MAX8532EBTJ-T Fast Delivery |IC PHOENIX CO.,LIMITED

MAX8532EBTJ-T ,Low-Noise, Low-Dropout, 200mA Linear Regulator in UCSPApplicationsOUT PIN-PART TEMP RANGECellular and Cordless Phones VOLTAGE PACKAGEPDAs and Palmtop Com ..
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MAX8532EBTJ-T
Low-Noise, Low-Dropout, 200mA Linear Regulator in UCSP
General Description
The MAX8532 offers the benefits of low-dropout voltage
and ultra-low power regulation in a subminiaturized
UCSP, making it ideal for space-restricted portable
equipment. The device operates from a 2.5V to 6.5V
input and delivers up to 200mA, with low dropout of
100mV (typ) at 100mA. Designed with an internal
P-channel MOSFET pass transistor, the supply current
is kept at a low 80µA, independent of the load current
and dropout voltage. Other features include short-circuit
protection and thermal-shutdown protection.
The MAX8532 includes a reference bypass pin for low
outputnoise (40µVRMS) anda logic-controlled shutdown
input. The device is available in a tiny 6-pin UCSP.
Applications
Cellular and Cordless Phones
PDAs and Palmtop Computers
Notebook Computers
Digital Cameras
PCMCIA Cards
Wireless LAN Cards
Hand-Held Instruments
FeaturesGuaranteed 200mA Output CurrentLow 100mV (typ) Dropout at 100mALow 40µVRMSOutput NoiseLow 80µA Operating Supply Current62dB PSRR< 1µA Shutdown CurrentThermal-Overload and Short-Circuit ProtectionOutput Current LimitTiny 1.16mm x 1.57mm x 0.66mm UCSP
(3 x 2 Grid)
MAX8532
Low-Noise, Low-Dropout,
200mA Linear Regulator in UCSP
MAX8532EBT
UCSPA3A1
SHDNGNDBPOUTN.C.B2B3
TOP VIEW
Bump Configuration
Ordering Information
19-2733; Rev 1; 2/12
*“_” = Output voltage code (see the Output Voltage Selector
Guide).
Note:Devices are also available in a lead(Pb)-free/RoHS-com-
pliant package. Specify lead-free by adding “+” to the part num-
ber when ordering.
EVALUATION KIT
AVAILABLE
PARTTEMP RANGEOUT
VOLTAGE
PIN-
PACKAGE
MAX8532EBT_*-40°C to +85°C1.5V to 3.3V6 UCSP
Output Voltage Selector Guide
PARTVOUT (V)TOP MARK
MAX8532EBTJ2.85ACP
MAX8532EBTG3ACU
MAX8532EBT21.8ACV
Note:Contact the factory for other output voltages between
1.5V and 3.3V. The minimum order quantity is 25,000 units.OUT
2.2µFCIN
2.2µF
INPUT
2.5V TO 6.5V
OUTPUT
1.5V TO 3.3V
AT 200mA
10nF
SHDN
OFFBP
GND
MAX8532
Typical Operating Circuit
MAX8532
Low-Noise, Low-Dropout,
200mA Linear Regulator in UCSP
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(IN = 3.8V, SHDN= IN, CBP = 10nF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
IN, SHDN, BP to GND..............................................-0.3V to +7V
OUT to GND................................................-0.3V to (VIN+ 0.3V)
Output Short-Circuit Duration........................................Indefinite
Continuous Power Dissipation (TA = +70°C)
6-Pin UCSP (derate 3.9mW/°C above +70°C)..............308mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
6-Pin UCSP Solder Profile............................................(Note 1)
Soldering Temperature (reflow)
Lead(Pb)-Free Packages..............................................+260°C
Packages Containing Lead(Pb)....................................+240°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Input VoltageVIN2.56.5V
Undervoltage Lockout ThresholdVUVLOIN rising, hysteresis is 40mV (typ)2.152.252.42V
TA = +25°C, IOUT = 1mA-1+1
TA = -40°C to +85°C, IOUT = 1mA-2+2Output Voltage Accuracy
TA = - 40°C to + 85° C , IOU T = 0.1m A to 200m A-3+3
Maximum Output CurrentIOUT200mA
Current LimitILIM210330550mA
No load80150Ground CurrentIQIOUT = 100mA100µA
Dropout VoltageVOUT - VINIOUT = 100mA (Note 3)100200mV
Line Regulation∆VLNRIN = (VOUT + 0.1V) to 3.8V-0.2+0.2%/V
Output Voltage Noise10Hz to 100kHz, COUT = 10µF, IOUT = 10mA40µVRMS
Ripple RejectionPSRR100Hz, IOUT = 30mA62dB
SHUTDOWN
SHDN = 0, TA = +25°C0.011SHDN Supply CurrentIOFFSHDN = 0, TA = +85°C0.1µA
VIHInput high voltage1.6SHDN Input ThresholdVILInput low voltage0.4V
TA = +25°C0.7100SHDN Input Bias CurrentISHDNSHDN = IN or GNDTA = +85°C0.8nA
THERMAL PROTECTION
Thermal-Shutdown TemperatureTSHDNTJ rising160°C
Thermal-Shutdown Hysteresis∆TSHDN10°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.
