TECHNICAL NOTE
Power Management IC Series for Mobile Phones
High-efficiency
Power Management IC
BH6053GU, BH6951GU, BH6952GU
Description
The High-Efficiency Power Management IC is considered to be the best power supply for CPU application. It integrates a
step-down DC/DC converter and a multi channel LDO for portable devices. Each LDO can be controlled externally.
Features
1) Fixed operation frequency (f=1.1MHz)
2) Low-current consumption at low load by using a LDO configured with a DC/DC converter
3) Includes soft start
4) Compact package
5) Includes over current limiter
6) Includes TSD (Thermal Shut Down)
7) Includes UVLO (Under Voltage Look Out)
Applications
The device is suitable for use with all portable equipment, such as cellular phones, digital cameras, portable music players,
portable video games and PDAs.
Product Lineup
Parameter
LDO ch number
DC/DC converter ch number
Package
BH6053GU
5ch
1ch
VCSP85H3 (32pin)
3.54mm×3.54mm
BH6951GU
-
1ch
VCSP85H2 (16pin)
2.60mm×2.60mm
BH6952GU
2ch
1ch
VCSP85H3 (24pin)
3.06 mm×3.06mm
Ver.B Nov.2005
Absolute maximum ratings
Parameter
Maximum applied voltage
BH6053GU
Power dissipation BH6951GU
BH6952GU
Operating temperature range
Storage temperature range
*1
*2
*3
50mm×58mm×1.75mm
50mm×58mm×1.75mm
50mm×58mm×1.75mm
Symbol
Vmax
Pd
Topr
Tstr
Limits
7
1350
*1
870
*2
1210
-30
to 75
-55
to 125
*3
Unit
V
mW
o
o
C
C
At glass epoxy board mounting. Reduced by 13.5mW/
o
C when more than Ta=25
o
C,
o
o
At glass epoxy board mounting. Reduced by 8.7mW/ C when more than Ta=25 C.
At glass epoxy board mounting. Reduced by 12.1mW/
o
C when more than Ta=25
o
C.
Recommended operating range
Parameter
BH6053GU
Power supply
BH6951GU
voltage
BH6952GU
Symbol
VCC
Limits
3.0 ~ 4.5
Unit
V
Condition
REG1I~5I, BATP voltage
BATP voltage
REG1I~2I, BATP voltage
Electrical characteristics
[BH6053GU circuit current]
o
Unless otherwise specified Ta=25 C, VCC=VBAT= REG1I= REG23I= REG4I = BATP= REG5I=3.6V
Parameter
[Circuit current (No load)]
CNT1,2,3,4,5 SWEN=0V
Circuit current
1
ICC1
-
9.1
14.0
µA
(Operated only reference
voltage source)
CNT1,2,3,4,5 =0V
SWEN,MODE=2.8V
CNT1,2,3,4,5=0V
SWEN =2.8V, MODE=0V
CNT1,2,5=2.8V, CNT3,4 =0V
SWEN =2.8V, MODE=0V
CNT1,2,5=2.8V, CNT3,4=0V
SWEN=0V, MODE=0V
CNT1,2,3,4,5=2.8V,
SWEN=0V, MODE=0V
Symbol
Min.
Typ.
Max.
Unit
Condition
Circuit current
Circuit current
Circuit current
Circuit current
Circuit current
2
3
4
5
6
ICC2
ICC3
ICC4
ICC5
ICC6
-
-
-
-
-
4.2
25
82
65
116
5.7
42.4
145
116
189
mA
µA
µA
µA
µA
[BH6951GU circuit current]
o
Unless otherwise specified Ta=25 C, VCC=VBAT= BATP=3.6V
Parameter
[Circuit current (No load)]
SWEN=0V
Circuit current
1
ICC1
-
8.1
12.8
µA
(Operated only reference
voltage source)
SWEN, MODE=2.8V
SWEN =2.8V, MODE=0V
Symbol
Min.
Typ.
Max.
Unit
Condition
Circuit current
Circuit current
2
3
ICC2
ICC3
-
-
4.2
24
5.8
42.5
mA
µA
2/16
[BH6952GU circuit current]
o
Unless otherwise specified Ta=25 C, VCC=VBAT= REG1I= REG2I= BATP=3.6V
Parameter
[Circuit current (No load)]
CNT1, 2, SWEN=0V
Circuit current
1
ICC1
-
8.1
13.0
µA
(Operated only reference
voltage source)
CNT1, 2=0V
SWEN, MODE=2.8V
CNT1, 2=0V
SWEN =2.8V, MODE=0V
CNT1, 2=2.8V
SWEN =2.8V, MODE=0V
CNT1, 2=2.8V
SWEN=0V, MODE=0V
Symbol
Min.
