Datasheet
One Package Regulator Series
0.65A Output, Fully Integrated,
Step-down Switching Power Supply Module
BZ6Axx06GMP Series
●General
Description
Tne BZ6Axx06GMP is a fully integrated power supply
module that is useful for shortening the product at the
design period and shortening the product launch time for
electronics product, communication of portable it,
and various applications industrial etc.
BZ6Axx06GMP is based on a high efficiency 6MHz
synchronous step-down switching regulator. It provides
up to 0.65A load current and an input voltage range from
2.3V to 5.5V, optimized for battery powered portable
applications.
BZ6Axx06GMP has a mode control pin that allows the
user to select Forced PWM(Pulse Width Modulation)
mode or PFM(Pulse Frequency Modulation) and PWM
auto change mode utilized power save operation at light
load current.
●Features
No External components required SMPS
Fast transient response
Automatic PFM/PWM operation
Forced PWM operation
Internal Soft Start
Under voltage lockout
Over current protection
Thermal shutdown
Ultra small and low profile package
●Applications
Smart Phones, Cell phones, Portable applications,
POL applications, RF applications, and USB Line Application
●Package(s)
BGA-MDP
W(Typ.) x D(Typ.) x H(Max.)
2.90mm x 2.30mm x 1.05mm
●Typical
Application Circuit(s)
Vin=2.3~5.5V
VIN
VIN
A3
A2
B2
C3
C2
A1
VOUT
Vout
From
Controller
GND
EN
GND
GND
B1
MODE
From
Controller
GND
C1 GND
Figure 1. Typical Application Circuit(s)
●Lineup
機種名
BZ6A1206GMP
BZ6A1806GMP
BZ6AB906GMP
出力電圧
1.20V
1.80V
1.85V
●Pin
Configuration(s) (Top View)
Coil
Cin
●Pin
Description(s)
Pin No.
1
2
3
4
5
6
7
8
Symbol
A1
A2
A3
B1
B2
C1
C2
C3
Name
VOUT
VIN
VIN
MODE
EN
GND
GND
GND
Function
Output pin
Power supply input pin
Power supply input pin
Forced PWM mode pin
Enable pin
GND pin
GND pin
GND pin
Co
INDEX
MARK
Figure 2. Pin Configuration(s)
○½品構造：シリコンモノリシック集積回路
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BZ6Axx06GMP Series
●Block
Diagram(s)
L ： PWM/PFM MODE
H ： PWM MODE
Datasheet
MODE
TSD
UVLO
PWM/PFM
control
VIN
Cin
2.3½ 5.5V
FB
VOUT
-
+
ERROR COMP
VREF
Switching
Control Logic
and
Gate Driver
L
VOUT
Co
H ： ON
L ： OFF
EN
SHUTDOWN
Frequency
control
GND
Figure 3. Block Diagram(s)
Cin : C1005X5R0J225M
Co : C1005X5R0J475M
L : MDT2012-CLH1R0M
●Description
of Block(s)
The BZ6Axx06GMP are a synchronous step-down DC/DC converter that achieves fast transient response from light load to
heavy load by hysteretic PWM control system and current constant PFM control system.
○PWM
control
BZ6Axx06GMP operates by hysteretic PWM control. This scheme ensures fast switching, high efficiency, and fast transient
response.
When the output voltage is below the VREF voltage, the error comparator output is low to high and turning on P-channel
MOSFET until above the VREF voltage and minimum on time.
○PFM
control
At light load the regulator and MODE=low, the regulator operates with reduced switching frequency and improves the efficiency.
During PFM operation, the output voltage slightly
higher than typical output voltage.
Figure 4. Operation of PFM mode and PWM mode
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BZ6Axx06GMP Series
●Description
of operations
1) Shutdown
If the EN input pin set to low (<0.4V), all circuit are shut down and the regulator is standby mode.
Do not leave the EN pin floating.
Datasheet
2) Soft start function
The regulator has a soft start circuit that reduces in-rush current at start-up. Typical start up times with a 4.7uF output
capacitor is 120usec.
3) Current limit
The BZ6Axx06GMP has a current limit circuit that protects itself and external components during overload condition.
4) Under Voltage Lock Out (UVLO)
The BZ6Axx06GMP has a Under Voltage Lock Out circuit that turn off device when VIN>2.05V(typ.)
5) FORCED PWM MODE
Setting MODE pin high (>1.4V) places the regulator in forced PWM.This control provides noise reduction and output
stability.
Do not leave the MODE pin floating.
6) TSD
The BZ6Axx06GMP has a thermal shutdown feature to protect the device if the junction temperature exceeds 150℃.In
thermal shutdown, the DRIVER is disabled.
This circuit is only to cut off the IC from thermal runaway, and has not been design to protect or guarantee the IC. Therefore,
the user should not plan to activate this circuit with continued operation in mind.
●Absolute
Maximum Ratings
Parameter
(Ta=25℃)
Symbol
VIN
Pd
Topr
Tstg
Tjmax
Rating
7
0.75
*1
-40 to +85
-55 to +125
+125
Unit
V
W
℃
℃
℃
Maximum input power supply voltage
Power dissipation
Operating temperature range
Storage temperature range
Junction temperature
*1 When mounted on the specified PCB (55mm x 63mm), Deducted by 3.9m W/c when used over Ta=25c
●Recommended
Operating Rating(s)
Rating
Min.
2.3
0
Typ.
Max.
5.5
0.65
Parameter
Input voltage
Output current
Symbol
VIN
IOUT
Unit
V
A
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TSZ02201-0F2F0A100010-1-2
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BZ6Axx06GMP Series
●Electrical
Characteristic(s)
Item
【Switching
regulator】
Output voltage accuracy
【Soft
start】
Soft start time
【Control】
EN pin control
voltage
MODE pin
control voltage
【UVLO】
Protect threshold voltage
Hysteresis
【Circuit
current】
Operating quiescent current
Shutdown current
IINS
SHD
-
-
45
0
72
1
uA
uA
Uvth
Uvhy
1.95
50
2.05
100
2.15
150
V
mV
Operation
Non Operation
Operation
Non Operation
VENH
VENL
VMODEH
VMODEL
1.4
0
1.4
0
-
-
-
-
VIN
0.4
VIN
0.4
V
V
V
V
Forced PWM
Tss
65
120
240
usec
VOUTA
-2.5
-2.5
-
-
+2.5
+3.5
%
(unless otherwise specified VIN=3.6V, Ta=25℃)
Symbol
Rating
Typ.
Unit
Datasheet
Min.
Max.
Condition
MODE:H(PWM Operation)
MODE:L(PFM Operation)
Automatic PFM/PWM
EN:H, MODE:L,
VOUT=3.6V forced
Not switching
EN=0V
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BZ6Axx06GMP Series
●Electrical
characteristic curves (Reference data)
BZ6A1206GMP(1.2V OUTPUT)
Datasheet
EN
2V/div
EN
2V/div
VOUT
500mV/div
20us
VOUT
500m/div
100us
Figure 5. Start up
Figure 6. Shut down
Vout
50mV/div
1.2V offset
Vout
50mV/div
1.2V offset
20us
IOUT
200mA/div
IOUT
200mA/div
20us
Figure 7. Load transient response 5mA to 200mA
tr=tf=100ns, MODE : Low
Figure 8. Load transient response 50mA to 350mA
tr=tf=100ns, MODE : Low
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TSZ22111・15・001
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TSZ02201-0F2F0A100010-1-2
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