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19-2035; Rev 0; 5/01
150mA USB LDO Regulators with ±15kV TVS
and µP Reset
General Description
The MAX5005/MAX5006/MAX5007 are low-dropout
(LDO), micropower linear voltage regulators with an
integrated microprocessor (µP) reset circuit for use with
USB peripheral devices. Each device is available with a
fixed +3.3V output voltage and can deliver up to
150mA load current. Each device features ±15kV tran-
sient voltage suppression (TVS) as well as precision
1.5kΩ data-line termination resistors for USB digital sig-
nals making them ideal for use with USB peripherals.
The MAX5005/MAX5006/MAX5007 include an internal
reset circuit that enables the USB microcontroller
100ms after the LDO regulator output voltage reaches
regulation. Reset outputs are available in push-pull
(active-low or active-high) and open-drain (active-low)
options.
The MAX5005/MAX5006/MAX5007 are optimized for
use with a 1µF ceramic output capacitor. Each device
includes thermal shutdown protection, output short-cir-
cuit protection, and output to input reverse leakage pro-
tection. These devices also include an active-low
manual reset input.
The MAX5005 features an open-drain reset output, the
MAX5006 features an active-low push-pull reset output,
and the MAX5007 features an active-high push-pull
reset output. Each device is available in a space-saving
10-pin µMAX package.
Features
o
Integrated ±15kV Transient Voltage Suppressors
for D+ and D- Data Lines
o
Pin Selectable Internal D+ and D- Termination
Resistors (1.5kΩ ±5%)
o
Integrated Microprocessor Reset Circuit with
100ms (min) Timeout
o
3.3V Output with ±3% Accuracy
o
25µA Quiescent Current at Full Load
o
Small 1µF Output Capacitor
o
Output to Input Reverse Leakage Protection
o
Thermal and Short-Circuit Protection
o
10-Pin µMAX Package
MAX5005/MAX5006/MAX5007
Ordering Information
PART
MAX5005_EUB*
MAX5006_EUB*
MAX5007_EUB*
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
10 µMAX
10 µMAX
10 µMAX
RESET
OUTPUT
Open-
Drain Low
Push-Pull
Low
Push-Pull
High
Applications
USB Peripherals
Hand-Held Instruments
*Insert
“A” for a 7.5% reset threshold and “B” for a 12.5% reset
threshold.
Typical Operating Circuit
USB
PORT
V
BUS
C
IN
3.3V USB
CONTROLLER
SELR
5V IN
1µF
CERAMIC
ENR
3.3V
OUT
C
OUT
1µF
MAX5005
MAX5006
MAX5007
RESET
(RESET)
MR
GND
GND
V
CC
Pin Configuration
TOP VIEW
IN
1
10
OUT
9
GND
MR
RESET/(RESET)
ENR
D+
D-
GND
D+
D-
RST
D+
D-
D+
GND
D-
SELR
2
3
4
5
MAX5005
MAX5006
MAX5007
8
7
6
27Ω
27Ω
( ) FOR MAX5007 ONLY
µMAX
() FOR MAX5007 ONLY.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
150mA USB LDO Regulators with ±15kV TVS
and µP Reset
MAX5005/MAX5006/MAX5007
ABSOLUTE MAXIMUM RATINGS
IN to GND .................................................................-0.3V to +6V
D+, D- to GND..........................................................-0.3V to +6V
