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LINEAR REGULATOR. APE8973 Datasheet

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LINEAR REGULATOR. APE8973 Datasheet






APE8973 REGULATOR. Datasheet pdf. Equivalent




APE8973 REGULATOR. Datasheet pdf. Equivalent





Part

APE8973

Description

3A ULTRA LOW DROPOUT LINEAR REGULATOR



Feature


Advanced Power Electronics Corp. APE89 73 3A ULTRA LOW DROPOUT LINEAR REGULAT OR FEATURES Ultra Low Dropout - 0.23V( typical) at 3A Output Current Low ESR O utput Capacitor (Multi-layer Chip Capac itors (MLCC) Applicable 0.8V Reference Voltage Fast Transient Response Adjusta ble Output Voltage by External Resistor s Power-On-Reset Monitoring on Both VCN TL and VIN Pins In.
Manufacture

Advanced Power Electronics

Datasheet
Download APE8973 Datasheet


Advanced Power Electronics APE8973

APE8973; ternal Soft-Start Under-Voltage Protecti on Current-Limit and Thermal Shutdown P rotection Power-OK Output with a Delay Time ESOP-8 and DFN 3x3-10L Pb-Free Pac kage. DESCRIPTION The APE8973 is a 3A ultra low dropout linear regulator. Thi s product is specifically designed to p rovide well supply voltage for front-si de-bus termination on motherboards and NB applications. T.


Advanced Power Electronics APE8973

he IC needs two supply voltages, a contr ol voltage for the circuitry and a main supply voltage for power conversion, t o reduce power dissipation and provide extremely low dropout. The APE8973 inte grates many functions. A Power-On-Reset (POR) circuit monitors both supply vol tages to prevent wrong operations. A th ermal shutdown and current limit functi ons protect the de.


Advanced Power Electronics APE8973

vice against thermal and current over-lo ads. A POK indicates the output status with time delay which is set internally . It can control other converter for po wer sequence. The APE8973 can be enable d by other power system. Pulling and ho lding the EN pin below 0.3V shuts off t he output. The APE8973 is available in ESOP-8 and DFN 3x310L packages which fe atures small size .

Part

APE8973

Description

3A ULTRA LOW DROPOUT LINEAR REGULATOR



Feature


Advanced Power Electronics Corp. APE89 73 3A ULTRA LOW DROPOUT LINEAR REGULAT OR FEATURES Ultra Low Dropout - 0.23V( typical) at 3A Output Current Low ESR O utput Capacitor (Multi-layer Chip Capac itors (MLCC) Applicable 0.8V Reference Voltage Fast Transient Response Adjusta ble Output Voltage by External Resistor s Power-On-Reset Monitoring on Both VCN TL and VIN Pins In.
Manufacture

Advanced Power Electronics

Datasheet
Download APE8973 Datasheet




 APE8973
Advanced Power
Electronics Corp.
APE8973
3A ULTRA LOW DROPOUT LINEAR REGULATOR
FEATURES
Ultra Low Dropout - 0.23V(typical) at 3A
Output Current
Low ESR Output Capacitor (Multi-layer
Chip Capacitors (MLCC) Applicable
0.8V Reference Voltage
Fast Transient Response
Adjustable Output Voltage by External Resistors
Power-On-Reset Monitoring on Both
VCNTL and VIN Pins
Internal Soft-Start
Under-Voltage Protection
Current-Limit and Thermal Shutdown Protection
Power-OK Output with a Delay Time
ESOP-8 and DFN 3x3-10L Pb-Free Package.
DESCRIPTION
The APE8973 is a 3A ultra low dropout linear regulator.
This product is specifically designed to provide well supply
voltage for front-side-bus termination on motherboards and
NB applications. The IC needs two supply voltages, a
control voltage for the circuitry and a main supply voltage for
power conversion, to reduce power dissipation and provide
extremely low dropout. The APE8973 integrates many
functions. A Power-On-Reset (POR) circuit monitors both
supply voltages to prevent wrong operations. A thermal
shutdown and current limit functions protect the device
against thermal and current over-loads. A POK indicates the
output status with time delay which is set internally. It can
control other converter for power sequence. The APE8973
can be enabled by other power system. Pulling and holding
the EN pin below 0.3V shuts off the output.
The APE8973 is available in ESOP-8 and DFN 3x3-
10L packages which features small size as an Exposed Pad
to reduce the junction-to-case resistance, being applicable
in 2~3W applications.
TYPICAL APPLICATION
1.Using an Output Capacitor with ESR > 20m
VCNTL=5V
C1
1uF
ON
OFF
R3
1K
U1
VCNTL
VIN
POK
EN
VOUT
VOUT
GND
APE8973
FB
C2 C3
100uF 0.1uF
VIN=1.5V
Vout=1.2V/3A
R1 C6
1K
12~48nF
C4 C5
220uF 0.1u
R2
2K
2.Using an MLCC as the Output Capacitor
ESOP- 8
R3
10K
VCNTL=5V
U2
VCNTL
VIN
ON
C1 OFF
1uF
POK
EN
VOUT
VOUT
GND
FB
APE8973MP
VOUT=VFB*(1+R1/R2)
VFB = 0.8V
VIN=1.5V
C3
10uF
R1
39K
C6
56pF
Vout=1.2V/3A
C5
10uF
R2
78K
Data and specifications subject to change without notice
1
201005311




