RT6158H Datasheet, PDF (1/12 Pages) Richtek Technology Corporation – High Efficiency, Low Quiescent, 3A Buck-Boost Converter

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RT6158H
High Efficiency, Low Quiescent, 3A Buck-Boost Converter
General Description
The RT6158H converter is a high efficiency single inductor
converter which can operate with wide input voltage such
as battery which is higher or lower than the output voltage
and it can supply the load current up to 3A. The maximum
peak current in the switches is limited to a typical value of
6.5A. Feedback loop is internally compensated for both
Buck and Boost operation and it provides seamless
transition between Buck and Boost modes and optimal
transient response. The Buck-Boost operates at 1.5MHz
typical switching frequency in full synchronous operation.
The RT6158H operates in Pulse Frequency Modulation
(PFM) mode for increasing efficiency during low power
RF transmission modes. The PFM mode can be disabled,
forcing the RT6158H to operate at a fixed switching
frequency operation at 2MHz. The RT6158H can also be
synchronized with external frequency from 2.2MHz to
2.6MHz. The RT6158H output voltage is programmable
using an external resistor divider; the output voltage range
is from 2.1V to 5.2V.
Ordering Information
RT6158H
Note :
Package Type
WSC : WL-CSP-25B 2.07x2.33 (BSC)
Richtek products are :
 RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
0K : Product Code
0K YM
DNN
YMDNN : Date Code
Features
 Input Voltage Range : 2.5V to 5.5V
 Adjustable Output Voltage : 2.1V to 5.2V by External
Divided Resistors
 Up to 3A Maximum Load Capability for V_IN = 3V,
V_OUT = 3.5V
 Up to 96% Efficiency
 OCP, OVP, OTP Protected Function
 2MHz Switching Frequency
 5μA Non-Switching Low Quiescent Maximizes
Light Load Efficiency
 Forced PWM and Automatic PFM/PWM Mode
Selection
 Output Fast Discharge Function
 Automatic / Seamless Step Up and Step Down
Mode Transitions
 25-Ball WL-CSP Package
Applications
 Cellular Telephones
 RF Power Amplifiers
 Tablet PC
 Portable Instrument
Pin Configuration
(TOP VIEW)
A1
A2
A3
A4
A5
PVIN PVIN PVIN PVIN AVIN
B1
B2
B3
B4
B5
LX1 LX1 LX1 LX1 EN
C1
C2
C3
C4
C5
PGND PGND PGND MODE AGND
D1
D2
D3
D4
D5
LX2 LX2 LX2 LX2 AGND
E1
E2
E3
E4
E5
VOUT VOUT VOUT VOUT FB
WL-CSP-25B 2.07x2.33 (BSC)
Copyright ©2017 Richtek Technology Corporation. All rights reserved.
DS6158H-00 March 2017
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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