AN30181A-VL Panasonic Electronic Components, AN30181A-VL Datasheet
AN30181A-VL
Specifications of AN30181A-VL
Related parts for AN30181A-VL
AN30181A-VL Summary of contents
Page 1
... Publication date: October 2012 DESCRIPTION AN30181A is a power management LSI which has DC-DC Step Down Regulators (2-ch) that employs hysteretic control system. By this system, when load current changes suddenly, it responds at high speed and minimizes the changes of output voltage ...
Page 2
... stg EN,FB1,FB2 – 0 LX1,LX2,PCNT,PCNTB,DIS, – 0 RESET,BUF,VREG HBM (Human Body Model) + 0.3) V must not be exceeded θ PD(Ta=25°C) JA 84.9 °C /W 1.472 W 2 AN30181A Rating Unit 6.0 V °C – °C – 150 °C – 150 + 0. 0. PD(Ta=85°C) Notes 0 ...
Page 3
... FB1 – 0.3 — FB2 – 0.3 — LX1,LX2 – 0.3 — PCNT – 0.3 — PCNTB – 0.3 — DIS – 0.3 — RESET – 0.3 — BUF – 0.3 — VREG – 0.3 — 3 AN30181A Max. Unit Notes * ...
Page 4
... DET VRST = 0 V → 3 RMV RON RESET inflowing current = 330 μA RST (10 kΩ pull-up resistor to 3.3 V) RON DIS BUF = 10 μA I OUT(BUF) VOUT 4 AN30181A Limits Unit Notes Min Typ Max μA — 200 300 — — 0 0.3 V — 1.5 3 — ...
Page 5
... V IN EFF3 I = 500 mA OUT2 DD1 OUT1 VRPL1 DD1 I = 450 mA OUT1 VRPL2 DD2 OUT2 VRPL1 DD2 I = 500 mA OUT2 VRPL2 5 AN30181A Reference values Unit Notes Min Typ Max μA — 0 — *1 — 6 — — 8 — — 10 — — ...
Page 6
... Capacitive load : 26 μF DD1 OUT1 TSTU The time until 90 % from target value. Capacitive load : 24 μF DD2 OUT2 TSTU The time until 90 % from target value. 6 AN30181A Reference values Unit Notes Min Typ Max — 25 — — 25 — — ...
Page 7
... The time until 90 % from 10 % TSTU of target value. RST — DLY IPCNT PCNT = 3.3 V TLAT — CH DD1 FB1 = 1.2 V → SCP DD2 FB2 = 1.8 V → SCP TJSO Temperature error detection 7 AN30181A Reference values Unit Notes Min Typ Max — 0 — — 5 — — 10 — ...
Page 8
... LDO output pin ( Power supply for internal control circuit / 2. Power supply pin LDO output pin ( 0 Power supply pin ( for DC-DC2 ) Power supply pin ( for DC-DC2 ) Driver output pin ( for DC-DC2 ) Driver output pin ( for DC-DC2 ) Ground pin ( for DC-DC2 ) Ground pin ( for DC-DC2 ) 8 AN30181A PGND1 12 PGND1 11 LX1 10 LX1 9 8 ...
Page 9
... Notes) This block diagram is for explaining functions. Part of the block diagram may be omitted may be simplified. RESET Enable DC-DC1 (1.2 V, 800 mA) SHP Enable ENC DC-DC2 (1.8 V, 800 mA) Enable SHP Enable BUF 9 AN30181A 13 : RESET PCNT 6 : PCNT 5 : DIS 4 : PCNTB 14 : FB1 OCP 7,8 : PVIN1 9,10 : LX1 Control Driver logic ...
Page 10
... OPERATION 1. Pin Setting For Start / Stop Control EN DC-DC1(1.0V) External Pch-MOSFE Gate control circuit DC-DC2(1.8V) BUF(0.9V) High AN30181A Low OFF OFF OFF OFF Ver. BEB ...
Page 11
... OPERATION (Continued) 2. Start / Stop Control Timing Chart Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. Start / Stop control of AN30181A is performed by EN pin UVLO RESET 100 μs FB1 3. PCNT DIS (3.3 V line) ...
Page 12
... Note) All values given in the above figure are typical values 1.2 V Constant current discharge (2.5 μA) 300 μs 3 150 μs 3.75 ms 1 μs 8 AN30181A 2.92 V 2.81 V Voltage which recognized that EN is Low-level. Natural Terminated discharge with a resistor V IN Terminated with a resistor Terminated Natural with a resistor ...
Page 13
... BUF (Output voltage : 0.9 V) BUF pin outputs 0 8.5 ms delay after UVLO is released. BUF starts, preventing rush current and overshoot. BUF stops because UVLO detects. BUF is terminated with a resistor when EN pin shifts to Low. AN30181A and DIS pin is terminated with a resistor Ver. BEB ...
Page 14
... BUF has limit characteristics, which the output current decreases as the output voltage falls. The peak input current is 40 mA(typ). The input current at BUF = mA(typ). Output voltage 0.8A to 2 1.6A(typ) Output current 14 AN30181A Output current b) BUF Ver. BEB ...
Page 15
... Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. Protection sequence When the following state continues for 1 ms(typ), AN30181A shifts to the protection sequence. — Any of DCDC1 and DCDC2 shorts to GND. (Output voltage is 50% or lower of target value.) — ...
