Anpec APW8822AQBI, APW8822BQBI, APW8822CQBI, APW8822QBI Schematics

APW8822/A/B/C

System Power PWM Controller for Notebook Computers with Charge Pump

Features

• Wide Input voltage Range from 6V to 25V

• Provide 5 Independent Outputs with ±1.0% Accu-

racy Over-Temperature

- PWM1 Controller with Adjustable (2V to 5.5V) Out­put

- PWM2 Controller with Adjustable (2V to 5.5V) Out­put

- 100mA Low Dropout Regulator (LDO5) with Fixed
5V Output

Simplified Application Circuit

C2

ENILIM2

LDO3

PWM2

C3

V

Q3

V

OUT2

L2

Q4

D4D3D2

V

C4

V

IN

6V~25V

V

LDO5

V

OUT1

L1

Q1

Q2

ENILIM1

LDO5

PWM1

Charge Pump

C1

D1

EN LDO

LDO3

CP

- 100mA Low Dropout Regulator (LDO3) with Fixed

3.3V Output

- 270kHz Clock Signal for 15V Charge Pump (Used
VOUT1 as Its Power Supply)

• Excellent Line/Load Regulations about ±1.5% Over-

Temperature Range

• Built in POR Control Scheme Implemented

• Constant On-Time Control Scheme with Frequency

Compensation for PWM Mode

• Selectable Switching Frequency in PWM Mode

• Built-in Digital Soft-Start for PWM Outputs and Soft-

Stop for PWM Outputs and LDO Outputs

• Integrated Bootstrap Forward P-CH MOSFET

• High Efficiency over Light to Full Load Range

(PWMs)

• Built-in Power Good Indicators (PWMs)

• Independent Enable Inputs (PWMs, LDO)

• 70% Under-Voltage and 125% Over-Voltage Protec-

tions (PWM)

• Adjustable Current-Limit Protection (PWMs)

- Using Sense Low-Side MOSFET’s R

DS(ON)

• Over-Temperature Protection

• 3mmx3mm Thin QFN-20 (TQFN3x3-20) package

• Lead Free and Green Device Available (RoHS

Compliant)

General Description

The APW8822/A/B/C integrates dual step-down, constant­on-time, synchronous PWM controllers (that drives dual
N-channel MOSFETs for each channel) and two low drop­out regulators as well as various protections into a chip.
The PWM controllers step down high voltage of a battery
to generate low-voltage for NB applications. The output
of PWM1 and PWM2 can be adjusted from 2V to 5.5V by
setting a resistive voltage-divider from VOUTx to GND.
The linear regulators provide 5V and 3.3V output for
standby power supply. The linear regulators provide up
to 100mA output current. When the PWMx output voltage
is higher than LDOx bypass threshold, the related LDOx
regulator is shut off and its output is connected to VOUTx
by internal switchover MOSFET. It can save power
dissipation. The charge pump circuit with 270kHz clock
driver uses VOUT1 as its power supply to generate ap­proximately 15V DC voltage.
The APW8822/A/B/C provides excellent transient
response and accurate DC output voltage in either PFM
or PWM Mode. In Pulse-Frequency Mode (PFM), the
APW8822/A/B/C provides very high efficiency over light
to heavy loads with loading-modulated switching
frequencies. The Forced-PWM Mode works nearly at
constant frequency for low-noise requirements. The
unique ultrasonic mode maintains the switching
frequency above 25kHz, which eliminates noise in
audio application.

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Nov., 2012

www.anpec.com.tw1

APW8822/A/B/C

General Description (Cont.)

The APW8822/A/B/C is equipped with accurate sourc­ing and current-limit, output under-voltage output over­voltage protections, being perfect for NB applications. A

1.4ms (typ.) digital soft-start can reduce the start-up
current. A soft-stop function actively discharges the
output capacitors by the discharge device. The
APW8822/A/B has individual enable controls for each
PWM channels. Pulling both EN1/2 pin low shuts down
the all of outputs unless LDO3 output. The LDO3 and
LDO5 of APW8822A/C are always on standby power.
The APW8822/A/B/C is available in a TQFN3x3-20
package.