Typ.
Max.
Unit
Condition
Circuit current
Circuit current
Circuit current
Circuit current
2
3
4
5
ICC2
ICC3
ICC4
ICC5
-
-
-
-
4.2
24
54
37
5.7
41.4
91.8
62.9
mA
µA
µA
µA
[DC/DC converter]
o
Unless otherwise specified Ta=25 C, VCC=VBAT=3.6V
Parameter
[DC/DC converter]
1.5V
Output
voltage
1.2V
Output
voltage
Output
current
DC/DC mode
REG_L mode
DC/DC mode
REG_L mode
DC/DC mode
REG_L mode
Vosw1
Voldo1
Vosw2
Voldo2
Iosw
Ioldo
1.450
1.450
1.150
1.150
-
-
-
Efficiency
Eff
-
Switching frequency
Inductor: D312C (TOKO, INC)
Fosc
0.78
85
1.05
-
1.35
%
MHz
Io=200mA, Vo=1.5V
DC/DC mode
1.500
1.500
1.200
1.200
-
-
85
1.550
1.550
1.250
1.250
400
100
-
V
V
V
V
mA
mA
%
Io=100mA, Vo=1.5V
Io=400mA,MODE=3.6V
SWVSEL=0V
Io=50mA,MODE=0V
SWVSEL=0V
Io=400mA,MODE=3.6V
SWVSEL=3.6V
Io=50mA,MODE=0V
SWVSEL=3.6V
Symbol
Min.
Typ.
Max.
Unit
Condition
3/16
[REG1]
o
Unless otherwise specified Ta=25 C, VCC=VBAT =3.6V
Parameter
[REG1]
Circuit current
2.6V Output voltage
2.85V Output voltage
Output current
I/O voltage difference
I/O voltage difference
Load stability
Input stability
Output voltage temperature
coefficient
2.6V Ripple rejection ratio
2.85V Ripple rejection ratio
Current overload limiter
Output noise voltage
Iq
Vo1
Vo2
Io
Vsat1
Vsat2
dVo1
dVo2
dVo3
RR260
RR280
Iolim
VNO
-
2.544
2.794
200
-
-
-
-
-
50
50
-
-
15
2.600
2.850
-
0.2
0.2
24
3
+100
60
60
150
129
28
2.656
2.906
-
0.3
0.3
70
30
-
-
-
-
180
µA
V
V
mA
V
V
mV
mV
ppm/
o
C
dB
dB
mA
µVrms
VBAT=2.6V, Io=150mA
VBAT=2.85V, Io=150mA
Io=1 ~ 150mA
VBAT=3.1 ~ 4.5V, Io=150mA
Ta=-30 ~ 75
o
C, Io=150mA
Io=150mA, VBAT=3.6V, *1
Io=150mA, VBAT=3.7V, *1
Fold back, Vo=0V
BW=20 ~ 80kHz, Io=150mA
Io=0mA
Io=150mA, REG1VSEL=0V
Io=150mA, REG1VSEL=3.6V
Symbol
Min.
Typ.
Max.
Unit
Condition
*1 Input signal level : -14dBV, Input frequency : 1KHz, Measurement frequency band width : 20Hz to 80kHz
[REG2]
o
Unless otherwise specified Ta=25 C, VCC= VBAT =3.6V
Parameter
[REG2]
Circuit current
Output voltage
Output current
Load stability
Input stability
Output voltage temperature
coefficient
Ripple rejection ratio
Current overload limiter
Output noise voltage
Iq
Vo
Io
dVo1
dVo2
dVo3
RR52
Iolim
VNO
-
1.755
150
-
-
-
50
-
-
15
1.800
-
13
6
+100
60
160
119
28
1.845
-
60
30
-
-
-
160
µA
V
mA
mV
mV
ppm/
o
C
dB
mA
µVrms
Io=1 ~ 120mA
VBAT=3.0 ~ 4.5V, Io=120mA
Ta=-30 ~ 75
o
C, Io=120mA
Io=120mA,
*1
Fold back, Vo=0V
BW=20~80kHz, Io=120mA
Io=0mA
Io=120mA
Symbol
Min.
Typ.
Max.
