Device Modeling Report
COMPONENTS: CMOS Low-Dropout Regulator
PART NUMBER: TCR4S15DWBG
MANUFACTURER: TOSHIBA
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2012
1

Output Voltage vs. Input Voltage Characteristics
Circuit Simulation Result
2.0V
1.5V
1.0V
0.5V
0V
0V 1.0V 2.0V 3.0V 4.0V 5.0V 6.0V
V(OUT)
V_VIN
Evaluation circuit
U1
TCR4S15DWBG
IN OUT
IN OUT
CTRL GND
VIN CIN Co RL
0.1uF Vctrl 1uF 30
2.5
0
Simulation result
Condition: IOUT=50mA, CIN=0.1uF, COUT=1uF
Condition Unit Measurement Simulation %Error
Parameter
VOUT VIN=2.5V V 1.5 1.500 0
VIN-VOUT VOUT=1.4V V 0.11 0.1114 1.27
All Rights Reserved Copyright (c) Bee Technologies Inc. 2012
2

Line Regulation Characteristics
Circuit Simulation Result
1.52V
1.51V
1.50V
1.49V
1.48V
2.0V 3.0V 4.0V 5.0V 6.0V
V(OUT)
V_VIN
Evaluation circuit
U1
TCR4S15DWBG
IN OUT
IN OUT
CTRL GND
VIN CIN Co RL
0.1uF Vctrl 1uF 1.5k
2.5
0
Simulation result
Condition: IOUT=1mA, CIN=0.1uF, COUT=1uF
Condition Unit Measurement Simulation %Error
Parameter
Regline 2V  VIN  6V mV 1 1 0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2012
3

Load Regulation Characteristics
Circuit Simulation Result
1.6V
1.5V
1.4V
0A 50mA 100mA 150mA 200mA
V(OUT)
I_Io
Evaluation circuit
U1
TCR4S15DWBG
IN OUT
IN OUT
CTRL GND
VIN CIN Co IOUT
2.5 0.1uF Vctrl 1uF
2.5
0
Simulation result
Condition: VIN=2.5V, CIN=0.1uF, COUT=1uF
Condition Unit Measurement Simulation %Error
Parameter
Regload 1mA  IOUT  150mA mV 5 4.93
All Rights Reserved Copyright (c) Bee Technologies Inc. 2012
4

Quiescent Current Characteristics
Circuit Simulation Result
-240uA
-200uA
-160uA
-120uA
-80uA
-40uA
0A
0V 2.0V 4.0V 6.0V
I(U1:GND)
V_VIN
Evaluation circuit
U1
TCR4S15DWBG
IN OUT
IN OUT
CTRL GND
VIN CIN Co IOUT
2.5 0.1uF Vctrl 1uF
2.5 0Adc
0
Simulation result
Condition: VIN=2.5V, CIN=0.1uF, COUT=1uF
Condition Unit Measurement Simulation %Error
Parameter
IB IOUT=50mA, uA 39 38.968
All Rights Reserved Copyright (c) Bee Technologies Inc. 2012
5

Overcurrent Protection Characteristics
Circuit Simulation Result
2.5V
2.0V
1.5V
1.0V
0.5V
0V
0A 100mA 200mA 300mA 400mA 500mA 600mA
V(OUT)
I(OUT)
Evaluation circuit
E1
U1 OUT EVALUE
TCR4S15DWBG 0 V(NL1,0)*(V(NL2,0)-1)
IN OUT
IN OUT OUT+ IN+
OUT- IN-
VIN CIN CTRL GND COUT NL1
0.1u 1u 0
2.5 Vctrl R1
2.5 50
0
0 NL2
R2 V4
10MEG T1 = 0
T2 = 0.1
0 0 T3 = 0.5
T4 = 1
V1 = 1000
V2 = 1
V3 = 0.1
V4 = 0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2012
6

Load Transient Response Characteristics
Circuit Simulation Result
40mA
20mA
0A
I(IOUT)
1.55V
1.50V
1.45V
220us 260us 300us 340us 380us 420us
V(OUT)
Time
40mA
20mA
0A
I(IOUT)
1.55V
1.50V
SEL>>
1.45V
0s 5us 10us 15us 20us 25us 30us 35us 40us 45us
V(OUT)
Time
Evaluation circuit
U1
TCR4S15DWBG
OUT
IN OUT
IN
IOUT
CTRL GND I1 = 1m
I2 = 30m
VIN CIN Vctrl COUT TD = 10u
0.1u 2.5 1.0u TR = 1.5u
2.5Vdc TF = 1.5u
PW = 250u
PER = 1
0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2012
7