Ordering and Marking Information

APW8822
APW8822A
APW8822B
APW8822C

Assembly Material
Handling Code
Temperature Range
Package Code

Applications

• Notebook and Sub-Notebook Computers

• Portable Devices

• DDR1, DDR2, and DDR3 Power Supplies

• 3-Cell and 4-Cell Li+ Battery-Powered Devices

• Graphic Cards

• Game Consoles

• Telecommunications

Package Code
QB: TQFN 3 x3-20
Operating Ambient Temperature Range
I : -40 to 85 C
Handling Code
TR : Tape & Reel
Lead Free Code
L : Lead Free Device

°

G : Halogen and Lead Free Device

APW

APW8822 QB :

APW8822A QB :

APW8822B QB :

APW8822C QB :

DEVICE NUMBER ENABLE FUNCTION SKIP MODE ALWAYS ON-LDO

APW8822QBI EN1/EN2 Auto-skip LDO3
APW8822AQBI ENLDO/ENILIM1/ENILIM2 Auto-skip LDO3 & LDO5
APW8822BQBI EN1/EN2 Ultra-sonic LDO3
APW8822CQBI EN1/EN2 Auto-skip LDO3 & LDO5

Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).

8822

XXXXX

APW
8822A

XXXXX

APW
8822B

XXXXX

APW
8822C

XXXXX

XXXXX - Date Code

XXXXX - Date Code

XXXXX - Date Code

XXXXX - Date Code

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Nov., 2012

www.anpec.com.tw2

APW8822/A/B/C

Pin Configuration

ENLDO

VCLK

PHASE1

BOOT1

UGATE1

17181920 16

LGATE1

1

2

3

Bottom View

APW8822A

15

14

13

BYP

LDO5

ILIM1

FB1

LDO3

EN1

VCLK

PHASE1

BOOT1

UGATE1

17181920 16

1

2

15

14

LGATE1

BYP

APW8822

3

Bottom View

APW8822B

13

LDO5

ENILIM1

FB1

LDO3

APW8822C

FB2

ILIM2

FB2

2

4

5

9876 10

NC

POK

BOOT2

PHASE2

TQFN 3X3-20

Top View

4

5

12

11

VIN

LGATE2

ENILIM

9876 10

EN2

POK

BOOT2

PHASE2

UGATE2

TQFN 3X3-20

Top View

12

VIN

LGATE2

11

UGATE2

= GND and Thermal Pad (connected to GND plane for better hat dissipation)

Absolute Maximum Ratings (Note 1)

Symbol Parameter Rating Unit

VIN Input Power Voltage (VIN to GND) -0.3 ~ 28 V

V

BOOT Supply Voltage (BOOT to PHASE) -0.3 ~ 7 V

BOOT

V

BOOT-GND

<20ns pulse width
>20ns pulse width

UGATE Voltage (UGATE to PHASE)

BOOT Supply Voltage (BOOT to GND)

V

UG-PHASE

<20ns pulse width
>20ns pulse width

LGATE Voltage (LGATE to GND)

V

LG-GND

<20ns pulse width
>20ns pulse width

PHASE Voltage (PHASE to GND)

V

PHASE

<20ns pulse width
>20ns pulse width

All Other Pins (LDOx, FBx, VOUTx, LDO5, LDO3, REF, VCLK, EN
LDO, ENILIMx to GND)

TJ Maximum Junction Temperature 150

T

Storage Temperature -65 ~ 150

STG

T

Maximum Lead Soldering Temperature, 10 Seconds 260

SDR

Note1: 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 under "recom­mended operating conditions" is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability.