 APE8973
Advanced Power
Electronics Corp.
TYPICAL APPLICATION
2.Using an MLCC as the Output Capacitor
DFN 3x3-10L
R3
10K
VCNTL=5V
U2
VCNTL
VIN
VIN
ON
C1 OFF
1uF
POK
EN
VOUT
VOUT
GND
FB
APE8973GN3
VOUT=VFB*(1+R1/R2)
VFB = 0.8V
APE8973
VIN=1.5V
C3
10uF
Vout=1.2V/3A
R1
39K
C6
56pF
C5
10uF
R2
78K
ABSOLUTE MAXIMUM RATINGS (at TA=25°C)
VCNTL Supply Voltage(VCNTL) -------------------------- -0.3V to 7V
VIN Supply Voltage(VIN) ---------------------------------- -0.3V to 7V
EN and FB Pin Voltage(VI/O) ---------------------------- -0.3V to VCNTL+0.3V
Power Good Voltage(VPOK) ------------------------------ -0.3V to 7V
Power Dissipation(PD) ------------------------------------- 3W
Storage Temperature Range(TST) --------------------- -65°C to +150°C
Junction Temperature Range(TJ) ---------------------- -40°C To 150°C
Operating Temperature Range (TOP) ------------------ -40°C to +85°C
Thermal Resistance from Junction to Case(RthJC) 15°C/W
Thermal Resistance from Junction to Ambient(RthJA) 40°C/W
RECOMMENDED OPERATING CONDITIONS
VCNTL Supply Voltage(VCNTL) --------------------------
VIN Supply Voltage(VIN) ----------------------------------
Output Voltage(VOUT) --------------------------------------
Output Current(IOUT) ---------------------------------------
3V to 6V
1.2V to 6V
0.8V to VIN-VDROP (VCNTL - VOUT > 1.4V)
0 to 3A
Note: RthJA is measured with the PCB copper area (need connect to Expose-Pad) of approximately 1.5 in2 (Multi-layer)
ORDERING/PACKAGE INFORMATION
APE8973X
Package Type
MP : ESOP-8
GN3 : DFN 3x3-10L
GND 1
FB 2
VOUT 3
VOUT 4
( Top View )
Exposed
Pad
ESOP-8
8 EN
7 POK
6 VCNTL
5 VIN
VIN 1
VIN 2
VCNTL 3
POK 4
EN 5
(GND)
10 NC
9 VOUT
8 VOUT
7 FB
6 GND
DFN 3x3-10L
2




 APE8973
Advanced Power
Electronics Corp.
ELECTRICAL SPECIFICATIONS
(VCNTL = 5V, VIN = 1.5V, VOUT = 1.2V, TA=25°C unless otherwise specified)
Parameter
SYM
TEST CONDITION
VCNTL POR Threshold
VCNTL POR Hysteresis
VIN POR Threshold
VIN POR Hysteresis
VCNTL Nominal Supply Current
VCNTL Shuntdown Current
VCNTL
VCNTL(hys)
VIN
VIN(hys)
ICNTL
ISD
EN= VCNTL
EN= 0V
Feedback Voltage
VFB VCNTL=3.0 ~ 6.0V, IOUT=10mA
APE8973
MIN TYP MAX UNITS
2.5 2.7 2.9
V
- 0.4 -
V
0.8 0.9 1
V
- 0.5 -
V
- 1 1.8 mA
- 50 100 uA
0.784 0.8 0.816 V
Load Regulation
Dropout Voltage
VOUT Pull Low Resistance
Soft Start Time
EN Pin Logic High Threshold
Voltage
EN Hysteresis
EN Pin Pull-Up Current
Current Limit
Ripple Rejection
VIN
VCNTL
Under-Voltage Threshold
POK Threshold Voltage for Power OK
POK Threshold Voltage for Power
Not OK
POK Low Voltage
POK Delay Time
Thermal Shutdown Temp
Thermal Shutdown Hysteresis
VDROP
TSS
VENH
VENL
IEN
ILIM
PSRR
VPOK
VPNOK
TDELAY
TSD
IOUT=0A ~ 3A
IOUT = 3A,
VCNTL=5V
EN=0V
1.2VVOUT2.0V
2.0VVOUT2.8V
2.8VVOUT3.6V
Enable
Disable
EN=GND
VCNTL=3.0~6.0V
TJ= -40 ~ 125°C
F=120Hz, IOUT=100mA
VFB Falling
VFB Rising
-
-
-
-
-
-
1.2
-
-
-
3.3
-
-
-
89%
VFB Falling
78%
POK sinks 5mA
-
0.8
-
-
0.06
0.23
0.26
0.5
85
2
-
-
50
10
-
65
65
0.4
92%
81%
0.25
2
160
50
0.25
0.3
0.33
1
-
4
-
0.4
-
-
-
-
-
-
95%
84%
0.4
4
-
-
%
V
Ω
ms
V
mV
uA
A
dB
V
VFB
VFB
V
ms
°C
PIN DESCRIPTIONS
PIN SYMBOL
GND
FB
EN
VOUT
POK
VCNTL
VCC
EP
PIN DESCRIPTION
GND Pin
Feedback Pin
Internal Pull High.
EN=High or Floating à Enable
EN=Low à Shutdown mode
Output Voltage pin
Power OK Output Pin
CNTL Pin Input Voltage
Input Voltage
Connect to VIN or GND
3






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