APE8902MP-18 - Advanced Power Electronics Corp. USA

Advanced Power

Electronics Corp.

2A LOW DROPOUT REGULATOR WITH ENABLE

FEATURES DESCRIPTION

Adjustable Output Low to 0.8V

Input Voltage as Low as 1.4V and VPP Voltage 5V

350mV Dropout @ 2A, VO 1.2V

Over Current and Over Temperature Protection

Enable Pin

Low Reverse Leakage (Output to Input )

±2% Output Voltage

VO Power OK Signal

1.2V, 1.5V, 1.8V and 2.5V and Adjustable

Output Voltage

VO Pull Low Resistance when Disable

SOP-8 with Exposed Pad

APPLICATION

Motherboards

Peripheral Cards

Network Cards

Set Top Boxes

Notebook Computers

ORDERING INFORMATION

PACKAGE INFORMATION TYPICAL APPLICATION CIRCUIT

Data and specifications subject to change without notice

200810214

APE8902

ORDER NUMBER

APE8902MP

APE8902MP-12

APE8902MP-15

APE8902MP-18

APE8902MP-25

MARKING

8902MP

8902MP-12

8902MP-15

8902MP-18

8902MP-25 - 40°C ~ + 85°C

- 40°C ~ + 85°C

PACKAGE

ESOP-8

(with exposed pad)

TEMP. RANGE

- 40°C ~ + 85°C

APE8902 is a high performance positive voltage

regulator designed for use in applications requiring very low

Input voltage and very low dropout voltage at up to 2 amps.

It operates with a VIN as low as 1.4V and VPP voltage 5V

with output voltage programmable as low as 0.8V. APE8902

features ultra low dropout, ideal for applications where

VOUT is very close to VIN. Additionally, the APE8902 has

an enable pin to further reduce power dissipation while

shutdown. APE8902 provides excellent regulation over

variations in line, load and temperature. APE8902 provides

a power OK signal to indicate if the voltage level of VO

reaches 92% of its rating value.

APE8902 is available in the exposed SOP-8(MP)

package. It is available with 1.2V, 1.5V, 1.8V and 2.5V

internally preset outputs that are also adjustable using

external resistors.

VPP

VEN

VIN

ADJ

POK

GND

VOUT

10KΩ

CPP

1uF

10uF

VO = [ 0.8 x (R1+R2) ] / R2 Volts

R2 < 120 K Ω is recommended

VPP (5V)

VIN

VEN

VPP

POK

VIN

GND

ADJ/NC

ESOP-8 (MP)

(Top View)

Advanced Power

Electronics Corp. APE8902

ABSOLUTE MAXIMUM RATINGS (Note1)

VPP, VIN, Input Voltage ------------------------------------ 6.5V

Power Dissipation -----------------------------------------

Internally Limited (Note2)

Maximum Junction Temperature ----------------------

150°C

Storage Temperature Range ---------------------------

-65°C To 150°C

Rthja, Thermal Resistance Junction to Ambient ---

40°C/W

Rthjc, Thermal Resistance Junction to Case -------- 15°C/W

ESD Rating (Human Body Model) --------------------

2KV

RECOMMENDED OPERATING CONDITIONS

VIN Voltage --------------------------------------------------

1.4V to 5.5V

VPP Voltage -------------------------------------------------- 4.5V to 5.5V

VOUT, Output Voltage -------------------------------------

0.8V to 2.7V

TA, Temperature Range ---------------------------------- -40°C To 85°C

ELECTRICAL SPECIFICATIONS

VPP=5V, VIN=VOUT+500mV, VEN=VPP, IO=10mA, CIN=10uF, TA=TJ=25°C, unless otherwise specefied. (Note3)

Parameter SYM TEST CONDITION MIN TYP MAX UNITS

Input Voltage Range VIN 1.4 - 5.5 V

Quiescent Current IQIO=0mA - 100 300 uA

VPP Voltage Range VPP 4.5 - 5.5 V

IO=0mA - 0.23 0.5 mA

IO=2A - 5 6 mA

IPPL VEN=0V - - 10 uA

Output Voltage (Internal Fixed Voltage) VOVIN=VO+0.5V, VO=1.8V 1.764 1.8 1.836 V

Line Regulation VIN=(VO+0.5V) to 5V - 0.2 1 %

Load Regulation 10mA ≦ IO ≦2A - 1 1.5 %

Dropout Voltage VDIO=2A - 300 350 mV

Short Circuit Current - 3 - A

VO Pull Low Resistance VEN=0V -90- Ω

Reference Voltage VREF VADJ=VO0.784 0.8 0.816 V

Adjust Pin Current IADJ - 20 100 nA

VEN Pin Voltage High VENH 1.6 - - V

VEN Pin Voltage Low VENL - - 0.4 V

VEN Pin Bias Current IENH

-1220uA

VO Power OK Voltage VTHPOK -92- %

Hysteresis VHYPOK -7-%

VEN

POK

VIN

VPP

VPP Current IPPH

ADJ

Advanced Power

Electronics Corp. APE8902

ELECTRICAL SPECIFICATIONS(Cont.)

Parameter SYM TEST CONDITION MIN TYP MAX UNITS

Over Temperature TOT - 150 - °C

Over Temperature Hysteresis TOTHY -30- °C

Note1. Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are

conditions under which the device functions but the specifications might not be guaranteed. For guaranteed

specifications and test conditions see the Electrical Characteristics.

Note2. The maximum power dissipation is a function of the maximum junction temperature, Tjmax; total resistance,

Rthja, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is

(Tjmax -TA) / Rthja. If this dissipation is exceeded, the die temperature will rise above 150°C and IC will go into

thermal shutdown.