Note 1:For UCSP solder profile information, visit /1st_pages/UCSP.html.
Note 2:All units are 100% production tested at TA= +25°C. Limits over the operating temperature range are guaranteed by design.
Note 3:The dropout voltage is defined as VIN- VOUT, when VOUTis 100mV below the value of VOUTfor VIN= VOUT+ 0.5V.
Specification applies only when VOUT> = 2.5V.
MAX8532
Low-Noise, Low-Dropout,
200mA Linear Regulator in UCSP
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX8532 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (54321
NO LOAD
80mA LOAD
SUPPLY CURRENT
vs. LOAD CURRENT
MAX8532 toc02
LOAD CURRENT (mA)
SUPPLY CURRENT (604050203010
SUPPLY CURRENT
vs. TEMPERATURE
MAX8532 toc03
TEMPERATURE (°C)
SUPPLY CURRENT (3510-15
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX8532 toc04
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
LDO DROPOUT VOLTAGE
vs. VOUT
MAX8532 toc05
VOUT (V)
DROPOUT VOLTAGE (mV)
IOUT = 80mA
OUTPUT VOLTAGE ACCURACY
vs. TEMPERATURE
MAX8532 toc06
TEMPERATURE (°C)
OUTPUT VOLTAGE (%)3510-15
PSRR vs. FREQUENCY
MAX8532 toc07
FREQUENCY (kHz)
PSRR (dB)
100Ω LOAD
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY
MAX8532 toc08
FREQUENCY (kHz)
NOISE DENSITY (nV
RMS
Hz)10.1
OUTPUT NOISE (10Hz TO 100kHz)
MAX8532 toc09
1ms/div
VOUT500µV/div
Typical Operating Characteristics
(VOUT= 2.85V, load = 80mA, VIN= 3.8V, COUT= 2.2µF, CBP= 0.01µF, and CIN= 2.2µF.TA= +25°C, unless otherwise noted.)
MAX8532
Low-Noise, Low-Dropout,
200mA Linear Regulator in UCSP
LINE TRANSIENT
MAX8532 toc10
VOUT
4.5V
40µs/div
VIN
3.5V
1V/div
20mV/div
AC-COUPLED
LOAD TRANSIENT
VIN = 3.35V, ILOAD = 1mA TO 80mA
MAX8532 toc11
ILOAD
50mA/div
10µs/div
VOUT
20mV/div
AC-COUPLED
LOAD TRANSIENT
NEAR DROPOUT
MAX8532 toc12
ILOAD
50mA/div
10µs/div
VOUT
20mV/div
AC-COUPLED
VIN = VOUT + 0.1V
SHUTDOWN RESPONSE
MAX8532 toc13
VSHDN
1V/div
1ms/div
VOUT
2V/div
Typical Operating Characteristics (continued)
(VOUT= 2.85V, load = 80mA, VIN= 3.8V, COUT= 2.2µF, CBP= 0.01µF, and CIN= 2.2µF.TA= +25°C, unless otherwise noted.)
Bump Description
PINNAMEFUNCTIONN.C.Not ConnectedINRegulator InputOUTRegulator Output. Guaranteed 200mA output current.GNDGroundSHDNShutdown Input. A logic low shuts down the regulator. Connect to IN for normal operation.BPReference Noise Bypass. Bypass with a 0.01µF ceramic capacitor for reduced noise.
MAX8532
Low-Noise, Low-Dropout,
200mA Linear Regulator in UCSP
Detailed Description
The MAX8532 is a low-power, low-dropout, low-quies-
cent current linear regulator designed primarily for bat-
tery-powered applications. For preset output voltages,
see the Output Voltage Selector Guide. The device
supplies up to 200mA for OUT. The MAX8532 consists
of a 1.25V reference, error amplifier, P-channel pass
transistor, reference bypass block, and internal feed-
back voltage divider.
The 1.25V bandgap reference is connected to the error
amplifier’s inverting input. The error amplifier compares
this reference with the feedback voltage and amplifies
the difference. If the feedback voltage is lower than the
reference voltage, the pass-transistor gate is pulled
lower, allowing more current to pass to the output and
increasing the output voltage. If the feedback voltage is
high, the pass-transistor gate is pulled up, allowing less
current to pass to the output. The output voltage is fed
back through an internal resistor voltage-divider con-
nected to the OUT pin.