MR
to GND ..............................................-0.3V to (V
OUT
+ 0.3V)
RESET,
RESET
to GND, Push-Pull............-0.3V to (V
OUT
+ 0.3V)
RESET to GND, Open-Drain.....................................-0.3V to +6V
OUT, SELR,
ENR
to GND .........................................-0.3V to +6V
Maximum Current to Any Pin
(except IN, OUT, D+, D-).............................................± 20mA
Short-Circuit Duration ....................................................Indefinite
Continuous Power Dissipation (T
A
= +70°C)
10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW
Thermal Resistance (θ
JA
)...............................................180°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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
= +5V, I
OUT
= 0, C
OUT
= 2.2µF, T
A
= -40°C to +85°C, unless otherwise noted. Typical specifications are at T
A
= +25°C.) (Note 1)
PARAMETER
Input Voltage Range
Supply Current
REGULATOR
Guaranteed Output Current
Output Voltage
Dropout Voltage (Note 2)
Output Current Limit
Input Reverse Leakage Current
Startup Response Time
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
RESET CIRCUIT
Reset Threshold
(Note 3)
Reset Timeout Period
V
OUT
to Reset Delay
V
TH
t
RP
t
RD
V
IL
MR
Input Voltage
V
IH
MR
Minimum Input Pulse Width
MR
Glitch Rejection
MR
to Reset Delay
MR
Pullup Resistance to OUT
V
IL
SELR Input Voltage
V
IH
Connects R
TERM
to D+
0.8 x
V
OUT
Connects R
TERM
to D-
10
0.8 x
V
OUT
1
120
500
25
45
0.2 x
V
OUT
MAX500_AEUB
MAX500_BEUB
2.92
2.75
100
3.05
2.89
200
75
0.2 x
V
OUT
3.18
3.01
300
V
ms
µs
T
JSHDN
∆
T
JSHDN
I
OUT
V
OUT
∆V
DO
V
IN
= 4.0V to 5.5V, I
OUT
= 0 to 100mA
I
LOAD
= 10mA
I
LOAD
= 150mA
V
IN
= 5.5V
V
IN
= 0, V
OUT
= 5.5V
Rising edge of V
IN
to V
OUT
R
L
= 500Ω
165
150
3.2
3.3
20
300
350
1
500
160
20
3.4
30
400
mA
V
mV
mA
µA
µs
o
o
SYMBOL
V
IN
I
GND
I
LOAD
= 100mA
CONDITIONS
Measured at GND
MIN
4.0
TYP
25
MAX
5.5
50
UNITS
V
µA
C
C
V
µs
ns
ns
kΩ
V
2
_______________________________________________________________________________________
150mA USB LDO Regulators with ±15kV TVS
and µP Reset
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= +5V, I
OUT
= 0, C
OUT
= 2.2µF, T
A
= -40°C to +85°C, unless otherwise noted. Typical specifications are at T
A
= +25°C.) (Note 1)
PARAMETER
SELR Input Current
V
IL
ENR
Input Voltage
V
IH
ENR
Input Current
Open-Drain
RESET
Output Low
Voltage (MAX5005)
Open-Drain Reset Output Leakage
Current (MAX5005)
V
OL
I
LKG
R
TERM
disabled
ENR
= GND or OUT
V
OUT
> 1.0V, I
SINK
= 50µA, reset asserted
V
OUT
> 2.7V, I
SINK
= 3.2mA, reset asserted
Reset not asserted
V
OUT
= 1.0V, I
SINK
= 50µA, reset asserted
Push-Pull
RESET
Output Voltage
(MAX5006)
V
OL
V
OUT
> V
TH(MIN)
, I
SINK
= 3.2mA, reset
asserted
V
OUT
> V
TH(MAX)
, I
SOURCE
= 500µA,
reset not asserted
V
OUT
> V
TH(MAX)
, I
SINK
= 3.2mA,
reset not asserted
V
OUT
= 1.0V, I
SOURCE