-5 ~ 42

-0.3 ~ 35

-5 ~ V

-0.3 ~ V

-5 ~ V

-0.3 ~ V

BOOT

BOOT

LDO5

LDO5

+0.3

+0.3

+0.3

+0.3

-5 ~ 35

-0.3 ~ 28

-0.3 ~ 6 V

V

V

V

V

o

C

o

C

o

C

Copyright  ANPEC Electronics Corp.

www.anpec.com.tw3

Rev. A.2 - Nov., 2012

APW8822/A/B/C

Thermal Characteristics (Note 2)

Symbol Parameter Typical Value Unit

θJA
θJC

Note 2: θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. The thermal pad
of package is soldered directly on the PCB.

Recommended Operating Conditions

Thermal Resistance - Junction to Ambient 95
Thermal Resistance - Junction to Case 60

o

C/W

Symbol

Parameter Range Unit

VIN PWM1/2 Converter Input Voltage 6 ~ 25 V
V
V

PWM1 Converter Output Voltage 2 ~ 5.5 V

OUT1

PWM2 Converter Output Voltage 2 ~ 5.5 V

OUT2

CIN PWM1/2 Converter Input Capacitor (MLCC) 10 ~

C

LDO Output Capacitor (MLCC) 1.0 ~

LDO

TA Ambient Temperature -40 ~ 85

TJ Junction Temperature -40 ~ 125

µF
µF

o

C

o

C

Electrical Characteristics

Refer to the typical application circuits. These specifications apply over VIN=12V and TA= -40 ~ 85 °C, unless otherwise
specified. Typical values are at TA=25°C.

Symbol

INPUT SUPPLY POWER

VIN Supply Current

IVN

Parameter Test Conditions

Supply current1, VOUT1=0V,
EN1=EN2=5V, VFB1 = VFB2 = 2.05V

Supply current2, VOUT1=5V,
EN1=EN2=5V, V
P

VIN+PLDO5

FB1

= V

FB2

Standby current1, VOUT1=0V,
EN1=EN2=0V (For APW8822/B)

= 2.05V,

APW8822

Min. Typ. Max.

- 0.86 1.2 mA

- 5 7 mW

- - 80

Unit

Standby current2, VOUT1=0V,
EN1=EN2=0V (For APW8822A/C)

Shutdown current, ENLDO=0V,
ENILIMx=0V (For APW8822A)

- 180 245

- 20 40

µA

UNDER-VOLTAGE LOCK OUT PROTECTION (UVLO)

LDO5 UVLO threshold

LDO3 UVLO threshold

Rising Edge 4.1 4.2 4.3 V
Hysteresis - 0.1 - V
Rising Edge 3.0 3.15 3.3 V
Hysteresis - 0.8 - V

Copyright  ANPEC Electronics Corp.

www.anpec.com.tw4

Rev. A.2 - Nov., 2012

APW8822/A/B/C

Falling threshold2, PWMx shutdown

Falling threshold1, LDOx shutdown

Electrical Characteristics

Refer to the typical application circuits. These specifications apply over VIN=12V and TA= -40 ~ 85 °C, unless otherwise
specified. Typical values are at TA=25°C.

Symbol

Parameter Test Conditions

UNDER-VOLTAGE LOCK OUT PROTECTION (UVLO)

Rising threshold1, LDO3 enable
Rising threshold1_A/C, LDO3 &

LDO5 enable (For APW8822A/C)
Rising threshold2, LDO5 enable

VIN POR threshold

with soft stop.
When PWMx soft stop is complete,
LDO5 will begin to shutdown

with soft stop

PWM CONTROLLERS

Output Voltage Adjust Range

VFB

TSS

F
F

FBx Reference Voltage
FBx input current

IFB

Soft-Start Ramp Time
Soft-Stop Time

PWM1 Switching Frequency

SW1

PWM2 Switching Frequency

SW2

UGATEx Minimum Off-Time

VOUT1, VOUT2
TA = -40 oC to 85 oC
V

ENx High to V
LDO5=5V

ENx low to V
VIN=20V, PWM1=5V 240
VIN=20V, PWM2=3.33V 280

LOW DROUPUT LINEAR REGULATORS (LDO5/LDO3)

