Micropower 400 mA
LDO Linear Regulators
with ENABLE, DELAY,
and RESET
The NCV8505 is a family of precision micropower voltage
regulators. Their output current capability is 400 mA. The family has
output voltage options for Adjustable, 2.5 V, 3.3 V and 5.0 V.
The output voltage is accurate within ± 2.0% with a maximum
dropout voltage of 0.6 V at 400 mA. Low quiescent current is a feature
drawing less than 1.0 µA w ith E NABLE = 0 V. With ENABLE = 5.0 V,
the part only draws 200 µA with 100 µA load. This part is ideal for any
and all battery operated microprocessor equipment.
Microprocessor control logic includes an active RESET
DELAY).
The active RESET circuit operates correctly at an output voltage as
low as 1.0 V. The RESET
function is activated during the power up
sequence or during normal operation if the output voltage drops below
the regulation limits.
The regulator is protected against reverse battery, short circuit, and
thermal overload conditions. The device can withstand load dump
transients making it suitable for use in automotive environments. The
device has also been optimized for EMC conditions.
Features
• Output Voltage Options: Adjustable, 2.5 V, 3.3 V, 5.0 V
• ± 2.0% Output
• Low < 1.0 µA Sleep Current
• Low 200 µA Quiescent Current
• Fixed or Adjustable Output Voltage
• Active RESET
• ENABLE
• 400 mA Output Current Capability
• Fault Protection
♦ +60 V Peak Transient Voltage
♦ −15 V Reverse Voltage
♦ Short Circuit
♦ Thermal Overload
• NCV Prefix for Automotive and Other Applications Requiring Site
and Change Control
(with
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MARKING
DIAGRAM
NCV8505x
AWLYYWW
2
D
PAK−7
DPS SUFFIX
CASE 936AB
x= Voltage Ratings as Indicated Below:
A = Adjustable
2 = 2.5 V
3 = 3.3 V
5 = 5.0 V
A= Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
1
Semiconductor Components Industries, LLC, 2004
January, 2004 − Rev. 3
1Publication Order Number:
NCV8505/D
NCV8505 Series
PIN CONNECTIONS
FIXED OUTPUTADJUSTABLE OUTPUT
Tab = GND
Lead 1. DELAY
2. ENABLE
3. RESET
4. GND
5. V
ADJ
6. V
OUT
7. V
1
IN
1
Tab = GND
Lead 1. DELAY
2. ENABLE
3. RESET
4. GND
5. SENSE
6. V
OUT
7. V
IN
SENSE
I
V
BAT
Q
10 µF
C
DELAY
(Fixed Output Only)
V
IN
NCV8505
DELAY
V
OUT
V
ADJ
(Adjustable
Output Only)
R
RST
5.1 k
33 µF
V
DD
Microprocessor
ENABLE
GND
RESET
Figure 1. Application Diagram
I/O
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2
NCV8505 Series
MAXIMUM RATINGS*
RatingValueUnit
V
(DC)−15 to 45V
IN
Peak Transient Voltage (46 V Load Dump @ VIN = 14 V)60V
Operating Voltage45V
V
(DC)16V
OUT
Voltage Range (RESET, DELAY)−0.3 to 10V
Input Voltage Range:V
ADJ
Input Voltage Range (ENABLE)−0.3 to 10**V
ESD Susceptibility(Human Body Model)
(Machine Model)
Junction Temperature, T
Storage Temperature, T
Package Thermal Resistance, 7 Lead D2PAKJunction−to−Case, R
J
S
θ
Junction−to−Ambient, R
JC
θ
JA
Lead Temperature Soldering:Reflow: (SMD styles only) (Note 1)240 peak (Note 2)°C
1. 60 second maximum above 183°C.
2. −5°C/+0°C allowable conditions.
*The maximum package power dissipation must be observed.
**Reference Figure 14 for switched−battery ENABLE application.
= R
+ R
***Depending on thermal properties of substrate, R
†During the voltage range which exceeds the maximum tested voltage of V
JA
JC
Thermal dissipation must be observed closely.
.
CA
, operation is assured, but not specified. Wider limits may apply.
IN
−0.3 to 16V
4.0
200
−40 to +150°C
−55 to 150°C
2.0
10−50***
kV
V
°C/W
°C/W
ELECTRICAL CHARACTERISTICS (I
= 1.0 mA, ENABLE = 5.0 V, −40°C ≤ T
OUT
≤ 150°C; VIN = dependent on voltage option
J
(Note 3); unless otherwise specified.)
Characteristic
Test ConditionsMinTypMaxUnit
Output Stage
Output Voltage for 2.5 V Option (V
Output Voltage for 3.3 V Option (VO)7.3 V < VIN < 16 V, 1.0 mA ≤ I
Output Voltage for 5.0 V Option (VO)9.0 V < VIN < 16 V, 1.0 mA ≤ I
Output Voltage for Adjustable Option
(V
)
O
Dropout Voltage (VIN − V
OUT
(5.0 V and Adj. > 5.0 V Options Only)
Load RegulationVIN = 14 V, 5.0 mA ≤ I
Line Regulation (2.5 V, 3.3 V, and
)6.5 V < VIN < 16 V, 1.0 mA ≤ I
O
)
4.5 V < V
4.5 V < V
6.0 V < V
V
= V
OUT
6.5 V < V
4.5 V < V
I
= 400 mA
OUT
I
= 1.0 mA
OUT
< 26 V, 1.0 mA ≤ I
IN
< 26 V, 1.0 mA ≤ I
IN
< 26 V, 1.0 mA ≤ I
IN
(Unity Gain)
ADJ
< 16 V, 1.0 mA < I
IN
< 26 V, 1.0 mA < I
IN
4.5 V < VIN < 26 V, I
≤ 400 mA
OUT
≤ 400 mA
OUT
≤ 400 mA
OUT
≤ 400 mA
OUT
≤ 400 mA
OUT
≤ 400 mA
OUT
< 400 mA
OUT
< 400 mA
OUT
≤ 400 mA−305.030mV
OUT
= 1.0 mA−5.025mV
OUT
2.450
2.425
3.234
3.201
4.90
4.85
1.274
1.261
−
−
2.5
2.5
3.3
3.3
5.0
5.0
1.300
1.300
400
30
2.550
2.575
3.366
3.399
5.10
5.15
1.326
1.339
600
150
Adjustable Options)
Line Regulation (5.0 V Option)6.0 V < VIN < 26 V, I
Quiescent Current, (IQ) Active ModeI