= 150µA, reset
asserted
ENR
= GND, SELR = GND or OUT
V
ENR
= V
OUT
= 3.3V
1MHz, 100mVp-p signal
applied at D+ and D-,
V
OUT
= 3.3V
1MHz, 100mVp-p signal
applied at D+ and D-,
V
OUT
= 3.3V
ENR
= OUT
Unpowered
ENR
= OUT
Unpowered
3.6
3.6
0.8 x
V
OUT
1425
-1
5.5
pF
24
40
pF
47
5
16
16
±6
±16
±8
±15
kV
V
V
V
A
1500
1575
1
Ω
µA
0.8 x
V
OUT
0.4
V
V
OH
-1.0
0.8 x
V
OUT
-1
1
0.3
0.4
1.0
0.3
0.4
V
µA
V
µA
SYMBOL
CONDITIONS
SELR = GND or OUT
R
TERM
enabled
MIN
-1
TYP
MAX
1
0.2 x
V
OUT
UNITS
µA
MAX5005/MAX5006/MAX5007
V
V
OH
V
OL
Push-Pull RESET Output Voltage
(MAX5007)
USB OPTIONS AND TRANSIENT SUPPRESSION
D+/D- R
TERM
Impedance
D+/D- Input Leakage Current
D+ to D- Capacitance
D+, D- Capacitance to GND
ESD Trigger Voltage
Surge Trigger Voltage
Clamping Voltage
Surge Current
dV/dt < 1V/ns, V
D+
or V
D-
> 3.6V
dV/dt < 2V/µs, V
D+
or V
D-
> 3.6V
6A, pulse width = 200ns to 40µs
16V, pulse width = 200ns to 40µs
Human Body Model MIL-STD-883
Contact Discharge IEC1000-4-2
(EN61000-4-2)
Air Discharge IEC1000-4-2 (EN61000-4-2)
D+/D- to GND ESD
Note 1:
All devices are 100% tested at T
A
= +25°C. Limits over temperature are guaranteed by characterization and not production
tested.
Note 2:
Dropout voltage is defined as V
IN
- V
OUT
when V
OUT
is 2% below the value of V
OUT
for V
IN
= V
OUT
+ 1V.
Note 3:
Specification is guaranteed to ±4σ limit.
_______________________________________________________________________________________
3
150mA USB LDO Regulators with ±15kV TVS
and µP Reset
MAX5005/MAX5006/MAX5007
Typical Operating Characteristics
(V
IN
= +5V, I
OUT
= 0, C
OUT
= 2.2µF, unless otherwise noted.)
GROUND-PIN CURRENT
vs. SUPPLY VOLTAGE
26.5
GROUND-PIN CURRENT (µA)
26.0
25.5
25.0
24.5
24.0
23.5
23.0
22.5
22.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
I
OUT
= 0
0
1
10
100
RESET THRESHOLD OVERDRIVE, V
TH
- V
OUT
(mV)
I
OUT
= 150mA
MAX5005-7 toc01
MAXIMUM PULSE DURATION vs.
RESET THRESHOLD OVERDRIVE
MAX5005-7 toc02
DROPOUT VOLTAGE
vs. LOAD CURRENT
300
275
250
225
200
175
150
125
100
75
50
25
0
0
LOAD CURRENT (mA)
MAX5005-7 toc03
27.0
250
150
RESET OCCURS ABOVE THIS LINE
100
50
DROPOUT VOLTAGE (mV)
200
PULSE DURATION (µs)
15 30 45 60 75 90 105 120 135 150
POWER-SUPPLY REJECTION RATIO vs.
FREQUENCY
MAX5005-07 toc04
OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
3.34
3.33
OUTPUT VOLTAGE (V)
3.32
3.31
3.30
3.29
3.28
3.27
I
OUT
= 150mA
I
OUT
= 0
MAX5005-7 toc05
0
-5
-10
-15
PSRR (dB)
-20
-25
-30
-35
-40
-45
-50
-55
-60
0.01
0.1
C
OUT
= 1µF
1
FREQUENCY (kHz)
3.35
3.26
3.25
10
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
REGION OF STABLE C
OUT
ESR vs. LOAD CURRENT
MAX5005-7 toc06
OUTPUT NOISE
MAX5005-7 toc07
150
125
C
OUT
ESR (Ω)
100
75
50
25
STABLE REGION BELOW THE CURVE
0
0
C
OUT
= 1µF
C
OUT
= 4.7µF
VOUT
1mV/div
15 30 45 60 75 90 105 120 135 150
LOAD CURRENT (mA)
200µs/div
4
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