OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX15008ATJ+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
MAX15008/MAX15010
Automotive 300mA LDO Voltage Regulators
with Tracker Output and Overvoltage Protector
10 ______________________________________________________________________________________
Pin Description
PIN
MAX15008 MAX15010
NAME FUNCTION
1, 2, 8, 11,
23, 24, 26,
27, 28, 31,
32
1, 2, 8,
10–13, 18,
23, 24, 26,
27, 28, 31,
32
N.C. No Connection. Not internally connected.
3 3 OUT_TRK
Tracker Output. Bypass OUT_TRK to SGND with a 10µF (min) capacitor with low ESR
(≤ 1.5Ω).
4 4 ADJ
Tracker Amplifier Input. Connect ADJ to OUT_LDO or to an external source to track.
Alternatively, connect ADJ to REF to provide the reference voltage to the tracker.
5 5 SGND Signal Ground
6 6 PGND
Ground. PGND is also the return path for the overvoltage protector pulldown current for
the MAX15008. In this case, connect PGND to SGND at the negative terminal of the
bypass capacitor connected to the source of the external MOSFET. For the MAX15010,
connect PGND to SGND together to the local ground plane.
77RESET
Active-Low Open-Drain Reset Output. RESET is low while OUT_LDO is below the reset
threshold. Once OUT_LDO has exceeded the reset threshold, RESET remains low for
the duration of the reset timeout period before going high.
99CT
Reset Timeout Adjust Input. Connect a capacitor (C
RESET
) from CT to ground to adjust
the reset timeout period. See the Setting the
RESET
Timeout Period section.
10 — FB_PROT
Overvoltage Threshold Adjustment Input. Connect FB_PROT to an external resistive
voltage-divider network to adjust the desired overvoltage threshold. Use FB_PROT to
monitor a system input or output voltage. See the Setting the Overvoltage Threshold
(MAX15008 Only) section.
12 — GATE
P r otector Gate D r i ve O utp ut. C onnect GATE to the g ate of an exter nal n- channel M OS FE T.
G ATE i s the outp ut of a char g e p um p w i th a 45µA p ul l up cur r ent to 7.1V ( typ ) ab ove IN
d ur i ng nor m al op er ati on. GATE i s q ui ckl y tur ned off thr oug h a 63m A i nter nal p ul l d ow n
d ur i ng an over vol tag e cond i ti on. G ATE then r em ai ns l ow unti l FB_P RO T has d ecr eased
96% b el ow the thr
eshol d . GATE p ul l s l ow w hen E N _P RO T i s l ow .
13 — SOURCE
Output-Voltage Sense Input. Connect SOURCE to the source of the external n-channel
MOSFET.
14 14 REF 1.235V Voltage Reference Output. Bypass REF to SGND with a 1nF or larger capacitor.
MAX15008/MAX15010
Automotive 300mA LDO Voltage Regulators
with Tracker Output and Overvoltage Protector
______________________________________________________________________________________ 11
Pin Description (continued)
PIN
MAX15008 MAX15010
NAME FUNCTION
15 15 FB_LDO
LDO Voltage Feedback Input. Connect FB_LDO to SGND to select the preset +5V
output voltage. Connect FB_LDO to an external resistive voltage-divider for adjustable
output operation. See the Setting the Output Voltage section.
16 16 EN_LDO
Active-High LDO Enable Input. Connect EN_LDO to IN or to a logic-high voltage to turn
on the regulator. To place the LDO in shutdown, pull EN_LDO low or leave unconnected
and leave HOLD unconnected. EN_LDO is internally pulled to SGND through a 1µA
current sink. See the Control Logic section.
17 17 EN_TRK
Active-High Tracker Enable Input. Connect EN_TRK to IN or to a logic-high voltage to
turn on the tracker. Pull EN_TRK low or leave unconnected to place tracker in
shutdown. EN_TRK is internally pulled to SGND through a 1µA current sink.
18 — EN_PROT
Protector Enable Input. Drive EN_PROT low to force GATE low and turn off the external
n-channel MOSFET. EN_PROT is internally pulled to SGND by a 1µA sink. Connect
EN_PROT to IN for normal operation.
19, 20 19, 20 IN Regulator Input. Bypass IN to SGND with a 10µF capacitor (ESR ≤ 1.5Ω).
21, 22 21, 22 OUT_LDO
LDO Regulator Output. Bypass OUT_LDO to SGND with a low-ESR capacitor with a
minimum value of 22µF. Fixed +5V or adjustable output (+1.8V to +11V). See the
Setting the Output Voltage section.
25 25 HOLD
Active-Low Hold Input. If EN_LDO is high when HOLD is forced low, the regulator
latches the state of the EN_LDO input and allows the regulator to remain turned on
when EN_LDO is subsequently pulled low. To shut down the regulator, release HOLD
after EN_LDO is pulled low. If HOLD functionality is unused, connect HOLD to
OUT_LDO or leave unconnected. HOLD is internally pulled up to OUT_LDO through a
0.6µA current source. See the Control Logic section.
29 29 FB_TRK
Tracker Amplifier Feedback. Connect FB_TRK directly to OUT_TRK or through an
external resistive voltage-divider.
30 30 TRACK Tracker Input. Bypass TRACK to the SGND with a 3.3µF ceramic capacitor.
EP EP EP
Exposed Pad. Connect EP to SGND plane. EP also functions as a heatsink to maximize
thermal dissipation. Do not use as the main ground connection.
MAX15008/MAX15010
Automotive 300mA LDO Voltage Regulators
with Tracker Output and Overvoltage Protector
12 ______________________________________________________________________________________
Functional Diagram
BIAS AND VOLTAGE
REFERENCE
REVERSE-BATTERY
PROTECTION
CONTROL
LOGIC
V
REF
1.235V
OUT_LDO
FB_LDO
CT
RESET
OUT_TRK
FB_TRK
GATE
V
IN
SOURCE
M
U
X
0.125V
5V LDO
OUTPUT
TRACKER
OUTPUT
PROTECTOR
OUTPUT
RESET
OUTPUT
IN
LDO
IN
REF
5V TO 40V
V
IN
TRACK
ADJ
-20V TO +40V
EN_TRK
TRACKER
ENABLE
TRACKER
EN_PROT
EP SGND PGND
ENABLE
PROTECTOR
EN_LDO
ENABLE LDO
HOLD
HOLD
2μA
0.92 x V
REF
V
REF
4.75V
IN
GATE UVLO
V
REF
V
REF
OVERVOLTAGE PROTECTOR
(MAX15008 ONLY)
FB_PROT
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

MAX15008ATJ+T

Mfr. #:
Buy MAX15008ATJ+T
Manufacturer:
Maxim Integrated
Description:
LDO Voltage Regulators Automotive 300mA w/Tracker Output
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet