENABLE = GND, -40NC P TA P +125NC 3
1mA P I
VIN = 6V to 30V (Note 3)
1mA P I
(Note 3)
I
LOAD
DO
HIGH, V
Output shorted to GND (MAX16910C__) 230 330 mA
P 200mA,
LOAD
P 200mA, VIN = 4.8V to 30V
LOAD
= 1mA 1.225 1.25 1.275 V
= 200mA, SET = GND, SETOV =
OUT(NORM)
= +5.0V
= 5V 20 30 FA
OUT
4.9 5.0 5.1 V
3.234 3.3 3.366 V
1.5 11.0 V
280 600 mV
FA
V
4 ______________________________________________________________________________________
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