Unit
Condition
*1 Input signal level : -14dBV, Input frequency : 1KHz, Measurement frequency band width : 20Hz to 80kHz
[REG3]
o
Unless otherwise specified Ta=25 C, VCC=VBAT =3.6V
Parameter
[REG3]
Output voltage
Output current
I/O voltage difference
Load stability
Input stability
Output voltage temperature
coefficient
Ripple rejection ratio
Current overload limiter
Output noise voltage
Vo
Io
Vsat
dVo1
dVo2
dVo3
RR62
Iolim
VNO
3.240
150
-
-
-
-
50
-
-
3.300
-
0.2
13
6
+100
60
150
123
3.360
-
0.3
60
30
-
-
-
160
V
mA
V
mV
mV
ppm/
o
C
dB
mA
µVrms
VBAT=3.3V, Io=150mA
Io=1~150mA
VBAT=3.5~4.5V, Io=150mA
Ta=-30~75
o
C, Io=150mA
Io=150mA, VBAT=4.2V, *1
Fold back, Vo=0V
BW=20~80kHz, Io=150mA
Io=150mA
Symbol
Min.
Typ.
Max.
Unit
Condition
*1 Input signal level : -14dBV, Input frequency : 1KHz, Measurement frequency band width : 20Hz to 80kHz
4/16
[REG4]
o
Unless otherwise specified, Ta=25 C, VCC=VBAT =3.6V
Parameter
[REG4]
Circuit current
Output voltage
Output current
Load stability
Input stability
Output voltage temperature
coefficient
Ripple rejection ratio
Current overload limiter
Output noise voltage
Iq
Vo
Io
dVo1
dVo2
dVo3
RR52
Iolim
VNO
-
1.755
50
-
-
-
50
-
-
35
1.800
-
8
1
+100
60
90
110
54
1.845
-
60
30
-
-
-
190
µA
V
mA
mV
mV
ppm/
o
C
dB
mA
µVrms
Io=1~50mA
VBAT=3.0~4.5V, Io=50mA
Ta=-30~75
o
C, Io=50mA
Io=50mA, *1
Fold back, Vo=0V
BW=20~80kHz, Io=50mA
Io=0mA
Io=50mA
Symbol
Min.
Typ.
Max.
Unit
Condition
*1 Input signal level : -14dBV, Input frequency : 1KHz, Measurement frequency band width : 20Hz to 80kHz
[REG5]
o
Unless otherwise specified, Ta=25 C, VCC=VBAT =3.6V
Parameter
[REG5]
Circuit current
1.5V output voltage
1.2V output voltage
Output current
Load stability
Input stability
Output voltage temperature
coefficient
Ripple rejection ratio
Current overload limiter
Output noise voltage
Iq
Vo1
Vo2
Io
dVo1
dVo2
dVo3
RR62
Iolim
VNO
-
1.460
1.160
50
-
-
-
50
-
-
20
1.500
1.200
-
8
1
+100
60
90
110
38
1.540
1.240
-
60
30
-
-
-
160
µA
V
V
mA
mV
mV
ppm/
o
C
dB
mA
µVrms
Io=1~30mA
VBAT=3.0~4.5V, Io=30mA
Ta=-30~75
o
C, Io=30mA
Io=30mA
Fold back, Vo=0V
BW=20~80kHz, Io=30mA
Io=0mA
Io=30mA,SWVSEL=0V
Io=30mA,SWVSEL=3.6V
Symbol
Min.
Typ.
Max.
Unit
Condition
*1 Input signal level : -14dBV, Input frequency : 1KHz, Measurement frequency band width : 20Hz to 80kHz
[Interface, UVLO]
o
Unless otherwise specified, Ta=25 C, VCC=VBAT= 3.6V
Parameter
[CPU
Interface
1
Symbol
Min.
Typ.
Max.
Unit
Condition
(CNT1,2,3,4,5,SWEN,MODE)]
IIH1
IIL1
(SWVSEL,REG1VSEL)]
IIH2
IIL2
VIH
VIL
(SWVSEL,REG1VSEL)]
VIH
VIL
VDETHL
VHYS
VCC×0.8
H Level Input current
L Level Input current
[CPU
Interface
2
H Level Input current
L Level Input current
[CPU
Interface
3
H Level Input voltage
L Level Input voltage
[CPU
Interface
4
H Level Input voltage
L Level Input voltage
[UVLO (Under Voltage Lock Out)]
Detecting voltage 1
Detection release hysteresis
-10
-10
-10
-10
1.4
-
1.95
0
0
0
-
0
-
-
2.5
50
5/16
10
10
10
10
-
0.25
VCC
VCC×0.2
µA
µA
µA
µA
V
V
V
V
V
mV
VIH=3.6V
VIL=0V
VIH=3.6V
VIL=0V
(CNT1,2,3,4,5,SWEN,MODE)]
-
2.4
25
2.6
100
VBAT=3.6→0V SWEEP