Shutdown
The MAX8532 has a single shutdown control input
(SHDN). Drive SHDNlow to shut down the output,
reducing supply current to 10nA. Connect SHDNto a
logic-high, or IN, for normal operation.
Internal P-Channel Pass Transistor
The MAX8532 features a 1ΩP-channel MOSFET pass
transistor. A P-channel MOSFET provides several advan-
tages over similar designs using PNP pass transistors,
including longer battery life. It requires no base drive,
reducing quiescent current. PNP-based regulators waste
considerable current in dropout when the pass transistor
saturates and also use high base-drive currents under
heavy loads. The MAX8532 does not suffer these prob-
lems and consumes only 90µA quiecent current whether
in dropout, light-load, or heavy-load applications (see the
Typical Operating Characteristics). Whereas a PNP-
based regulator has dropout voltage independent of the
load, a P-channel MOSFET’s dropout voltage is propor-
tional to load current, providing for low dropout voltage
at heavy loads and extremely low dropout voltage at
ERROR
AMP
SHDN
GND
OUT
MOS
DRIVER
WITH ILIMIT
THERMAL
SENSOR
1.25V
REF
SHUTDOWN
AND
POWER-ON
CONTROL
MAX8532
Functional Diagram
MAX8532
Low-Noise, Low-Dropout,
200mA Linear Regulator in UCSP
Current Limit
The MAX8532 contains an independent current limiter,
which monitors and controls the pass transistor’s gate
voltage, limiting the output current to 210mA (min). The
output can be shorted to ground indefinitely without
damaging the part.
Thermal-Overload Protection
Thermal-overload protection limits total power dissipa-
tion in the MAX8532. When the junction temperature
exceeds TJ= +160°C, the thermal sensor signals the
shutdown logic, turning off the pass transistor and allow-
ing the IC to cool. The thermal sensor turns the pass
transistor on again after the IC’s junction temperature
cools by 10°C, resulting in a pulsed output during contin-
uous thermal-overload conditions.
Thermal-overload protection is designed to protect the
MAX8532 in the event of fault conditions. For continual
operation, do not exceed the absolute maximum junc-
tion temperature rating of TJ= +150°C.
Operating Region and Power Dissipation
The MAX8532’s maximum power dissipation depends
on the thermal resistance of the case and circuit board,
the temperature difference between the die junction
and ambient air, and the airflow rate. The power dissi-
pation across the device is P = IOUT(VIN- VOUT).
Maximum power dissipation:
PMAX= (TJ- TA)/(θJB+ θBA)
where TJ- TAis the temperature difference between the
MAX8532 die junction and the surrounding air, θJB(or
θJC) is the thermal resistance of the package, and θBAis
the thermal resistance through the printed circuit board,
copper traces, and other materials, to the surrounding air.
Low-Noise Operation
An external 0.01µF bypass capacitor at BP, in conjunc-
tion with an internal resistor, creates a lowpass filter.
The MAX8532 exhibits 40µVRMSoutput voltage noise
with CBP= 0.01µF and COUT= 2.2µF (see the Output
Noise Spectral Density vs. Frequency graph in the
Typical Operating Characteristics).
Applications Information
Capacitor Selection
and Regulator Stability
Use a 2.2µF capacitor on the MAX8532’s input. Larger
input capacitor values with lower ESR provide better
supply-noise rejection and line-transient response. To
reduce noise and improve load transients, use large
outputcapacitors up to 10µF. For stable operation over
the full temperature range and with rated maximum
load currents, use a minimum of 2.2µF (or 1µF for
<150mA loading) for OUT.
Note that some ceramic dielectrics exhibit large capac-
itance and ESR variation with temperature. With
dielectrics such as Z5U and Y5V, use 4.7µF or more to
ensure stability at temperatures below -10°C. With X7R
or X5R dielectrics, 2.2µF is sufficient at all operating
temperatures. These regulators are optimized for
ceramic capacitors. Tantalum capacitors are not rec-
ommended.
PSRR and Operation from
Sources Other than Batteries
The MAX8532 is designed to deliver low dropout volt-
ages and low quiescent currents in battery-powered sys-
tems. Power-supply rejection is 62dB at low frequencies
(see the Power-Supply Rejection Ratio vs. Frequency
graph in the Typical Operating Characteristics).
When operating from sources other than batteries,
improve supply-noise rejection and transient response
by increasing the values of the input and output bypass
capacitors and through passive filtering techniques.

Partno	Mfg	Dc	Qty	Available	Descript
MAX8532EBTJ-T \|MAX8532EBTJT	MAX	N/a	2500	avai	Low-Noise, Low-Dropout, 200mA Linear Regulator in UCSP