Note3. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.

Note4. Rthja is measured by mounted on a high effective thermal conductivity test board in free air.

The bottom exposed pad of ESOP-8 is soldered directly on the PCB.

PIN DESCRIPTIONS

PIN SYMBOL PIN DESCRIPTION

POK Assert high once VO reaches 92% of its rating voltage. Open-drain output.

Enable Input. Pulling this pin below 0.4V turns the regulator off, reducing the

quiescent current to a fraction of its operating value. The device will be enabled

if this pin is left open.

Input voltage. Large bulk capacitance should be placed closely to this pin.

A 10uF ceramic capacitor is recommended at this pin.

VPP Input voltage for controlling circuit.

NC Not connected

The power output of the device. A pull low resistance exists when deactivate

device by VEN.

This pin, when sets the output voltage bye the internal feedback resistors, is

NC pin. If external feedback resistors are used, the output voltage will be

VO = 0.8( R1+R2 ) / R2 Volts.

GND Reference ground.

VEN

ADJ/NC

OVER TEMPERATURE PROTECTION

VIN

Advanced Power

Electronics Corp. APE8902

BLOCK DIAGRAM

DEFINITIONS

Dropout Voltage

Line Regulation

Load Regulation

Maximum Power Dissipation

Quiescent Bias Current

The input/output Voltage differential at which the regulator output no longer maintains

regulation against further reductions in input voltage. Measured when the output drops 2% below

its nominal value, dropout voltage is affected by junction temperature, load current and minimum

input supply requirements.

The change in output voltage for a change in input voltage. The measurement is made under

conditions of low dissipation or by using pulse techniques such that average chip temperature is

not significantly affected.

The change in output voltage for a change in load current at constant chip temperature. The

measurement is made under conditions of low dissipation or by using pulse techniques such that

average chip temperature is not significantly affected.

The maximum total device dissipation for which the regulator will operate within

ecifications.

Current which is used to operate the regulator chip and is not delivered to the load.

Vpp

Vin

OUT

Vin

Vpp

Advanced Power

Electronics Corp.

APE8902

POWER SEQUENCE DIAGRAM

POWER ON SEQUENCE

POWER OFF SEQUENCE

APE8902

TYPICAL PERFORMANCES CHARACTERISTICS

(VCC= 3.3V, TA=25°C, unless otherwise noted.)

Advanced Power

Electronics Corp.

Quiescent Current vs. Temperature

0.08

0.082

0.084

0.086

0.088

0.09

0.092

0.094

0.096

0.098

0.1

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100

Temperature, (℃)

Input Vol tage, VI N

Quiescent Current vs. Input Voltage

0.08

0.082

0.084

0.086

0.088

0.09

0.092

0.094

0.096

0.098

0.1

3 3.5 4 4.5 5 5.5

Input Voltage, VIN (V)

Quiescent Current, I Q （mA）

IPPH Current vs. Temperature

100

125

150

-40-30-20-100102030405060708090100

Temperature ( °C)

IPPH Current (mA)

Output Voltage vs. Input Voltage

1.2

1.205

1.21

1.215

1.22

3 3.5 4 4.5 5 5.5

Input Voltage (V)

Output Voltage

Output Voltage vs. Load Current

1.205

1.21

1.215

1.22

Output Volrtage (V)

1.2

0 0.25 0.5 0.75 1 1.25 1.5 1.75 2

Load Current (A)

IPPH Current vs. Input Voltage

100

110

120

3 3.5 4 4.5 5 5.5

Input Voltage (V)

IPPH Current (mA)

APE8902

TYPICAL PERFORMANCES CHARACTERISTICS (continued)

Advanced Power

Electronics Corp.

Output Voltage vs. Temperature

1.18

1.19

1.2

1.21

1.22

1.23

1.24

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100

Temperature ( °C)

Output Vol t age (V)

Reference Voltage vs. Temperature

0.78

0.785

0.79

0.795

0.8

0.805

0.81

0.815

0.82

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100

Temperature ( °C)

Reference Voltage (V)

Reference Voltage vs. Input Voltage

0.788

0.792

0.796

0.8

0.804

0.808

0.812

3 3.5 4 4.5 5 5.5

Input Voltage (V)

Reference Voltage (V)

APE8902

TYPICAL PERFORMANCES CHARACTERISTICS (continued)

Advanced Power

Electronics Corp.

Load Transient Short Circuit Current

Vin Start up Waveform

VEN Start up Waveform

APE8902

DEMO BOARD FOOTPRINT

Advanced Power

Electronics Corp.

Package Outline : ESOP-8

Millimeters

SYMBOLS MIN NOM MAX

A 5.80 6.00 6.20

B 4.80 4.90 5.00

C 3.80 3.90 4.00

D 0°4°8°

E 0.40 0.65 0.90

F 0.19 0.22 0.25

M 0.00 0.08 0.15

0.35 0.42 0.49

L 1.35 1.55 1.75

P 2.15 2.25 2.35

Q 2.15 2.25 2.35

1.All Dimension Are In Millimeters.

2.Dimension Does Not Include Mold Protrusions.

Part Marking Information & Packing : ESOP-8

ADVANCED POWER ELECTRONICS CORP.

0.375 REF.

45°

1.27 TYP.

8902MP-&&

YWWSSS

Package Code

Part Number

Date Code (YWWSSS)

Y：Last Digit Of The Year

WW：Week

SSS：Sequence

Output Voltage