V

THBYP5

LDO5 Output Voltage

LDO3 Output Voltage

LDO5 Bypass Threshold for
VOUT1-to-LDO5 Switch On

VOUT1-to-LDO5 Switch On Resistance
LDOx Current Limit
LDOx Discharge On Resistance

VOUT1=GND, 6V<VIN<25V,
0<I

VOUT2=GND, 6V<VIN<25V,
0<I

Hysteresis
VOUT1=5V, 50mA
VOUTx=GND, LDOx = GND
I

LDOX

CHARGE PUMP CLOCK
V
V
F

CLKH

CLKL

CLK

High level voltage
Low level voltage
Clock frequency

I

VCLK

I

VCLK

TA=25 oC

PWM1/2 PROTECTIONS

Over Voltage Protection Threshold
Over Voltage Fault Propagation Delay

Current Limit Current Source

V
Delta voltage=10mV
V
On the basis of 25 oC - 4500 -

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Nov., 2012

Min. Typ. Max.

- 3.8 - V

- 3.8 -

- 5.1 - V

- 5.0 - V

- 3.7 - V

2 - 5.5 V

1.98 2.0 2.02 V

=2.0V, TA=25 oC

FBX

FBX

95% Regulation,

OUT

<0.1V

-20 - 20 nA

- 1.4 - ms

- 1.7 - ms

200 350 500 ns

<100mA

LDO5

<100mA

LDO3

4.8

3.2

VOUT1 Regulation Voltage Rising 4.55

0.15

-

150

=5mA

=-10mA, LDO5=5V, TA=25 oC
=10mA, LDO5=5V, TA=25 oC

Rising

FBX

=1V, TA = 25 oC

ILIMx

- 50 100

- 4.92

0.06 -

- 270 - kHz

120 125 130 %

- 3 -

9 10 11

APW8822

300 360
355 430

5.0

3.33

4.7

0.25 0.3

1.5

250

www.anpec.com.tw5

5.2

3.46

4.85

3

350

-

Unit

V

kHz

V

V

V

Ω

mA

Ω

V

µs

µA

ppm/oC

APW8822/A/B/C

Electrical Characteristics (Cont.)

Refer to the typical application circuits. These specifications apply over VIN=12V and TA= -40 ~ 85 °C, unless otherwise
specified. Typical values are at TA=25°C.

Symbol

PWM1/2 PROTECTIONS

POWER GOOD

LOGIC LEVELS

ILIMx Adjustment Range
ENILIMx Adjustment Range

Maximum setting voltage

Current limit comparator offset
Zero-Crossing Threshold

Under-Voltage Protection Threshold
Under-Voltage Protection Debounce

Interval
Under-Voltage Protection Enable

Blanking Time

Over-Temperature Protection Threshold

POK Threshold

POK Propagation Delay
POK Enable Delay
POK Sink current

POK Leakage Current

ENx Input Voltage Level

Input leakage current

ENILIMx Input Voltage

ENLDO Input Voltage

ENLDO pin pull high function

Parameter Test Conditions

V
V

V
Threshpld
(V
V

V

From EN signal go high to SS_OK
TJ Rising - 160 -

Hysteresis - 25 -

POK in from Lower
(POK goes high)

POK hysteresis
POK in from higher (POK goes low) 120 125 130

From EN signal go high to POK go
High

V
V

Enable
Shutdown 0.6 - ­VEN=5V
Enable
Hysteresis - 60 ­Shutdown
Enable, VCLK=off 0.8 - 1.6
Enable, VCLK=on 2.4 - ­Short Current, ENLDO is short to

GND
Open Voltage, ENLDO is open(pull

high to internal regulator)

ILIMx-GND

ENILIMx-GND

ILIMx

ILIMx

PGND – PHASE

POK

POK

=5V, Setting Current Limit

ILIMx-GND-VPGND-PHASEx

=920mV

= 500mV
= 5V

),

APW8822

Min. Typ. Max.

