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PDF MAP7154 Data sheet ( Hoja de datos )
| Número de pieza | MAP7154 | |
| Descripción | 800mA Buck Converter | |
| Fabricantes | MagnaChip | |
| Logotipo |  |
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Confidential
Datasheet Version 1.0
Datasheet – MAP7154
6MHz, 800mABuck Converter for RFPA
General Description
The MAP7154 is synchronous buck converter for 3G,
3.5G and 4G RFPA (RF Power Amplifier).
The MAP7154 can operate at 6MHz switching
frequency and has 2.7V to 5.5V input voltage range,
800mA output current capability.
The MAP7154 has three output modes. In Seep
mode, output regulation is not required and MAP7154
may be entering in Sleep mode by setting VREF
nominally to 100mV, also very low IQ operation. In
Buck mode, output voltage can be programmed from
0.4V to 3.50V in proportion to VREF input voltage
ranged from 0.16V to 1.40V. Output voltage is the
same with input voltage in bypass mode. Bypass
mode reduces the voltage drop to less than 60mV.
These features enable RFPA to operate at higher
power efficiency saving its output power.
The MAP7154 has the protections, input under voltage
lockout, thermal shutdown and over current limit.
The MAP7154 is available in 1.32mm x 1.27mm
0.40mm pitch, 9 bumps WLCSP package
Features
2.7V to 5.5V input voltage range
0.4V to 3.50V output voltage in Buck mode
Low drop output voltage in Bypass mode
800mA output current
6MHz switching frequency
Up to efficiency : 96%
Soft-Start : 50us
Quiescent current in sleep mode :Typ.70uA
Shutdown current : Typ. 1uA
100% max duty
Fast load transient
Protections : Current limit, Thermal Shutdown
Package : 1.32mm x 1.27mm, 0.40mm-pitch,
9 bumps, WLCSP package
Applications
Mobile phones
Digital cameras
USB devices
Ordering Information
Part Number
MAP7154WCRH
Top
Marking
54LLL
Ambient
Temperature Range
-40℃ to +85℃
Package
1.32mmX1.27mm, 0.40mm pitch, 9 bumps WLCSP
RoHS Status
Halogen Free
Typical Application
MAP7154
VIN `
VIN SW
C1
EN
VREF
BYP
FB
SGND
PGND
L1
VOUT
C2
Aug. 2013
1 page  
Confidential
Datasheet Version 1.0
Electrical Characteristics
VIN = 3.7V, IOUT=200mA, CIN = 4.7F, EN=VIN, TA=-40°C to 85°C, unless otherwise noted. Typical values are at TA=+25°C
Parameter
General Input Output Specifications
VVIN Input Voltage Range
IQ Quiescent Current
ISHUTDOWN
Shutdown Current
VEN
Logic Input Level on
EN pin
IEN
VUVLO
Enable Input Current
VIN Rising
Vin hysteresis
Oscillator
FSW
Internal Oscillator
Frequency
DMAX
Maximum Duty Cycle (1)
Output Regulation
VOUT_ACC
VLINE_REG
VLOAD_REG
VVREF_SL_IN
VOUT Accuracy (2)
Line Regulation (1)
Load Regulation (1)
VREF Sleep Mode Enter
VVREF_SL_OUT VREF Sleep Mode Exit
VVREF_BYP_IN VREF Bypass Mode Enter
VVREF_BYP_OUT VREF Bypass Mode Exit
VVREF_TH_IN
Threshold voltage to enter
Bypass Mode
VVREF_TH_OUT
Threshold voltage to exit
Bypass Mode
TSL_IN
Sleep mode enter time (1)
TSL_OUT
TBUCK_TR
Sleep mode exit time (1)
Output voltage step
response rise time (1)
TBUCK_TF
Output voltage step
response fall time (1)
Internal Switches
RDS(ON)_H
High-side Switch On
Resistance –PMOS (1)
RDS(ON)_L
Low-side Switch On
Resistance – NMOS (1)
RDS(ON)_BYP Bypass FET Resistance (1)
Protection
TSD
Thermal Shutdown
Temperature
TSS Soft-Start time (1)
Test Condition
IOUT = 0mA, Sleep Mode
EN = Low
VEN_L : Logic Low
VEN_H : Logic High
EN=VIN or GND
Input High Threshold
Ideal = 2.5 x VREF (0.16V VREF 1.4V)
VREF voltage that force MAP7154 into Sleep
mode
VREF voltage that exit MAP7154 from Sleep
mode
VREF voltage that force MAP7154 into Bypass
mode
VREF voltage that exit MAP7154 from Bypass
mode
VIN - VOUT
VIN - VOUT
VREF < 50mV
VREF > 135mV
VIN = 3.7V, VOUT from 5% to 95%
(VOUT =1.4V ~ 3.4V), Rout=7Ω
VIN = 3.7V, VOUT from 5% to 95%
(VOUT =3.4V ~ 1.4V), Rout=7Ω
VIN = VGS =3.7V
VIN = VGS =3.7V
VIN = VGS =3.7V
Shutdown Temperature
Hysteresis, ΔTSD
EN=Low to High;
VIN =4.2V, VOUT =3.4V , COUT =4.7uF
Min Typ.
2.7
70
1
1.2
2.3
200
5.7 6.0
-3
-50
±5
±25
50
1.6
140 200
265 380
40
11
0.23
0.15
0.21
150
25
Note 1: Guaranteed by design; not test in production.
Note 2: Test condition: Open Loop test (only internal test setup), Linearity limits are ±3% or 50mV, whichever is larger.
Max
5.5
3
0.5
1.0
2.6
6.3
100
+3
+50
135
1.4
260
495
10
10
50
Unit
V
uA
uA
V
uA
V
mV
MHz
%
%
mV
mV
mV
mV
mV
V
V
mV
mV
us
us
us
us
Ω
Ω
Ω
°C
us
Aug. 2013
5 Page 
Confidential
Datasheet Version 1.0
Application Information
The below Figure illustrates an application of the MAP7154 in 3G, 3.5G, 4G transmitter. The MAP7154 is
designed for driving multiple Pas.
DAC (VREF) Control
An analog voltage to the VREF pin can dynamically program the output voltage from 0.4V to 3.5V in both PFM
and PWM modes of operation, without the need for external resistors. The output voltage is governed by VOUT
= VREF * 2.5 ( VREF = 0.16V to 1.4V)
Vbatt
2.7~4.5V
Cin
10uF
BB or
RFIC
GPIO
GPIO
DAC
MAP7154
VIN SW
EN
BYP
VREF
FB
SGND
PGND
L1
0.47uH
0.4V to 3.4V
Up to
800mArms
Vout
Cout
4.7uF
[Typical Application Diagram Supplying 3G, 3.5G, 4G Pas]
PA
PA
PA
EN
VREF
VREF = 0.56V
VREF < 160mV
VREF = 1.36V
≤10us
3.4V
VREF = 1.36V
VREF = 0.56V
≤10us
≤10us VREF < 100mV
3.4V
≤10us
VOUT 0.4V
1.4V
RF Power
10ms
10ms
1.4V
10ms
VREF = 1.36V
≤10us
3.4V
0V
[Dynamic Timing Adjustment of Output Voltage and 3G ~ 4G Transmitters]
Aug. 2013
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet MAP7154.PDF ] | |
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