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AN30185A-EVB-0

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28
AN30185A
7
Ver. BEB
*1V—0.9—FB2 = 1.8 V → 0 V
DD2
SCP
DC-DC2 Ground-short detection
voltage
*1°C—160—Temperature error detectionTJSOTSD operating temperature
*1V—0.5—FB1 = 1.0 V → 0 V
DD1
SCP
DC-DC1 Ground-short detection
voltage
*1ms—1——
TLAT
CH
Timer latch time
*1μA—2.5—PCNT = 3.3 VIPCNTPCNT sink current
*1ms—30——
RST
DLY
Reset delay
*1μs—50—
I
OUT(BUF)
= 0 A
The time until 90 % from 10 %
of target value.
BUF
TSTU
BUF start time
*1Ω—80—EN = 0 V
BUF
RDIS
BUF discharge resistance
*1mV—100—
I
OUT(BUF)
= 10 mA → 10 μA
Δ t = 1 μs
BUF
DVAC
2
BUF load transient response 2
*1mV—160—
I
OUT(BUF)
= 10 μA → 10 mA
Δ t = 1 μs
BUF
DVAC
1
BUF load transient response 1
*1dB—–50—
I
OUT(BUF)
= 10 μA
f = 10 kHz
BUF
PSR
BUF PSRR
*1mA—10—BUF = 0V
BUF
ILMT
BUD output current limit
[DC-DC1] (1.0 V DC/DC step-down regulator)
[DC-DC2] (1.8 V DC/DC step-down regulator)
*1mV—5—I
OUT(BUF)
= 10 μA → 10 mA
BUF
REG
LD
BUF load regulation
*1mV—0—
V
IN
= 2.9V → 5.5V
I
OUT(BUF)
= 10 μA
BUF
REG
IN
BUF line regulation
Reference values
Typ
Unit
Max
Notes
Min
ConditionsSymbolParameter
ELECTRICAL CHARACTERISTICS (Continued)
V
IN
= AVIN = PVIN1 = PVIN2 = 3.3V
[DC-DC1] Cout = 10
μF (GRM21BB31A106K[Murata] ) , Lout = 2.2 μH ( NR3012T2R2M[Taiyo Yuden] )
[DC-DC2] Cout = 10
μF (GRM21BB31A106K[Murata] ) , Lout = 2.2 μH ( NR3012T2R2M[Taiyo Yuden] )
T
a
= 25 °C ± 2 °C unless otherwise noted.
*1 䋺Typical Value checked by design.
AN30185A
8
Ver. BEB
ON/OFF control pinInputEN1
Feed Back pin ( for DC-DC2 )InputFB22
Ground pinGroundAGND23
DCDC2 and BUF control pinInputEN24
Discharge pin ( open drain )OutputDIS5
External Pch MOSFET gate control pinOutputPCNT6
Power supply pin ( for DC-DC1 )Power supplyPVIN17
Power supply pin ( for DC-DC1 )Power supplyPVIN18
Driver output pin ( for DC-DC1 )OutputLX19
Driver output pin ( for DC-DC1 )OutputLX110
Ground pin ( for DC-DC1 )GroundPGND111
Ground pin ( for DC-DC1 )GroundPGND112
Reset output pin ( open drain )OutputRESET13
Feed Back pin ( for DC-DC1 )InputFB114
Ground pinGroundAGND115
LDO output pin ( Power supply for internal control circuit / 2.55 V )OutputVREG16
Power supply pinPower supplyAVIN17
LDO output pin ( 0.9 V )OutputBUF18
Power supply pin ( for DC-DC2 )Power supplyPVIN219
Power supply pin ( for DC-DC2 )Power supplyPVIN220
Driver output pin ( for DC-DC2 )OutputLX221
Driver output pin ( for DC-DC2 )OutputLX222
Ground pin ( for DC-DC2 )GroundPGND223
Ground pin ( for DC-DC2 )GroundPGND224
DescriptionTypePin namePin No.
PIN CONFIGURATION
PIN FUNCTION
Top View
16
7
10
12
13
18
19
20
24
21
22
23
17
16 15 14
11
8
9
5432
PGND2
PGND2
LX2
LX2
PVIN2
PVIN2
BUF
AVIN
VREG
AGND1
FB1
RESET
PGND1
PGND1
LX1
LX1
PVIN1
PVIN1
PCNT
DIS
EN2
AGND2
FB2
EN
Notes) Concerning detail about pin description, please refer to OPERATION and APPLICATION INFORMATION section.
AN30185A
9
Ver. BEB
17 : AVIN
13 : RESET
1 : EN
UVLO
RESET
BGR
VREG
16 : VREG
0.94 ms
delay
Driver
Control
logic
OCP
7,8 : PVIN1
9,10 : LX1
11,12 : PGND1
14 : FB1
19,20 : PVIN2
21,22 : LX2
23,24 : PGND2
2 : FB2
2.81 ms
delay
Enable
Enable
TSD
Enable
ENC
5 : DIS
6 : PCNT
Enable
PCNT
1.24 V
SHP
DC-DC1 (1.0 V, 800 mA)
DC-DC2 (1.8 V, 800 mA)
OSC
15 : AGND1
3 : AGND2
Driver
Control
logic
OCP
SHP
BUF
18 : BUF
0.47 ms
delay
4 : EN2
FUNCTIONAL BLOCK DIAGRAM
Notes) This block diagram is for explaining functions. Part of the block diagram may be omitted, or it may be simplified.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28

AN30185A-EVB-0

Mfr. #:
Buy AN30185A-EVB-0
Manufacturer:
Panasonic
Description:
Other Development Tools Multi DCDC Eval Board AN30185A-VL
Lifecycle:
New from this manufacturer.
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