0.2 - 2 V

0.515 - 2 V
205 250 - mV

-8

-5 0 5 mV

65 70 75 %

- 25 -

- 2 - ms

87 90 93

- 3 -

- 63 -

- 2 - ms

2.5 7.5 mA

- 0.1 1

- - 1.2

0.1 1

300 400 500

- - 0.4

- 1 -

2.4 3.34 - V

0

Unit

8 mV

µs

o

%

µs

µA

µA

mV

µA

C

V

V

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Nov., 2012

www.anpec.com.tw6

APW8822/A/B/C

Electrical Characteristics (Cont.)

Refer to the typical application circuits. These specifications apply over VIN=12V and TA= -40 ~ 85 °C, unless otherwise
specified. Typical values are at TA=25°C.

Symbol

GATE DRIVERS

UG Pull-Up Resistance V
UG Sink Resistance V
LG Pull-Up Resistance V
LG Sink Resistance V
Dead Time UG falling to LG rising - 20 - ns

LG falling to UG rising - 20 -

BOOTSTRAP SWITCH

Forward Voltage

VF

Reverse Leakage

IR

Parameter Test Conditions

BOOTx

UGATEx

LDO5

LGATEx

V

LDO5

V

BOOTx-GND

V

LDO5

– V

– V
– V
– V

– V

= 5V

=250mV - 3 5

UGATEx

=250mV - 1.7 2.5

PHASEx

=250mV - 3 5

LGATEx

=250mV - 1 2

PGND

, IF = 10mA

BOOTx-GND

= 30V, V

PHASEx

= 25V,

APW8822

Min. Typ. Max.

- 0.4 0.5 V

- - 0.5

Unit

Ω
Ω
Ω
Ω

ns

µA

Copyright  ANPEC Electronics Corp.

www.anpec.com.tw7

Rev. A.2 - Nov., 2012

APW8822/A/B/C

Typical Operating Characteristics

5.15

Load Regulation

Vout=5V

5.1

5.05

5

Outpur Voltage (V)

495

4.9

0.001 0.01 0.1 1

Output current(A)

VIN=8V
VIN=12V

VIN=20V

3.43

Load Regulation

Vout=3.3V

3.38

3.33

Outpur Voltage (V)

3.28

10

3.23

0.001 0.01 0.1 1

Output current(A)

VIN=8V
VIN=12V

VIN=20V

10

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Nov., 2012

www.anpec.com.tw8

APW8822/A/B/C

Operating Waveforms

Refer to the typical application circuit. The test condition is VIN=12V, TA=25oC unless otherwise specified.

V

EN1=EN2

1

2

4

CH1: EN1=EN2, 5V/Div
CH2: V
CH3: V
CH4: V

OUT1
OUT2

, 10V/Div

POK

, 2V/Div
, 2V/Div

TIME: 500us/Div

Start-Up

V

POK

5V Load Transient

V

V

OUT1

OUT2

V

EN1=EN2

1

V

OUT1

2
3

V

OUT2

V

POK

4

CH1: EN1=EN2, 5V/Div

CH2: V

CH3: V

CH4: V

OUT1
OUT2

, 10V/Div

POK

, 2V/Div
, 2V/Div

TIME: 500us/Div

Output-Discharge

3.3V Load Transient

V

out1

1

V

OUT2

2

V

PHASE1

3

I

OUT1

4

CH1: Vout1, 100mV/Div, AC
CH2: Vout2, 100mV/Div, AC

CH3: V
CH4: I

PHASE1

OUT1

, 5A/Div

, 20V/Div, DC

TIME: 20us/Div

Copyright  ANPEC Electronics Corp.
Rev. A.2 - Nov., 2012

V

out2

2

V

OUT1

1

V

PHASE2

3

I

OUT2

4

CH1: Vout1, 100mV/Div, AC
CH2: Vout2, 100mV/Div, AC

CH3: V
CH4: I

PHASE2

OUT2

, 5A/Div

, 20V/Div, DC

TIME: 20us/Div

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