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EM5102 PDF даташит

Спецификация EM5102 изготовлена ​​​​«Excelliance MOS» и имеет функцию, называемую «Low Dropout LDO».

Детали детали

Номер произв EM5102
Описание Low Dropout LDO
Производители Excelliance MOS
логотип Excelliance MOS логотип 

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EM5102 Даташит, Описание, Даташиты
2A Low Dropout LDO
EM5102
General Description
Applications
EM5102 is a 2A low dropout linear regulator
designed for low dropout and high current
applications. This device works with dual supplies,
a control input for the control circuitry and a power
input as low as 1.2V for providing current to output.
It features 2A output current and ultra-low-drop
output voltage as well as full protection functions.
VOUT can be as low as 0.8V.
Notebook & Netbook
Graphic Cards & MB
Low Voltage Logic Supplies
Chipset Supplies
Server System
SMPS Post Regulators
Ordering Information
Pin Configuration
Part Number
EM5102GE
Package
PSOP-8
Lead-Free
Remark
Features
VIN Range 1.2V to 5.5V
VOUT is Adjustable (0.8V Min)
Excellent Line Regulation
Excellent Load Regulation
2A Guaranteed Output Current
300mV @ 2A Dropout Voltage
OTP and OCP Functions
Very Low On-Resistance
Enable & Power good Signal
Typical Application Circuit
2011/11/14
Rev.A.5
1









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EM5102 Даташит, Описание, Даташиты
Pin Assignment
EM5102
Pin Name Pin No.
Pin Function
POK
EN
VIN
CNTL
NC
VOUT
FB
GND
1
Power OK Indication. POK is an open-drain output. An external pull high resistor
connected to this pin is required.
2 Enable Input. Pulling the pin below 0.4V turns the regulator off
3
Input Voltage. This is the drain input to the power device that supplies current to
the output pin. VIN cannot be forced higher than VCNTL.
Supply Input for Control Circuit. CNTL provides supply voltage to the control
4
circuitry and driver for the pass transistor. The driving capability of output current
is proportioned to the VCNTL. For the device to regulate, the voltage on this pin must
be at least 2.0V greater than the output voltage, and no less than VCNTL_MIN.
5 No Connection inside chip.
Output Voltage. VOUT is power output pin. An internal pull low resistance exists
6 when the device is disabled. Minimum 10uF low ESR ceramic holding capacitor is
required at this pin for stabilizing VOUT voltage.
Feedback Voltage. FB is the inverting input to the error amplifier. A resistor divider
7
from the output to GND is used to set the regulation voltage as
VOUT = (1 + R1/R2) x 0.8V (V). This pin has high impedance and should be kept from
noisy source to guarantee stable operation.
8 Ground.
Function Block Diagram
EN
ZEN
CNTL
GND
Thermal
Protection
Power On
Reset
Voltage
Reference
Control
Logic
Soft Start
0.8V
0.72V
0.8V +
+
0.72V
VIN
Current
Limit
Delay
VOUT
POK
FB
2011/11/14
Rev.A.5
2









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EM5102 Даташит, Описание, Даташиты
EM5102
Absolute Maximum Ratings (Note1)
VIN ----------------------------------------------------------------------------------- -0.3V to +7V
VCNTL (Note 1) ---------------------------------------------------------------------- -0.3V to +7V
Other Pins ------------------------------------------------------------------------ -0.3V to (VCNTL+0.3V)
Package Thermal Resistance,θJA, PSOP8 (Note 2) ------------------------- 75°C/W
Package Thermal Resistance,θJC, PSOP8 (Note 2) ------------------------- 15°C /W
Power Dissipation, PD @ TA = 25°C, PSOP8 (Note 3) ---------------------- 1.9W
Junction Temperature --------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) ------------------------------------ 260°C
Storage Temperature ---------------------------------------------------------- -65°C to +150°C
ESD susceptibility (Note4)
HBM (Human Body Mode) --------------------------------------------------- 2KV
MM (Machine Mode) ---------------------------------------------------------- 200V
Recommended Operating Conditions (Note5)
Supply Input Voltage, VIN --------------------------------------------------- 1.0V to VCNTL
Control Voltage, VCNTL ------------------------------------------------------- 3.0V to 5.5V
Junction Temperature ------------------------------------------------------ -40°C to 125°C
Ambient Temperature ------------------------------------------------------ -40°C to 85°C
Electrical Characteristics
VCNTL=5V, TA=25°C, unless otherwise specified
Parameter
Symbol
Test Conditions
Min Typ Max Units
Supply Input Section
Control Input Voltage
POR Threshold
POR Hysteresis
Power Input Voltage
Control Input Current in
Shutdown
Quiescent Current
Feedback
Reference Voltage
Feedback Input Current
VIN Line Regulation
Load Regulation (Note 6)
Load Regulation over
Temperature
On Resistance
VCNTL
VCNTLRTH
VCNTLHYS
VIN
ICNTL_SD
IQ
VOUT= VREF
VOUT=VREF
VIN=VCNTL=5V, IOUT=0A,VEN=0V
VIN=VCNTL=VEN=5V, IOUT=0A,
VOUT=VREF
VREF
IFB
VREF(LINE)
VREF(LOAD)
VREF(TOTAL)
RDS(ON)
VIN=VCNTL=VEN=5V, IOUT=0A,
VOUT=VREF
1.2V<VIN<5V, VCNTL=VEN=5V,
IOUT=0A, VOUT=VREF
0<IOUT<2A, VIN=VCNTL=VEN=5V,
VOUT=VREF
0<IOUT<2A, VIN=VCNTL=VEN=5V,
VOUT=VREF, -40oC<Tj<125 oC by
design
IOUT=100mA, VCNTL=VEN=5V,
VOUT=1.6V
2.9 -
6
2.5 2.7 2.9
0.1 0.2
-
1.0 - VCNTL
- 10 30
- 0.3 0.6
0.788 0.8 0.812
- 20 -
- 0.01 0.1
- 0.1 0.5
- 0.5 3
- 150 250
V
V
V
V
uA
mA
V
nA
%/V
%/A
%
2011/11/14
Rev.A.5
3










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