MAX16999(2008) Просмотр технического описания (PDF) - Maxim Integrated
Номер в каталоге
Компоненты Описание
производитель
MAX16999
(Rev.:2008)
(Rev.:2008)
Maxim Integrated
MAX16999 Datasheet PDF : 10 Pages
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Ultra-Low Output Voltage, Low-Quiescent-Current
Linear Regulator for High-Temperature Applications
Typical Operating Characteristics (continued)
(For devices with VOUT < 1.5V, VIN = 3.3V. For devices with VOUT > 1.5V, VIN = 5V. EN = IN, CIN = 1µF, COUT = 4.7µF, CCRES = 1000pF,
TA = + 25°C, unless otherwise noted.)
LINE/RESET RESPONSE
MAX16999 toc16
VIN
2V/div
0
VOUT
VRESET
500mV/div
0
5V
0
VOUT = 0.5V, IOUT = 50mA, CCRES = 15,000pF
2ms/div
RESET TIMEOUT
vs. CRES CAPACITANCE
30
CRES PULLUP CURRENT
vs. TEMPERATURE
20
VOUT = 1V, CCRES = 15,000pF
18
16
14
12
10
8
6
4
2
0
-50 -25
0 25 50 75 100 125 150
TEMPERATURE (°C)
SHORT-CIRCUIT RESPONSE
MAX16999 toc19
25
VOUT
5V
0
20
15
10
5
0
0
100 200 300 400 500
CRES CAPACITANCE (nF)
VRESET
IOUT
200μs/div
5V
0
5A
0
VOUT = 3.3V
Pin Description
PIN NAME
FUNCTION
1, 2
OUT Regulator Output. Bypass OUT to GND with a 4.7µF ceramic capacitor. OUT becomes high impedance when
EN is low.
3
CRES POR Timer. Bypass CRES to GND with a ceramic capacitor to define POR timing (see the POR Timer section).
4
RESET
Open-Drain, Active-Low Reset Output. RESET is high impedance when output is in regulation or if the IC is in
shutdown. RESET is pulled low when VOUT drops below 82.5% (typ) of its nominal voltage.
5
GND Ground. Connect GND to a large circuit board ground plane and directly to the exposed paddle.
6
EN
Active-High Enable Input. Drive EN low to place the regulator in standby mode. Drive EN high or connect to IN
for normal operation.
7, 8
IN
Regulator Input. Bypass IN to GND with at least a 1µF ceramic capacitor.
—
EP
Exposed Paddle. Connect EP to a large pad or circuit board ground plane to maximize power dissipation. EP
serves as a heatsink.
6 _______________________________________________________________________________________
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