Page 16
... GND. Since each function is not latched unlike the case of [3.Protection : Protection sequence], it recovers by the release of ground-short. The operation is as follows. 2.55 V VREG 2.1 V RESET 1.2 V FB1 PCNT 3.3 V DIS (3.3 V line) PCNTB 1.8 V FB2 BUF Normal operation Ground-short release Ground-short 3. 7.5 ms 8.5 ms OFF state Normal operation (Start sequence) 16 AN30181A 30 ms Ver. BEB ...
Page 17
... TYPICAL CHARACTERISTICS CURVES (1) Output ripple voltage VIN = 3 Cout = 10 μF ( GRM21BB31A106K[Murata Lout = 2.2 μH ( NR3012T2R2M[Taiyo Yuden] ) DC-DC1 Iout1 = 10 mA LX1 Vout1 DC-DC1 Iout1 = 450 mA LX1 Vout1 DC-DC2 Iout2 = 10 mA LX2 Vout2 DC-DC2 Iout2 = 500 mA LX2 Vout2 17 AN30181A Ver. BEB ...
Page 18
... TYPICAL CHARACTERISTICS CURVES (Continued) (1) Output ripple voltage VIN = 5 Cout = 10 μF ( GRM21BB31A106K[Murata Lout = 2.2 μH ( NR3012T2R2M[Taiyo Yuden] ) DC-DC1 Iout1 = 10 mA LX1 Vout1 DC-DC1 Iout1 = 450 mA LX1 Vout1 AN30181A DC-DC2 Iout2 = 10 mA LX2 Vout2 DC-DC2 Iout2 = 500 mA LX2 Vout2 18 Ver. BEB ...
Page 19
... Iout1 = 200 mA , Δ μsec Iout1 LX1 Vout1 DC-DC1 Iout1 = 200 Δ μsec Iout1 LX1 Vout1 AN30181A DC-DC2 Iout2 = 250 mA , Δ μsec Iout2 LX2 Vout2 DC-DC2 Iout2 = 250 Δ μsec Iout2 LX2 ...
Page 20
... Iout1 = 200 mA , Δ μsec Iout1 LX1 Vout1 DC-DC1 Iout1 = 200 Δ μsec Iout1 LX1 Vout1 AN30181A DC-DC2 Iout2 = 250 mA , Δ μsec Iout2 LX2 Vout2 DC-DC2 Iout2 = 250 Δ μsec Iout2 LX2 ...
Page 21
... Cout = 10 μF ( GRM21BB31A106K[Murata Lout = 2.2 μH ( NR3012T2R2M[Taiyo Yuden] ) DC-DC1 1.4 1.35 Iload =450mA 1.3 1.25 1.2 1.15 1.1 1.05 1 2.5 3 3.5 4 Input Voltage [V] DC-DC2 VIN=3.3V VIN=5.0V 100 1000 DC-DC2 500 600 700 800 DC-DC2 4 AN30181A 100 VIN=3.3V 60 VIN=5. 100 Load Current [mA] 2 1.95 VIN=3.3V 1.9 VIN=5.0V 1.85 1.8 1.75 1.7 1.65 1.6 0 100 200 300 ...
Page 22
... You are fully responsible for the incorporation of the above application circuit and information in the design of your equipment. 3.3V 3.3V R-RST PCNT U1 DIS FB1 VOUT1 LX1 L-OUT1 C-OUT1 FB2 VOUT2 LX2 L-OUT2 C-OUT2 BUF C-BUF PGND2 22 AN30181A Figure : Bottom Layer with silk screen ( Bottom View )with Evaluation board Ver. BEB ...
Page 23
... F 1 Murata 4.7 μ Murata 1 μF 1 Murata 1 μF 1 Murata 10 μF 1 Murata 10 μF 1 Murata 2.2 μH 1 TAIYO YUDEN 2.2 μH 1 TAIYO YUDEN 1 — Panasonic 10 K Ω 1 Panasonic 23 AN30181A Part Number GRM21BB31A475KA74L GRM21BB31A475KA74L GRM21BB31A475KA74L GRM155B31A105KE15D GRM155B31A105KE15D GRM21BB31A106KE18L GRM21BB31A106KE18L NR3012T2R2M NR3012T2R2M MTM76111 ERA3ARW103V Ver. BEB ...
Page 24
... PACKAGE INFORMATION (Reference Data) Package Code : HQFN024-P-0404 Body Material Lead Material Lead Finish Method : Au Plating 24 AN30181A Unit: Free : Epoxy Resin : Cu Alloy Ver. BEB ...
Page 25
... Please use this product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. Our company shall not be held responsible for any damage incurred as a result of your using the LSI not complying with the applicable laws and regulations. AN30181A 25 Ver. BEB ...
Page 26
... Verify the risks which might be caused by the malfunctions of external components. 11. Connect the metallic plates on the back side of the LSI with their respective potentials (AGND, PVIN, LX). The thermal resistance and the electrical characteristics are guaranteed only when the metallic plates are connected with their respective potentials. AN30181A 26 Ver. BEB ...
Page 27
Request for your special attention and precautions in using the technical information and (1) If any of the products or technical information described in this book exported or provided to non-residents, the laws and regulations of the ...